# LessonOS: Class Attendance

> Check-in for coaches & gyms

Canonical page: [https://chrome-stats.com/d/id6761799063](https://chrome-stats.com/d/id6761799063)

## Overview

- **ID:** `id6761799063`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Chumphon Jan Toolseram
- **Category:** Education
- **Version:** 1.5.1
- **Last updated:** 2026-05-30
- **First published:** 2026-04-12
- **Size:** 4.74 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/lessonos-class-attendance/id6761799063)
- **Website:** [https://lessonos.app](https://lessonos.app/)
- **Privacy policy:** [https://lessonos.app/privacy.html](https://lessonos.app/privacy.html)

## Description

Free for up to 15 students — one-time unlock for unlimited, no subscription. Offline attendance, check-in, recurring classes, credit packages, and analytics for coaches.

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.

## Rankings

- #1,788,220 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6761799063)