# TutorOn vs STEM Prep Tutoring

The clearest difference is in-app purchases: STEM Prep Tutoring at none against TutorOn's 2. STEM Prep Tutoring also leads on iOS requirement (13.0 vs 15.0). TutorOn's advantage is update cadence (monthly vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. TutorOn sells 2 in-app purchases, starting at $9.99 per month. STEM Prep Tutoring asks for nothing beyond the download.

TutorOn ships an update monthly, STEM Prep Tutoring every 10 months. The most recent releases landed on September 14, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | TutorOn | STEM Prep Tutoring |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 10 months |
| Size | 37 MB | 226 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tutoron L.L.c](https://appshunter.io/developer/1572630660) | [STEM Consulting Inc](https://appshunter.io/developer/1815470791) |

## What reviewers say

### TutorOn

[App page](https://appshunter.io/ios/app/tutoron/id1572630658)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Month Subscribe Product | $9.99 | per month |
| 1 Month Subscription | $9.99 | one-time |


### STEM Prep Tutoring

[App page](https://appshunter.io/ios/app/stem-prep-tutoring/id6746155613)

**In-app purchases:** none


## Frequently asked questions

### Is TutorOn free?

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

### Is STEM Prep Tutoring free?

STEM Prep Tutoring is free to download, with no in-app purchases.

### Do TutorOn or STEM Prep Tutoring have ads?

Neither TutorOn nor STEM Prep Tutoring shows ads.

### Which is updated more often, TutorOn or STEM Prep Tutoring?

TutorOn ships an update monthly, and STEM Prep Tutoring every 10 months. Most recently, TutorOn was updated on September 14, 2026 and STEM Prep Tutoring on September 25, 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.*