# CSM LearnStrike vs e

The clearest difference is update cadence: e at every 10 days against CSM LearnStrike's every 3 weeks. e also leads on iOS requirement (12.3 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CSM LearnStrike ships an update every 3 weeks, e every 10 days. The most recent releases landed on September 9, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | CSM LearnStrike | e |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Size | 301 MB | 58 MB |
| Requires iOS | 14.0 | **12.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [4Growth.com](https://appshunter.io/developer/1728434002) | [ELOSOFT INC](https://appshunter.io/developer/1582738042) |

## What reviewers say

### CSM LearnStrike

[App page](https://appshunter.io/ios/app/csm-learnstrike/id6450264607)

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

**In-app purchases:** none


### e

[App page](https://appshunter.io/ios/app/e-trb/id6458732896)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CSM LearnStrike free?

CSM LearnStrike is free to download, with no in-app purchases.

### Is e free?

e is free to download, with no in-app purchases.

### Do CSM LearnStrike or e have ads?

Neither CSM LearnStrike nor e shows ads.

### Which is updated more often, CSM LearnStrike or e?

CSM LearnStrike ships an update every 3 weeks, and e every 10 days. Most recently, CSM LearnStrike was updated on September 9, 2026 and e on September 27, 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.*