# UMFSTart vs Physics Study

The clearest difference is in-app purchases: UMFSTart at none against Physics Study's 2. UMFSTart also leads on iOS requirement (16.0 vs 18.6). Physics Study's advantage is update cadence (every 5 months vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. Physics Study sells 2 in-app purchases, starting at $5.99 per 7 days. UMFSTart asks for nothing beyond the download.

UMFSTart ships an update every 13 months, Physics Study every 5 months. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | UMFSTart | Physics Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 5 months** |
| Size | 39 MB | 20 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [UMFST G. E. Palade](https://appshunter.io/developer/1655736349) | [Patrick van der Ploeg](https://appshunter.io/developer/1789764470) |

## What reviewers say

### UMFSTart

[App page](https://appshunter.io/ios/app/umfstart/id6444630998)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics Study

[App page](https://appshunter.io/ios/app/physics-study-ai-helper/id6754838420)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Physics Helper Weekly | $5.99 | per 7 days |
| Physics Helper Annual | $39.99 | per year |


## Frequently asked questions

### Is UMFSTart free?

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

### Is Physics Study free?

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

### Do UMFSTart or Physics Study have ads?

Neither UMFSTart nor Physics Study shows ads.

### Which is updated more often, UMFSTart or Physics Study?

UMFSTart ships an update every 13 months, and Physics Study every 5 months. Most recently, UMFSTart was updated on September 7, 2026 and Physics Study on September 9, 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.*