# PMPlattform vs STEMQuest

The clearest difference is iOS requirement: PMPlattform at 11.0 against STEMQuest's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

PMPlattform ships an update every 3 weeks, STEMQuest every 4 weeks. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PMPlattform | STEMQuest |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Size | 111 MB | 7 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Adrian Mielke](https://appshunter.io/developer/1482728666) | [HANG ZHENG](https://appshunter.io/developer/1871954264) |

## What reviewers say

### PMPlattform

[App page](https://appshunter.io/ios/app/pmplattform/id1482728667)

**Features:** macOS Compatibility

**In-app purchases:** none


### STEMQuest

[App page](https://appshunter.io/ios/app/stemquest/id6758280282)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PMPlattform free?

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

### Is STEMQuest free?

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

### Do PMPlattform or STEMQuest have ads?

Neither PMPlattform nor STEMQuest shows ads.

### Which is updated more often, PMPlattform or STEMQuest?

PMPlattform ships an update every 3 weeks, and STEMQuest every 4 weeks. Most recently, PMPlattform was updated on October 6, 2026 and STEMQuest on October 9, 2026.

---

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