# Simubus vs REBT Pro

The clearest difference is iOS requirement: Simubus at 15.0 against REBT Pro's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Simubus sells 3 in-app purchases, starting at $12.90 per month and REBT Pro sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Simubus ships an update every 3 weeks, REBT Pro every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Simubus | REBT Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 60 MB | 29 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Chongqing Shengniu Technology Co., Ltd](https://appshunter.io/developer/1868286779) | [Manuel Mogrovejo](https://appshunter.io/developer/1888765151) |

## What reviewers say

### Simubus

[App page](https://appshunter.io/ios/app/simubus/id6757686667)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Subscription | $12.90 | per month |
| Yearly Pro Subscription | $69.99 | per year |
| Lifetime | $79.99 | one-time |


### REBT Pro

[App page](https://appshunter.io/ios/app/rebt-pro/id6761301576)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| REBT Pro Mensual | $3.99 | per month |
| REBT Pro Anual | $34.99 | per year |


## Frequently asked questions

### Is Simubus free?

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

### Is REBT Pro free?

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

### Do Simubus or REBT Pro have ads?

Neither Simubus nor REBT Pro shows ads.

### Which is updated more often, Simubus or REBT Pro?

Simubus ships an update every 3 weeks, and REBT Pro every 2 weeks. Most recently, Simubus was updated on October 24, 2026 and REBT Pro 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.*