# ReadTrace Pro vs SimAlive

The clearest difference is in-app purchases: ReadTrace Pro at none against SimAlive's 1. ReadTrace Pro also leads on update cadence (every 3 days vs weekly). SimAlive's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. SimAlive sells 1 one-off in-app purchase. ReadTrace Pro asks for nothing beyond the download.

ReadTrace Pro ships an update every 3 days, SimAlive weekly. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ReadTrace Pro | SimAlive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/readtrace-pro/id6760514671/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Free | — |
| Size | 2 MB | 8 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [熵析云枢网络科技](https://appshunter.io/developer/1873311794) | [XUYANG WANG](https://appshunter.io/developer/1887573187) |

## What reviewers say

### ReadTrace Pro

[App page](https://appshunter.io/ios/app/readtrace-pro/id6760514671)

Save articles from the web for offline reading with a clean, serif-first interface. Organize saved content with custom collections and find anything with intelligent on-device search. Enjoy a private, ad-free reading experience designed for focused consumption.

**Highlights:** Save articles from web, Offline reading, Custom collections, Semantic search, Auto-tagging, iCloud backup, Ad-free experience

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

**In-app purchases:** none


### SimAlive

[App page](https://appshunter.io/ios/app/simalive/id6761061255)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SimAlive Pro | $9.99 | one-time |


## Frequently asked questions

### Is ReadTrace Pro free?

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

### Is SimAlive free?

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

### Do ReadTrace Pro or SimAlive have ads?

Neither ReadTrace Pro nor SimAlive shows ads.

### Which is updated more often, ReadTrace Pro or SimAlive?

ReadTrace Pro ships an update every 3 days, and SimAlive weekly. Most recently, ReadTrace Pro was updated on October 9, 2026 and SimAlive on October 5, 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.*