# MisSTD vs AllTCAS

The clearest difference is ads: MisSTD at none against AllTCAS's shown. MisSTD also leads on update cadence (every 6 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

MisSTD ships an update every 6 days, AllTCAS fortnightly. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | MisSTD | AllTCAS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Fortnightly |
| Size | 31 MB | 176 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Adul Dae](https://appshunter.io/developer/1644354736) | [ALL LEARN CORPORATION LIMITED](https://appshunter.io/developer/1834639044) |

## What reviewers say

### MisSTD

[App page](https://appshunter.io/ios/app/misstd/id6777321164)

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

**In-app purchases:** none


### AllTCAS

[App page](https://appshunter.io/ios/app/alltcas/id6789263820)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MisSTD free?

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

### Is AllTCAS free?

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

### Do MisSTD or AllTCAS have ads?

AllTCAS shows ads; MisSTD does not.

### Which is updated more often, MisSTD or AllTCAS?

MisSTD ships an update every 6 days, and AllTCAS fortnightly. Most recently, MisSTD was updated on October 12, 2026 and AllTCAS on October 10, 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.*