# DropBrain vs Axiom

The clearest difference is iOS requirement: Axiom at 15.0 against DropBrain's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. DropBrain sells 1 in-app purchase, starting at $2.99 per month and Axiom sells 4 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | DropBrain | Axiom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/axiom-your-ai-second-brain/id6778582936/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | — | Freemium |
| Size | 52 MB | 82 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Brandstedt](https://appshunter.io/developer/1817437339) | [Mithilkumar Shashikant Patel](https://appshunter.io/developer/6778583028) |

## What reviewers say

### DropBrain

[App page](https://appshunter.io/ios/app/dropbrain/id6747975488)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription | $2.99 | per month |


### Axiom

[App page](https://appshunter.io/ios/app/axiom-your-ai-second-brain/id6778582936)

Organize thoughts, media, and archives into a unified cognitive workspace. This AI-powered tool transforms your inputs into structured, searchable insights and creates visual memory reels with AI narration. It offers secure, private data management with local biometric architecture and automated data purging.

**Highlights:** Instant knowledge ingestion (scan, voice, document, paste, AI generation), Cinematic memory reels with AI voice-over narration, Interactive vault chat for data summarization and analysis, Chronos timeline and knowledge graph visualization, Local biometric security and data privacy, Automated data purge option

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Axiom Creation Engine Monthly | $19.99 | per month |
| Axiom Infinite Brain Monthly | $49.99 | per month |
| Axiom Creation Engine Annual | $200.00 | per year |
| Axiom Infinite Brain Annual | $450.00 | per year |


## Frequently asked questions

### Is DropBrain free?

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

### Is Axiom free?

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

### Do DropBrain or Axiom have ads?

Neither DropBrain nor Axiom shows ads.

### Which is updated more often, DropBrain or Axiom?

DropBrain ships an update weekly, and Axiom weekly. Most recently, DropBrain was updated on October 25, 2026 and Axiom on October 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.*