Comparison

LessonKeeper vs CM

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

LessonKeeper

Create and share engaging lessons with students using rich media like text, images, audio, and video. Students can access lessons via a web link without needing the app. Track student progress, manage payments, and sync data across devices.

Highlights
  • Create multimedia-rich lessons
  • Share lessons via web link
  • Real-time lesson edits
  • Student progress tracking
  • Payment and invoice management
  • Cross-device data sync
  • Export lesson data to CSV
Features
Read full description

LessonKeeper is a virtual lesson notebook that lets you stay in-sync with your students, whether you’re doing lessons online or in person. Easily create shareable lessons filled with text, images, audio, YouTube clips, PDFs, and more. Then, send the lesson to your student via email, Messages, or any other system where they can receive a link. The student doesn’t need an app to access the lesson — all they need is an internet-enabled device that can access a webpage. Students can view the lessons on their device, including listening to sound clips you’ve recorded, watch embedded YouTube videos, etc. Plus, if you edit the lesson, the student sees the edits without you having to send the information again — it just appears on their lesson. LessonKeeper is free to use for up to 3 students and 5 lessons per week, with limits on how much multimedia you can upload. With a monthly or yearly subscription plan, you unlock all of the app’s features. LessonKeeper features: - Easily keep records of your students and their lessons - Build multimedia rich lessons including text, checklists, images, PDFs, YouTube clips, audio clips, and more - Send lessons to students in a variety of ways including email, Messages, etc - Sync your data between LessonKeeper on multiple devices - Students can respond to assignments, including uploading their own audio clips - Keep track of what students owe and pay using LessonKeeper’s ledger system - Easily send invoices to students - Export CSV (spreadsheet) files with lesson data for all your lessons and students, or filtered by search criteria Subscription info: - LessonKeeper offers monthly or yearly auto-renewing subscription plans in order to access its full set of features. - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase - Privacy policy: https://lessonkeeper.app/privacy.html / Terms of use: https://lessonkeeper.app/terms.html - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.

About

CM

Features
Read full description

Introducing the ultimate solution for Sri Lankan educators and center owners - our new mobile app! With our app, managing students has never been easier. Whether you're a teacher or a center owner, you can now manage students right from your fingertips. Our app supports multiple languages and both NFC and barcodes, so you can use it with Apple mobile devices. Users can check details from their own devices, making it incredibly convenient and easy to use. Every student is given an NFC-enabled ID card, which makes tracking attendance and payments a breeze. With just a tap, you can mark student attendance and payments, send SMS to students, and view detailed reports of each student. But that's not all - our app also allows you to add exams and marks, homework, and e-learning videos. You can even manage staff and their access to the app, ensuring that everyone stays on track and up-to-date. Need to generate detailed reports about payments, absent students, or active students? No problem! Our app has got you covered. And with our POS device, you can even get a daily payment summary. The best part? Our app is incredibly affordable, making it accessible to educators and center owners of all budgets. Say goodbye to the days of paperwork and manual tracking - download our app today and streamline your student management process like never before!

Screenshots

LessonKeeper4 screens
CM3 screens

Verdict

The call

The clearest difference is in-app purchases: CM at none against LessonKeeper's 2. LessonKeeper's advantage is device support (4 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. LessonKeeper sells 2 in-app purchases, starting at $7.99 per month. CM asks for nothing beyond the download.

UpkeepUpdate frequency

LessonKeeper ships an update every 2 weeks, CM every 3 weeks. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
LessonKeeper versus CM: the parameters behind the verdict, then further details
ParameterLessonKeeperCM
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS15.0 — better16.6
Further details — not scored
Size11 MB58 MB
Age rating4+17+
DeveloperJohn NastosSahan Nagodavithana

In-app purchases

2 purchases

LessonKeeper

Subscriptions2
  • Monthly Subscription$7.991 Month
  • Yearly Subscription$79.991 Year
None

CM

No in-app purchases

Questions

Is LessonKeeper free?
LessonKeeper is free to download, with in-app purchases available.
Is CM free?
CM is free to download, with no in-app purchases.
Do LessonKeeper or CM have ads?
Neither LessonKeeper nor CM shows ads.
Which is updated more often, LessonKeeper or CM?
LessonKeeper ships an update every 2 weeks, and CM every 3 weeks. Most recently, LessonKeeper was updated on October 9, 2026 and CM on October 8, 2026.

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