# Overlay One vs Mneme

The clearest difference is in-app purchases: Overlay One at none against Mneme's 3. Overlay One also leads on ads (none vs shown). Mneme's advantage is update cadence (every 10 days vs every 3 weeks) and iOS requirement (16.4 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Mneme sells 3 in-app purchases, starting at $2.99 per month. Overlay One asks for nothing beyond the download.

Overlay One ships an update every 3 weeks, Mneme every 10 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Overlay One | Mneme |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/mneme-your-second-brain/id6791384175/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 68 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [玉苏甫江 艾西热甫](https://appshunter.io/developer/1085611107) | [Aaron Pinto](https://appshunter.io/developer/1842249066) |

## What reviewers say

### Overlay One

[App page](https://appshunter.io/ios/app/overlay-one/id6770309850)

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

**In-app purchases:** none


### Mneme

[App page](https://appshunter.io/ios/app/mneme-your-second-brain/id6791384175)

This app helps you remember what you consume by organizing links, videos, PDFs, and thoughts into an evolving map. It identifies contradictions and emerging themes in your saved content, surfacing one insightful item daily.

**Highlights:** Self-organizing knowledge map, Identifies content contradictions, Tracks emerging themes and trends, Captures from any source, Daily curated insights, Integrates with other services

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mneme Plus (Monthly) | $2.99 | per month |
| Mneme Plus (Yearly) | $19.99 | per year |
| Mneme Plus (Lifetime) | $49.99 | one-time |


## Frequently asked questions

### Is Overlay One free?

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

### Is Mneme free?

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

### Do Overlay One or Mneme have ads?

Mneme shows ads; Overlay One does not.

### Which is updated more often, Overlay One or Mneme?

Overlay One ships an update every 3 weeks, and Mneme every 10 days. Most recently, Overlay One was updated on October 28, 2026 and Mneme 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.*