# BrainDen vs Fehm

The clearest difference is in-app purchases: Fehm at none against BrainDen's 3. Fehm also leads on update cadence (every 4 days vs monthly). BrainDen's advantage is iOS requirement (15.1 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. BrainDen sells 3 in-app purchases, starting at $19.99 per month. Fehm asks for nothing beyond the download.

BrainDen ships an update monthly, Fehm every 4 days. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | BrainDen | Fehm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Size | 49 MB | 14 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ogbemudia Terry Osayawe](https://appshunter.io/developer/1678791059) | [Bonded App LLC](https://appshunter.io/developer/1812522064) |

## What reviewers say

### BrainDen

[App page](https://appshunter.io/ios/app/brainden-lecture-note-taker/id6757434859)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BrainDen Pro - Monthly | $19.99 | per month |
| 6-Month Pro Subscription | $49.99 | per 6 months |
| BrainDen Pro - Annual Subscription | $99.99 | per year |


### Fehm

[App page](https://appshunter.io/ios/app/fehm/id6758907228)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BrainDen free?

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

### Is Fehm free?

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

### Do BrainDen or Fehm have ads?

Neither BrainDen nor Fehm shows ads.

### Which is updated more often, BrainDen or Fehm?

BrainDen ships an update monthly, and Fehm every 4 days. Most recently, BrainDen was updated on September 25, 2026 and Fehm on September 18, 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.*