# Echo vs MemexAI

The clearest difference is in-app purchases: MemexAI at none against Echo's 2. MemexAI also leads on update cadence (weekly vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Echo sells 2 in-app purchases, starting at $5.99 per month. MemexAI asks for nothing beyond the download.

Echo ships an update every 2 weeks, MemexAI weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Echo | MemexAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/memexai/id6760325170/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | — | Free |
| Size | 47 MB | 154 MB |
| Requires iOS | **15.1** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LOGAN JAMES COY](https://appshunter.io/developer/1877375342) | [WeShop.com Limited](https://appshunter.io/developer/1589414225) |

## What reviewers say

### Echo

[App page](https://appshunter.io/ios/app/echo-private-ai-journal/id6759198982)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Echo+ Monthly | $5.99 | per month |
| Echo+ Yearly | $49.99 | per year |


### MemexAI

[App page](https://appshunter.io/ios/app/memexai/id6760325170)

This AI-powered personal recorder captures text, photos, and voice, automatically organizing them into structured timeline cards. It discovers patterns and generates insights, allowing you to chat with your records for summaries and connections. All data remains on your device for enhanced privacy.

**Highlights:** Capture text, photos, and voice, AI-generated structured timeline cards, Automatic tagging and entity extraction, Insight generation with charts and narratives, Chat with your records for summaries, P.A.R.A. methodology organization, On-device data storage and privacy

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

**In-app purchases:** none


## Frequently asked questions

### Is Echo free?

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

### Is MemexAI free?

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

### Do Echo or MemexAI have ads?

Neither Echo nor MemexAI shows ads.

### Which is updated more often, Echo or MemexAI?

Echo ships an update every 2 weeks, and MemexAI weekly. Most recently, Echo was updated on October 31, 2026 and MemexAI 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.*