# CMST vs Ottish | E

The clearest difference is update cadence: Ottish | E at every 2 weeks against CMST's every 5 weeks. CMST's advantage is iOS requirement (12.0 vs 15.1). 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.

CMST ships an update every 5 weeks, Ottish | E every 2 weeks. The most recent releases landed on September 29, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | CMST | Ottish | E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Size | 49 MB | 35 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Susankya Tech Pvt. Ltd.](https://appshunter.io/developer/1498119114) | [Vividia Infosys](https://appshunter.io/developer/1862105476) |

## What reviewers say

### CMST

[App page](https://appshunter.io/ios/app/cmst/id1472710330)

**In-app purchases:** none


### Ottish | E

[App page](https://appshunter.io/ios/app/ottish-e-learning-platform/id6777614537)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CMST free?

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

### Is Ottish | E free?

Ottish | E is free to download, with no in-app purchases.

### Do CMST or Ottish | E have ads?

Neither CMST nor Ottish | E shows ads.

### Which is updated more often, CMST or Ottish | E?

CMST ships an update every 5 weeks, and Ottish | E every 2 weeks. Most recently, CMST was updated on September 29, 2026 and Ottish | E on September 30, 2026.

---

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