# LessonOS: Class Attendance — Check-in for coaches & gyms

> Check-in for coaches & gyms (iPhone/iPad app by Chumphon Jan Toolseram.)

- Source: https://appshunter.io/ios/app/lessonos-class-attendance/id6761799063 (this page in markdown: same URL + `.md`)
- Developer: [Chumphon Jan Toolseram](https://appshunter.io/developer/1891557073)
- Category: Education, Business
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English, French (France), Indonesian, Japanese, Malay, Chinese (Simplified, China), European Spanish
- Released: 2026-04-12
- Data updated: 2026-06-04
- User reviews in markdown: https://appshunter.io/ios/app/lessonos-class-attendance/id6761799063/reviews.md

## What is LessonOS?

LessonOS is a simple, offline attendance and student management app for trainers, coaches, and small studios. Track class attendance, check students in with a single tap, schedule recurring classes, and manage credit packages — all on your iPhone, with no account and no internet required.

Built for instructors who'd rather teach than fight a spreadsheet, LessonOS keeps your students, classes, and attendance organized in one fast, private app.

WHO IT'S FOR
• Martial arts schools — kungfu, karate, taekwondo, BJJ, and judo dojos tracking student attendance and class credits
• Coaches and private tutors — sports, music, dance, and academic instructors managing class rosters
• Gyms and fitness studios — yoga, pilates, and personal training studios checking members into classes
• Any small training business that wants to replace a paper notebook or spreadsheet — without a costly monthly subscription

KEY FEATURES
• Student management — add, search, and organize students with status and per-student analytics
• Recurring class scheduling — set up weekly classes (e.g. Tue/Thu/Sat) and auto-generate every session
• One-tap check-in — tap to check students into a class, with undo for mistakes
• Attendance tracking — see who attended each class and keep an accurate roster
• Credit packages — sell class passes (10-class card, 20-class card) and deduct credits automatically
• Leave requests — record and approve student absences and make-up credits
• Attendance analytics — spot who's showing up and who's drifting away before they quietly stop coming
• CSV import & export — migrate from a spreadsheet in minutes
• Backup & restore — keep your data safe with iCloud backup
• Multiple branches — manage more than one location or training center
• 7 languages — English, Chinese, Japanese, Spanish, Malay, Indonesian, and French

WHY LESSONOS
• Offline-first — works with no internet; your data stays on your device
• No account needed — open the app and start; no sign-up, no email, no password
• No subscription — free for up to 15 students, then a one-time unlock for unlimited. No monthly fees, ever
• Private by design — your student data is stored locally, not held in someone else's cloud
• Fast and lightweight — built for trainers and instructors, not accountants

Whether you run a martial arts dojo, coach a sports team, teach private music or dance lessons, or operate a small fitness studio, LessonOS gives you a clean, offline tool to manage students, take attendance, track check-ins, and sell class credits.

Download LessonOS and bring order to your classes today.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Unlock | $14.99 | one-time |
| Business Unlock | $29.99 | one-time |



## Version history (last 5 releases)

### 1.5.1 — 2026-05-30

Polish and behind-the-scenes improvements. Thanks for using LessonOS!

### 1.5.0 — 2026-05-11

A guided first-run experience makes LessonOS easier to start with. New users see a six-slide visual tour that previews how students, classes, attendance, leaves, and per-student analytics actually look — not just descriptions, but real UI previews.

After the tour, empty screens now provide a clear "Add Your First Student" call-to-action instead of a blank list. Step-by-step hints guide you through the first full cycle: add a student, schedule a class, take attendance.

Available in 7 languages: English, Simplified Chinese, Japanese, Spanish, Malay, Indonesian, French.

### 1.4.0 — 2026-04-18

v1.4.0 — Analytics 2.0

  • NEW: Per-class attendance analytics with attendance rate, trend, and top attendees
  • NEW: Per-student attendance analytics with streaks and credit burn rate
  • Tap the chart icon on a class card to see detailed stats
  • Pro tier feature — free users get a 7-day preview
  • UI fixes: app logo in top-left, chart icon tap now navigates correctly

v1.4.0 — 数据分析 2.0

  • 新增：班级考勤数据分析，含出勤率、趋势图和最常出勤学员
  • 新增：学员考勤数据分析，含连续出勤和课时消耗速率
  • 点击班级卡片上的图表图标即可查看详细统计
  • 专业版功能 — 免费版用户可查看 7 天预览
  • 界面优化：顶部显示应用图标，图表按钮点击正常跳转

### 1.1.0 — 2026-04-18

v1.1.0 includes:
  • 7 languages: English, Simplified Chinese, Japanese, Spanish, Malay, Indonesian, French
  • In-app language picker in Settings
  • iCloud Drive backup and restore (Pro tier)
  • Firebase crash reporting for faster bug fixes
  • UI and performance improvements

### 1.0.1 — 2026-04-12

Now supports iOS 17.0 and newer (iPhone XS and later)

## More apps by Chumphon Jan Toolseram

- [Samadhi: Theravada Meditation](https://appshunter.io/ios/app/samadhi-theravada-meditation/id6762004223)
- [Meridian: Acupressure Atlas](https://appshunter.io/ios/app/meridian-acupressure-atlas/id6772853956)

All apps by Chumphon Jan Toolseram: https://appshunter.io/developer/1891557073

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*