# Brain Dump vs Du

The clearest difference is in-app purchases: Du at none against Brain Dump's 2. Brain Dump's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

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

Brain Dump ships an update every 4 days, Du every 3 weeks. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Brain Dump | Du |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Size | 66 MB | 28 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yarden Sagi](https://appshunter.io/developer/1887831324) | [Sindu Menon](https://appshunter.io/developer/1853308943) |

## What reviewers say

### Brain Dump

[App page](https://appshunter.io/ios/app/brain-dump-adhd-voice-notes/id6762185239)

**In-app purchases (2)**

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


### Du

[App page](https://appshunter.io/ios/app/du-it-reminders/id6785280838)

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

**In-app purchases:** none


## Frequently asked questions

### Is Brain Dump free?

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

### Is Du free?

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

### Do Brain Dump or Du have ads?

Neither Brain Dump nor Du shows ads.

### Which is updated more often, Brain Dump or Du?

Brain Dump ships an update every 4 days, and Du every 3 weeks. Most recently, Brain Dump was updated on October 7, 2026 and Du on September 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.*