# otu.ai vs NoteTrack

The clearest difference is in-app purchases: NoteTrack at none against otu.ai's 2. NoteTrack also leads on update cadence (every 3 days vs fortnightly) and iOS requirement (13.0 vs 15.1). otu.ai's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. otu.ai sells 2 in-app purchases, starting at $4.99 per month. NoteTrack asks for nothing beyond the download.

otu.ai ships an update fortnightly, NoteTrack every 3 days. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | otu.ai | NoteTrack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 27 MB | 73 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [opentutorials](https://appshunter.io/developer/1719897055) | [Bejinji](https://appshunter.io/developer/1840460049) |

## What reviewers say

### otu.ai

[App page](https://appshunter.io/ios/app/otuai/id6473810282)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $44.99 | per year |


### NoteTrack

[App page](https://appshunter.io/ios/app/notetrack/id6752664612)

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

**In-app purchases:** none


## Frequently asked questions

### Is otu.ai free?

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

### Is NoteTrack free?

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

### Do otu.ai or NoteTrack have ads?

NoteTrack shows ads; otu.ai does not.

### Which is updated more often, otu.ai or NoteTrack?

otu.ai ships an update fortnightly, and NoteTrack every 3 days. Most recently, otu.ai was updated on November 8, 2026 and NoteTrack on October 30, 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.*