# DeepIsland 深岛 vs MemexAI

The clearest difference is price: MemexAI at Free against DeepIsland 深岛's $0.99. MemexAI also leads on iOS requirement (15.5 vs 18.2). On update cadence, ads, in-app purchases and device support there is nothing between them.

MemexAI is free to download; DeepIsland 深岛 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DeepIsland 深岛 ships an update every 4 days, MemexAI weekly. The most recent releases landed on October 28, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | DeepIsland 深岛 | MemexAI |
| --- | --- | --- |
| Price | $0.99 | **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 | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | — | Free |
| Size | 22 MB | 154 MB |
| Requires iOS | 18.2 | **15.5** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [鉴 郗](https://appshunter.io/developer/559961494) | [WeShop.com Limited](https://appshunter.io/developer/1589414225) |

## What reviewers say

### DeepIsland 深岛

[App page](https://appshunter.io/ios/app/deepisland/id6741362565)

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

**In-app purchases:** none


### 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 DeepIsland 深岛 free?

DeepIsland 深岛 costs $0.99, with no in-app purchases.

### Is MemexAI free?

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

### Do DeepIsland 深岛 or MemexAI have ads?

Neither DeepIsland 深岛 nor MemexAI shows ads.

### Which is updated more often, DeepIsland 深岛 or MemexAI?

DeepIsland 深岛 ships an update every 4 days, and MemexAI weekly. Most recently, DeepIsland 深岛 was updated on October 28, 2026 and MemexAI on October 17, 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.*