# SBN CLASSES vs LessonOS

The clearest difference is update cadence: LessonOS at every 2 days against SBN CLASSES's every 2 months. SBN CLASSES's advantage is iOS requirement (15.5 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SBN CLASSES sells 10 one-off in-app purchases and LessonOS sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

SBN CLASSES ships an update every 2 months, LessonOS every 2 days. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | SBN CLASSES | LessonOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 145 MB | 6 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Online Learning](https://appshunter.io/developer/1790866777) | [Chumphon Jan Toolseram](https://appshunter.io/developer/1891557073) |

## What reviewers say

### SBN CLASSES

[App page](https://appshunter.io/ios/app/sbn-classes/id6478146026)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - CE | $199.99 | one-time |
| Package - CH | $299.99 | one-time |
| Package - CI | $349.99 | one-time |
| Package - CJ | $399.99 | one-time |
| Package - CK | $449.99 | one-time |
| Package - CL | $499.99 | one-time |
| Package - CM | $599.99 | one-time |
| Package - CN | $699.99 | one-time |
| Package - CO | $799.99 | one-time |
| Package - CP | $899.99 | one-time |


### LessonOS

[App page](https://appshunter.io/ios/app/lessonos-class-attendance/id6761799063)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

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


## Frequently asked questions

### Is SBN CLASSES free?

SBN CLASSES is free to download, with in-app purchases available.

### Is LessonOS free?

LessonOS is free to download, with in-app purchases available.

### Do SBN CLASSES or LessonOS have ads?

Neither SBN CLASSES nor LessonOS shows ads.

### Which is updated more often, SBN CLASSES or LessonOS?

SBN CLASSES ships an update every 2 months, and LessonOS every 2 days. Most recently, SBN CLASSES was updated on October 3, 2026 and LessonOS on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*