# ExtMemo vs SimPulse

The clearest difference is ads: ExtMemo at none against SimPulse's shown. SimPulse's advantage is update cadence (every 6 days vs every 2 weeks) and iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. ExtMemo sells 3 in-app purchases, starting at $2.99 per month and SimPulse sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ExtMemo ships an update every 2 weeks, SimPulse every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | ExtMemo | SimPulse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/extmemo-personal-info-sphere/id6756668335/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 46 MB | 125 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ExtMemo AI Technology (Beijing) Co., Ltd](https://appshunter.io/developer/1855384465) | [Surachet Chutpimai](https://appshunter.io/developer/6785851871) |

## What reviewers say

### ExtMemo

[App page](https://appshunter.io/ios/app/extmemo-personal-info-sphere/id6756668335)

Capture, secure, and intelligently recall your ideas with an AI-powered external memory system. Offers end-to-end encryption for absolute privacy and seamless collaboration features. Export your data anytime without vendor lock-in.

**Highlights:** Smart Recall AI, Zero-Knowledge E2EE, Conflict-Free Collaboration, Encrypted Team Sharing, Web and Desktop App, Markdown Data Export, AI-Powered Mind Extension

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annually | $29.99 | per year |
| Linked Note AI | $3.99 | one-time |


### SimPulse

[App page](https://appshunter.io/ios/app/simpulse-sim-tracker/id6785851869)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sim Pulse Premium Monthly | $0.99 | per month |
| Sim Pulse Premium Yearly | $9.99 | per year |


## Frequently asked questions

### Is ExtMemo free?

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

### Is SimPulse free?

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

### Do ExtMemo or SimPulse have ads?

SimPulse shows ads; ExtMemo does not.

### Which is updated more often, ExtMemo or SimPulse?

ExtMemo ships an update every 2 weeks, and SimPulse every 6 days. Most recently, ExtMemo was updated on October 24, 2026 and SimPulse on October 24, 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.*