# go ka

> Seven small iPhone apps by go ka: countdown widget, AI trip planner, invoice maker, calorie counter, QR code maker, kids' vocabulary app and gym workout log.
> Every app has its own page here; the features, free parts and prices written on it
> are what the app actually does.

- Home: https://beforego.art/
- Home (de): https://beforego.art/de/
- Home (fr): https://beforego.art/fr/
- Home (it): https://beforego.art/it/
- Home (es): https://beforego.art/es/
- Home (es-MX): https://beforego.art/es-mx/
- Home (pt-BR): https://beforego.art/pt-br/
- Home (ja): https://beforego.art/ja/
- Home (ko): https://beforego.art/ko/
- Home (zh-Hans): https://beforego.art/zh-hans/
- Home (zh-Hant): https://beforego.art/zh-hant/
- Home (th): https://beforego.art/th/
- All apps on the App Store: https://apps.apple.com/developer/id1854274317
- Contact: qinqiangji@gmail.com
- TikTok: https://www.tiktok.com/@getbeforego
- Instagram: https://www.instagram.com/dyljqq/
- X: https://x.com/dyljqq21
- Reddit: https://www.reddit.com/user/lybjqq/
- RedNote (小红书): https://www.xiaohongshu.com/user/profile/64f946e700000000040276bd

## Apps

### BeforeGo: AI Itinerary Planner

An AI itinerary planner for iPhone that turns a travel post, link or note into a day-by-day trip plan, and writes the packing list from your destination and dates.

- Page: https://beforego.art/beforego/
- Page (de): https://beforego.art/beforego/de/
- Page (fr): https://beforego.art/beforego/fr/
- Page (it): https://beforego.art/beforego/it/
- Page (es): https://beforego.art/beforego/es/
- Page (es-MX): https://beforego.art/beforego/es-mx/
- Page (pt-BR): https://beforego.art/beforego/pt-br/
- Page (ja): https://beforego.art/beforego/ja/
- Page (ko): https://beforego.art/beforego/ko/
- Page (zh-Hans): https://beforego.art/beforego/zh-hans/
- Page (zh-Hant): https://beforego.art/beforego/zh-hant/
- Page (th): https://beforego.art/beforego/th/
- App Store: https://apps.apple.com/app/id6786561175
- Platform: iOS (iPhone, iPad)
- Category: Travel
- For: People who plan trips from other people's posts and guides, and pack from memory.
- Free: Free to start — no ads, no account required. Premium unlocks everything; a one-time lifetime purchase is also available.

### Countdown Widget: Any Event

A countdown widget app for iPhone where every widget size is free and the number of events is unlimited.

- Page: https://beforego.art/countdown/
- Page (pt-BR): https://beforego.art/countdown/pt-br/
- Page (de): https://beforego.art/countdown/de/
- Page (fr): https://beforego.art/countdown/fr/
- Page (it): https://beforego.art/countdown/it/
- Page (ja): https://beforego.art/countdown/ja/
- Page (ko): https://beforego.art/countdown/ko/
- Page (th): https://beforego.art/countdown/th/
- Page (zh-Hans): https://beforego.art/countdown/zh-hans/
- Page (zh-Hant): https://beforego.art/countdown/zh-hant/
- App Store: https://apps.apple.com/app/id6799846628
- Platform: iOS (iPhone, iPad)
- Category: Productivity
- For: Anyone counting down to a trip, wedding, exam, birthday or due date — or counting up from one.
- Free: Every widget size, unlimited events, reminders, repeats, count-up, daily on-device backup, iCloud sync.
- Paid: Pro unlocks 99 of the 151 backdrops, your own photos behind a countdown, the Pro typefaces, the Lock Screen Live Activity and inviting someone to count down with you. Annual plan with a 7-day free trial, monthly plan, or a one-time Lifetime purchase; prices are shown in the app before purchase.

### Smart Invoice & Estimate Maker

An iPhone invoice app that makes invoices, estimates and receipts as PDFs, with a scan-to-pay QR code on the invoice.

- Page: https://beforego.art/invoiceqr/
- Page (de): https://beforego.art/invoiceqr/de/
- Page (fr): https://beforego.art/invoiceqr/fr/
- Page (it): https://beforego.art/invoiceqr/it/
- Page (es): https://beforego.art/invoiceqr/es/
- Page (es-MX): https://beforego.art/invoiceqr/es-mx/
- Page (pt-BR): https://beforego.art/invoiceqr/pt-br/
- Page (ja): https://beforego.art/invoiceqr/ja/
- Page (ko): https://beforego.art/invoiceqr/ko/
- Page (zh-Hant): https://beforego.art/invoiceqr/zh-hant/
- Page (th): https://beforego.art/invoiceqr/th/
- App Store: https://apps.apple.com/app/id6790383156
- Platform: iOS (iPhone, iPad)
- Category: Business
- For: Freelancers, contractors and small businesses who bill from their phone rather than a desktop accounting suite.
- Free: Your first document — one in total, not one a month, whether it's an invoice, an estimate or a quote; editing or re-sending it is free — plus four of the ready-made QR designs.
- Paid: Pro: unlimited invoices and QR exports, 100+ invoice templates, 12+ QR styles and 16+ ready-made designs, a full brand kit, custom QR colours, dots and frames, and no app line at the foot of exports.

### DailyCalorie: Calories Left

An AI photo calorie counter for iPhone that shows what you can still eat today rather than what you already ate.

- Page: https://beforego.art/dailycalorie/
- App Store: https://apps.apple.com/app/id6798095407
- Platform: iOS (iPhone, iPad)
- Category: Health & Fitness
- For: People who quit other calorie apps because logging every item by hand was too slow.
- Free: 3 photo recognitions, full history and trends, the month calendar, the eating window, meals, exercise and the weight log.
- Paid: Pro, monthly or yearly (the yearly plan begins with a 7-day free trial): unlimited photo recognition, protein/carb/fat targets for every meal, a custom goal weight and pace, and CSV export.

### Custom QR Code Maker & Scan

An iPhone QR code generator and scanner that lets you style a code with colours, shapes and a logo without breaking it.

- Page: https://beforego.art/qrcodestudio/
- App Store: https://apps.apple.com/app/id6799589471
- Platform: iOS (iPhone, iPad)
- Category: Utilities
- For: Anyone putting a QR code on a menu, poster, business card or shop window and wanting it to look like it belongs there.
- Free: Making and scanning all twelve kinds of code, with the standard styles.
- Paid: QR Studio Pro, monthly or yearly (7-day free trial for new yearly subscribers): every illustrated scene, every frame and shape, gradients, custom colours and your own logo in the middle.

### 单词兽-拍照学单词·小学初中英语闯关

拍照学单词、闯关背单词的 iPhone app：1,671 个单词和句子排成 271 关，覆盖小学到初中常用词汇。

- Page: https://beforego.art/citu/
- App Store: https://apps.apple.com/app/id6796596826
- Platform: iOS (iPhone, iPad)
- Category: Education
- For: 学英语单词的小学、初中学生和家长。
- Free: 前 8 关、最近 7 天的错题复习、「拍拍」共 3 次、2 套基础换装与奖励。
- Paid: VIP（按月或按年自动续订，权益相同，支持家人共享）：全部 271 关、「拍拍」每天 50 次、完整错题本、熟练度分布、家长周报、iCloud 多设备同步。价格在确认购买前显示。

### Repdex: Gym Workout Tracker

A gym workout log for iPhone.

- Page: https://beforego.art/repdex/
- App Store: https://apps.apple.com/app/id6803828068
- Platform: iOS (iPhone, iPad)
- Category: Health & Fitness
- For: People logging strength training sessions.
- Free: All 1,324 exercises, all 10 instruction languages and unlimited workout logging; your history is never locked.
- Paid: Repdex Pro, monthly, yearly (7-day free trial for new subscribers) or a one-time Lifetime purchase: unlimited routines, advanced stats, CSV export and home-screen widgets.

## Free tools & guides

- [Days until calculator](https://beforego.art/tools/days-until/) — Free days-until calculator: type a date and get the exact number of days, weeks and the weekday. No sign-up. Link to your countdown to share it.
- [How many days until Christmas 2026?](https://beforego.art/tools/days-until-christmas/) — Christmas Day 2026 is on Friday, December 25, 2026. Live countdown in days and weeks, plus a free Home Screen widget for your iPhone.
- [How many days until Halloween 2026?](https://beforego.art/tools/days-until-halloween/) — Halloween 2026 is on Saturday, October 31, 2026. Live countdown in days and weeks, plus a free Home Screen widget for your iPhone.
- [How many days until Diwali 2026?](https://beforego.art/tools/days-until-diwali/) — Diwali 2026 is on Sunday, 8 November 2026, the day of Lakshmi Puja, with Dhanteras on 6 November. Live countdown in days and weeks, plus a free iPhone widget.
- [How many days until New Year 2027?](https://beforego.art/tools/days-until-new-year/) — New Year's Day 2027 is on Friday, January 1, 2027; New Year's Eve is Thursday, December 31, 2026. Live countdown plus a free iPhone widget.
- [How many days until Thanksgiving 2026?](https://beforego.art/tools/days-until-thanksgiving/) — Thanksgiving 2026 in the US is on Thursday, November 26, 2026, with Black Friday on the 27th. Live countdown in days and weeks, plus a free iPhone widget.
- [Christmas countdown widget for iPhone](https://beforego.art/tools/christmas-countdown-widget-iphone/) — A free Christmas countdown widget for your iPhone Lock Screen or Home Screen, step by step, with the iOS 27 extra large size. Christmas 2026 is December 25.
- [Quantos dias faltam? (contador de dias)](https://beforego.art/tools/pt-br/quantos-dias-faltam/) — Contador de dias grátis: digite uma data e veja quantos dias e semanas faltam e o dia da semana. Também conta os dias desde uma data. Sem cadastro.
- [Quantos dias faltam para o meu aniversário?](https://beforego.art/tools/pt-br/quantos-dias-faltam-para-o-meu-aniversario/) — Escolha o dia e o mês do seu aniversário e veja quantos dias, meses e horas faltam, em que dia da semana ele cai e quantos anos você vai fazer.
- [Quantos dias faltam para as férias?](https://beforego.art/tools/pt-br/quantos-dias-faltam-para-as-ferias/) — As aulas de 2026 vão até 18/12 na rede estadual de SP, MG, PR e RS e até 23/12 em PE. Veja quantos dias faltam ou conte os dias até as suas férias do trabalho.
- [Férias escolares em São Paulo (2026)](https://beforego.art/tools/pt-br/ferias-escolares-sao-paulo-2026/) — As aulas de 2026 na rede estadual de São Paulo vão até sexta-feira, 18 de dezembro. Veja quantos dias faltam e as datas da rede municipal da capital.
- [Férias escolares em Minas Gerais (2026)](https://beforego.art/tools/pt-br/ferias-escolares-minas-gerais-2026/) — As aulas de 2026 na rede estadual de Minas Gerais vão até sexta-feira, 18 de dezembro. Veja quantos dias faltam e os recessos de julho e de outubro.
- [Férias escolares no Paraná (2026)](https://beforego.art/tools/pt-br/ferias-escolares-parana-2026/) — As aulas de 2026 na rede estadual do Paraná vão até sexta-feira, 18 de dezembro. Veja quantos dias faltam e os trimestres e o recesso de julho.
- [Férias escolares no Rio Grande do Sul (2026)](https://beforego.art/tools/pt-br/ferias-escolares-rio-grande-do-sul-2026/) — As aulas de 2026 na rede estadual do Rio Grande do Sul vão até sexta-feira, 18 de dezembro. Veja quantos dias faltam e a previsão de volta às aulas em 2027.
- [Férias escolares em Pernambuco (2026)](https://beforego.art/tools/pt-br/ferias-escolares-pernambuco-2026/) — As aulas de 2026 na rede estadual de Pernambuco vão até quarta-feira, 23 de dezembro. Veja quantos dias faltam e as datas da recuperação final.
- [Quando é o quinto dia útil do mês?](https://beforego.art/tools/pt-br/quinto-dia-util/) — O quinto dia útil de novembro de 2026 é sábado, 7; o de dezembro, sábado, 5. Veja todos os meses até dezembro de 2027 e como contar: o sábado entra.
- [Contador de dias de namoro](https://beforego.art/tools/pt-br/contador-de-dias-de-namoro/) — Digite a data em que começaram a namorar e veja há quantos dias, meses e anos estão juntos, o próximo mesversário, os 100 dias e o aniversário de namoro.
- [Melhores apps de contagem regressiva para iPhone (2026)](https://beforego.art/tools/pt-br/melhores-apps-contagem-regressiva/) — Sete apps de contagem regressiva para iPhone comparados: o que é grátis, quais widgets são pagos, repetição e anúncios. Dados da App Store Brasil, set. 2026.
- [Como colocar contagem regressiva na tela de bloqueio do iPhone](https://beforego.art/tools/pt-br/contagem-regressiva-tela-de-bloqueio-iphone/) — Como colocar a contagem regressiva na tela de bloqueio e na Tela de Início do iPhone com um widget gratuito, passo a passo. O número de dias diminui sozinho.
- [Quantos dias faltam para o ENEM 2026?](https://beforego.art/tools/pt-br/dias-para-o-enem-2026/) — As provas do ENEM 2026 são em 8 e 15 de novembro de 2026 (Edital nº 64 do Inep). Contagem regressiva ao vivo e widget grátis para a tela de bloqueio do iPhone.
- [Quantos dias faltam para o Réveillon 2027?](https://beforego.art/tools/pt-br/contagem-regressiva-reveillon-2027/) — Réveillon: quinta-feira, 31/12/2026. Carnaval 2027: sábado, 6, a terça, 9 de fevereiro. Contagem ao vivo e widget grátis para a tela de bloqueio do iPhone.
- [Quantos dias faltam para o Carnaval 2027?](https://beforego.art/tools/pt-br/quantos-dias-faltam-para-o-carnaval-2027/) — Carnaval 2027: de sábado, 6, a terça-feira, 9 de fevereiro (Cinzas, dia 10). Contagem ao vivo e widget grátis para a tela de bloqueio do iPhone.
- [Quantos dias faltam para a Black Friday 2026?](https://beforego.art/tools/pt-br/contagem-regressiva-black-friday-2026/) — Black Friday 2026: contagem regressiva até 27 de novembro. Veja quantos dias faltam, a Cyber Monday e como pôr a contagem na tela de bloqueio do iPhone.
- [Quantos dias faltam para o Natal 2026?](https://beforego.art/tools/pt-br/quantos-dias-faltam-para-o-natal-2026/) — O Natal 2026 é na sexta-feira, 25 de dezembro, e a véspera na quinta, 24. Contagem regressiva ao vivo e widget grátis para a tela de bloqueio do iPhone.
- [Free invoice template](https://beforego.art/tools/invoice-template/) — A free invoice template you fill in on the page: your details, the client, line items with automatic totals and tax, then print or save as PDF. No sign-up.
- [Formato de cotización gratis](https://beforego.art/tools/es-mx/formato-de-cotizacion/) — Formato de cotización gratis para llenar en línea: tus datos, el cliente, los conceptos con importe e IVA que se calculan solos. Imprime o guarda en PDF, sin registro.
- [Formato de nota de venta gratis](https://beforego.art/tools/es-mx/nota-de-venta/) — Formato de nota de venta gratis para llenar en línea: folio, fecha, cliente y conceptos con importes e IVA que se calculan solos. Imprime o guarda en PDF, sin registro.
- [App para hacer cotizaciones en el iPhone](https://beforego.art/tools/es-mx/app-para-hacer-cotizaciones-iphone/) — Cómo hacer una cotización en el iPhone y mandarla en PDF por WhatsApp: cliente, conceptos, IVA, retenciones y CLABE; luego pásala a nota de venta.
- [Alternativa a Invoice Simple en México](https://beforego.art/tools/es-mx/alternativa-a-invoice-simple/) — Invoice Simple y Nota de Venta, Cotización lado a lado según la App Store de México: documentos, CFDI, cuántos son gratis, CLABE, retenciones y envío.
- [ใบเสนอราคา ฟรี](https://beforego.art/tools/th/bai-sanoe-rakha/) — แบบฟอร์มใบเสนอราคาฟรี สำหรับบุคคลธรรมดาและฟรีแลนซ์ กรอกบนหน้าเว็บ ยอดรวมคำนวณให้เอง แล้วพิมพ์หรือบันทึกเป็น PDF ไม่ต้องสมัคร ไม่ต้องโหลด Excel หรือ Word
- [ใบเสร็จรับเงิน ฟรี](https://beforego.art/tools/th/bai-set-rap-ngoen/) — แบบฟอร์มใบเสร็จรับเงินฟรี สำหรับบุคคลธรรมดาและร้านค้าเล็ก ๆ กรอกบนหน้าเว็บ ยอดรวมคำนวณให้เอง มีช่องลายมือชื่อผู้รับเงิน พิมพ์หรือบันทึกเป็น PDF ไม่ต้องสมัคร
- [報價單範本](https://beforego.art/tools/zh-hant/bao-jia-dan-fan-ben/) — 免費報價單範本：線上填好公司、客戶與品項，金額、稅額與總計自動計算，再列印或存成 PDF。不用註冊，港台都適用。
- [收據範本](https://beforego.art/tools/zh-hant/shou-ju-fan-ben/) — 免費收據範本：線上填寫「茲收到」格式的收據，輸入金額就自動寫出中文大寫，再列印或存成 PDF。不用註冊，港台都適用。
- [2027 農曆新年倒數](https://beforego.art/tools/zh-hant/nong-li-xin-nian-2027/) — 2027 年農曆新年是 2 月 6 日（星期六），除夕是 2 月 5 日。每天更新的過年倒數，加上台灣春節連假 7 天與香港公眾假期的日期。
- [2027 連假行事曆：下一個連假還有幾天？](https://beforego.art/tools/zh-hant/2027-lian-jia-xing-shi-li/) — 2027 年（民國 116 年）3 天以上的連假有 9 個：元旦 1/1–1/3、春節 2/4–2/10 共 7 天，還有 228、清明、勞動節、國慶、光復節、行憲紀念日。每個連假還有幾天，每天更新。
- [116 學測倒數](https://beforego.art/tools/zh-hant/116-xue-ce-dao-shu/) — 116 學年度學測在 2027 年 1 月 22 日（五）到 24 日（日），2 月 25 日公布成績。想要學測倒數桌布？用 iPhone 鎖定畫面的免費小工具，天數每天自動更新；另附報名與分科測驗日期。
- [116 會考倒數](https://beforego.art/tools/zh-hant/116-hui-kao-dao-shu/) — 116 年國中教育會考在 2027 年 5 月 15 日（六）、16 日（日），6 月 4 日寄發成績通知單。想要會考倒數桌布？用 iPhone 鎖定畫面的免費小工具，天數每天自動更新；另附報名與准考證日期。
- [iPhone 桌面倒數教學](https://beforego.art/tools/zh-hant/iphone-zhu-hua-mian-dao-shu/) — 把「還有幾天」放到 iPhone 主畫面和鎖定畫面的步驟。和寫上數字的桌布不同，小工具只要設定一次日期，數字每天自動更新；學測、會考、過年、連假都適用。
- [あと何日？（日数計算）](https://beforego.art/tools/ja/ato-nannichi/) — 日付を入れるだけで、今日からその日まであと何日か、何週間か、何曜日かを計算します。過ぎた日なら何日たったかも分かります。登録不要、結果はリンクで共有できます。
- [共通テスト2027まであと何日？](https://beforego.art/tools/ja/kyotsu-test-2027/) — 2027年の大学入学共通テストは1月16日（土）・17日（日）。本試験まであと何日かを毎日更新でカウントダウンし、100日前・1週間前の日付と、iPhoneのロック画面に置く方法をまとめました。
- [都立入試2027まであと何日？](https://beforego.art/tools/ja/toritsu-nyushi-2027/) — 令和9年度（2027年）の都立高校入試は、学力検査（第一次募集）が2月21日（日）、推薦入試が1月26日（火）・27日（水）。あと何日かを毎日更新でカウントダウンし、出願期間と合格発表日、iPhoneのロック画面に置く方法をまとめました。
- [カウントダウンを待ち受けにする方法（iPhone）](https://beforego.art/tools/ja/countdown-machiuke-iphone/) — iPhoneの待ち受け（ロック画面）やホーム画面に「あと何日」を表示する手順です。数字入りの壁紙画像と違い、ウィジェットなら日付を一度入れるだけで数字が毎日自動で減ります。
- [아이폰 디데이 위젯 설정 방법](https://beforego.art/tools/ko/iphone-didei-wijet/) — 아이폰 잠금 화면과 홈 화면에 디데이를 띄우는 방법입니다. 숫자를 넣은 배경화면과 달리, 위젯은 날짜를 한 번만 입력하면 남은 날이 매일 자동으로 줄어듭니다.
- [How to write an invoice](https://beforego.art/tools/how-to-write-an-invoice/) — How to write an invoice that gets paid: what to include, how to number it, payment terms that work, and the mistakes that delay payment. With a free template.
- [Packing list generator](https://beforego.art/tools/packing-list/) — Free packing list generator: pick the trip type and length and get a travel checklist you can tick off, print or copy. Beach, city, winter, business or backpacking.
- [Best countdown widget apps for iPhone (2026)](https://beforego.art/tools/best-countdown-widget-apps-iphone/) — Seven iPhone countdown widget apps compared on what is free, which widgets cost money, repeats and sync — from their US App Store listings, October 2026.
- [行程規劃 App 推薦（2026）](https://beforego.art/tools/zh-hant/xing-cheng-gui-hua-app/) — 7 款 iPhone 行程規劃 App 比較：行程怎麼排、能不能共同編輯、離線、行前清單。資料取自台灣 App Store 頁面（2026 年 10 月 12 日）。
- [旅行計画アプリおすすめ7選（2026）](https://beforego.art/tools/ja/ryoko-keikaku-app/) — iPhoneの旅行計画アプリ7つを、プランの作り方・共同編集・オフライン・持ち物リスト・有料機能で比較。日本のApp Storeの掲載内容（2026年10月12日）から。
- [여행 일정 앱 추천 (2026)](https://beforego.art/tools/ko/yeohaeng-iljeong-aep/) — 트리플이 11월 3일 서비스를 종료하고 NOL로 통합됩니다. 여행 일정 앱 5가지를 일정 짜기, 공동 편집, 오프라인, 준비물 체크리스트로 비교했습니다.
- [How to Put a Countdown on Your iPhone Lock Screen](https://beforego.art/blog/countdown-widget-iphone-home-lock-screen/) — How to add a free countdown widget to your iPhone Lock Screen and Home Screen, including the extra large size in iOS 27, and what Live Activity adds on top.
- [Count Down to a Birthday, Exam or Trip on iPhone](https://beforego.art/blog/count-down-birthday-exam-trip-iphone/) — How to set up a countdown for a birthday, exam or trip on iPhone, with repeats, templates, reminders and a place for the story.
- [Add a Payment QR Code to an Invoice and Get Paid Faster](https://beforego.art/blog/payment-qr-code-on-invoice/) — What a payment QR code on an invoice is, how clients scan it to pay, and how to track paid, unpaid and overdue invoices.
- [Invoice vs Estimate vs Quote: What's the Difference?](https://beforego.art/blog/invoice-vs-estimate-vs-quote/) — The plain-language difference between an invoice, an estimate and a quote, and how to turn one into the other with one tap.
- [Turn a Travel Post Screenshot into a Day-by-Day Itinerary](https://beforego.art/blog/travel-post-screenshot-to-itinerary/) — How to turn a screenshot, a link or a typed plan into a day-by-day itinerary, plus scanning tickets and bookings straight into it.
- [A Packing List That Fits the Destination: Plugs, Currency, Rules](https://beforego.art/blog/packing-list-by-destination/) — What to check per destination before you pack, and how a generated packing list covers plugs, currency, entry rules and reminders.
- [Free tools & guides — go ka](https://beforego.art/tools/) — Free, no-sign-up tools from go ka: days-until calculator and holiday countdowns, an invoice template and guide, and a packing list generator.
- [Ferramentas e guias grátis — go ka](https://beforego.art/tools/pt-br/) — Ferramentas grátis da go ka, sem cadastro: contador de dias, aniversário, férias com dias úteis, dias de namoro e contagem para o ENEM e o Natal.
- [Herramientas y guías gratis — go ka](https://beforego.art/tools/es-mx/) — Herramientas gratis y sin registro de go ka: formatos de cotización y nota de venta en línea, cómo cotizar desde el iPhone y una alternativa a Invoice Simple.
- [免費工具與指南 — go ka](https://beforego.art/tools/zh-hant/) — go ka 的免費工具，不用註冊：報價單範本、收據範本（線上填寫、自動計算、存成 PDF），以及 2027 農曆新年倒數。
- [無料ツールとガイド — go ka](https://beforego.art/tools/ja/) — go ka の無料ツール（登録不要）：今日からあと何日かを数える日数計算、共通テスト2027までのカウントダウン、カウントダウンを待ち受けにする方法。
- [เครื่องมือและคู่มือฟรี — go ka](https://beforego.art/tools/th/) — เครื่องมือฟรีจาก go ka ไม่ต้องสมัคร: แบบฟอร์มใบเสนอราคาและใบเสร็จรับเงินสำหรับบุคคลธรรมดาและฟรีแลนซ์ กรอกบนหน้าเว็บ คำนวณยอดให้เอง พิมพ์หรือบันทึกเป็น PDF
- [무료 도구와 가이드 — go ka](https://beforego.art/tools/ko/) — go ka의 무료 가이드: 아이폰 잠금 화면에 디데이 위젯을 띄우는 방법, 그리고 트리플 서비스 종료 후 쓸 만한 여행 일정 앱 비교.
- [Blog — guides for countdowns, invoices and trips | go ka](https://beforego.art/blog/) — How-to guides from go ka: countdown widgets on iPhone, payment QR codes on invoices, estimates vs quotes, and trip plans and packing lists.

## FAQ

### What is go ka?

go ka is an independent developer making small iPhone apps for everyday things: a countdown widget, an AI trip planner, an invoice maker, a photo calorie counter, a QR code maker, an English vocabulary app for kids and a gym workout tracker. All seven are published on the App Store under one developer account.

### Are the apps free?

All seven apps are free to download and can be used without paying. Extra features come with an optional subscription, and some apps also offer a one-time purchase. The price is always shown in the app before you confirm.

### Do I need to create an account?

No. None of the apps asks you to sign up or create an account. Where an app syncs between your devices, it uses your own iCloud.

### Which devices do the apps run on?

iPhone and iPad. Six of the apps need iOS 17 or later; DailyCalorie needs iOS 18 or later.

### Which languages are the apps available in?

Countdown, BeforeGo, Invoice Maker, DailyCalorie and Word Beast are available in 10 or more languages, including English, Chinese, Japanese, Korean, French, German, Italian, Portuguese and Thai. QR Studio and Repdex are in English.

### How do I get help with one of the apps?

Email qinqiangji@gmail.com and say which app it is about. Every message is read. Each app also has its own page on this site with its privacy policy and terms.

## Notes

- Every app is free to download. Paid parts, where there are any, are listed on each app's page.
- No app asks for an account or sign-up. Where an app syncs, it uses the user's own iCloud.
- Support and feedback: qinqiangji@gmail.com