--- title: "LessonOS: Class Attendance - Reviews, Revenue and Downloads in Brunei | Apple App Store" description: "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, a" --- # LessonOS: Class Attendance — Brunei > Check-in for coaches & gyms ![LessonOS App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/35/04/83/35048343-6411-394b-3e52-41f1effc4b36/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png) **Developer:** [Chumphon Jan Toolseram](https://apptail.io/developer/chumphon-jan-toolseram-lgypmc) **Category:** Education **Rating:** N/A (0 ratings) **Price:** Free **Bundle ID:** com.cjtoolseram.lessonos **Store:** Apple App Store **Country:** Brunei **Version:** 1.9.2 (released 2026-10-30) **Original Release:** 2026-04-12 **Languages:** Spanish, Chinese, French, Indonesian, English, Japanese, Malay **App Store Link:** [Download on Apple App Store](https://apps.apple.com/bn/app/app/id6761799063) **AppTail Page:** [https://apptail.io/app/lessonos-class-attendance-sbmA/brunei](https://apptail.io/app/lessonos-class-attendance-sbmA/brunei) ## LessonOS Description 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. ## LessonOS Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/0b/64/a3/0b64a339-deac-8971-5f7e-e9ec217b4ed5/07-welcome.png/1284x2778.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/96/d5/59/96d5592c-fecb-b103-2bed-884d3d713aa0/01-students.png/1284x2778.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/05/34/d8/0534d8fa-b326-088d-e489-9382a20126b9/03-checkin.png/1284x2778.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/6d/7c/34/6d7c340a-daf1-d642-8032-d21bdb932767/04-attendance.png/1284x2778.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/82/7c/13/827c1353-5f4f-6633-5083-89aa2bdf5859/02-classes.png/1284x2778.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/15/70/3e/15703efd-87a0-e88b-29e6-26e1c2cabed5/05-leaves.png/1284x2778.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/21/90/02/21900275-655a-c2b2-94b9-6af3fc203e57/06-analytics.png/1284x2778.png) ## LessonOS In-App Purchases | Item | Price | |------|-------| | Business Unlock | USD 29.99 | | Pro Unlock | USD 14.99 | ## LessonOS Available In - [Azerbaijan](https://apptail.io/app/lessonos-class-attendance-sbmA/azerbaijan) - [Brunei](https://apptail.io/app/lessonos-class-attendance-sbmA/brunei) - [Brazil](https://apptail.io/app/lessonos-class-attendance-sbmA/brazil) - [Estonia](https://apptail.io/app/lessonos-class-attendance-sbmA/estonia) - [Spain](https://apptail.io/app/lessonos-class-attendance-sbmA/spain) - [Greece](https://apptail.io/app/lessonos-class-attendance-sbmA/greece) - [Croatia](https://apptail.io/app/lessonos-class-attendance-sbmA/croatia) - [Indonesia](https://apptail.io/app/lessonos-class-attendance-sbmA/indonesia) - [Israel](https://apptail.io/app/lessonos-class-attendance-sbmA/israel) - [Italy](https://apptail.io/app/lessonos-class-attendance-sbmA/italy) - [Japan](https://apptail.io/app/lessonos-class-attendance-sbmA/japan) - [Kazakhstan](https://apptail.io/app/lessonos-class-attendance-sbmA/kazakhstan) - [Malta](https://apptail.io/app/lessonos-class-attendance-sbmA/malta) - [Mexico](https://apptail.io/app/lessonos-class-attendance-sbmA/mexico) - [Philippines](https://apptail.io/app/lessonos-class-attendance-sbmA/philippines) - [Pakistan](https://apptail.io/app/lessonos-class-attendance-sbmA/pakistan) - [Portugal](https://apptail.io/app/lessonos-class-attendance-sbmA/portugal) - [Saudi Arabia](https://apptail.io/app/lessonos-class-attendance-sbmA/saudi-arabia) - [Slovakia](https://apptail.io/app/lessonos-class-attendance-sbmA/slovakia) - [Thailand](https://apptail.io/app/lessonos-class-attendance-sbmA/thailand) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*