# Gero OS vs Memento AI

The clearest difference is in-app purchases: Memento AI at none against Gero OS's 4. Memento AI also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Gero OS sells 4 in-app purchases, starting at $8.99 per month. Memento AI asks for nothing beyond the download.

Gero OS ships an update weekly, Memento AI every 4 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Gero OS | Memento AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/memento-ai-second-brain/id6760240885/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | — | Free |
| Size | 13 MB | 47 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Allstyle Sweden AB](https://appshunter.io/developer/1869721418) | [Irakli Kochua](https://appshunter.io/developer/1831313246) |

## What reviewers say

### Gero OS

[App page](https://appshunter.io/ios/app/gero-os/id6757932972)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access Monthly | $8.99 | per month |
| Founder Pro Monthly | $49.90 | per month |
| Full Access Yearly | $59.99 | per year |
| Yearly Founder Pro | $399.00 | per year |


### Memento AI

[App page](https://appshunter.io/ios/app/memento-ai-second-brain/id6760240885)

Capture thoughts quickly via voice or text and have them automatically filed. Receive persistent reminders for deadlines that escalate as they approach. Ask questions in natural language to retrieve information from your notes.

**Highlights:** Voice and text note capture, Automatic transcription, Persistent deadline reminders, Natural language search, Private notes, Data export

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

**In-app purchases:** none


## Frequently asked questions

### Is Gero OS free?

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

### Is Memento AI free?

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

### Do Gero OS or Memento AI have ads?

Neither Gero OS nor Memento AI shows ads.

### Which is updated more often, Gero OS or Memento AI?

Gero OS ships an update weekly, and Memento AI every 4 days. Most recently, Gero OS was updated on October 25, 2026 and Memento AI on October 31, 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.*