# Kegel Study vs SimBex

The clearest difference is update cadence: SimBex at every 5 months against Kegel Study's every 21 months. Kegel Study's advantage is iOS requirement (8.0 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Kegel Study ships an update every 21 months, SimBex every 5 months. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Kegel Study | SimBex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 5 months** |
| Size | 85 MB | 431 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [University of California at San Francisco](https://appshunter.io/developer/446489325) | [SimBex d.o.o.](https://appshunter.io/developer/1461096113) |

## What reviewers say

### Kegel Study

[App page](https://appshunter.io/ios/app/kegel-study/id1215415506)

**Features:** macOS Compatibility

**In-app purchases:** none


### SimBex

[App page](https://appshunter.io/ios/app/simbex/id1461096114)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kegel Study free?

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

### Is SimBex free?

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

### Do Kegel Study or SimBex have ads?

Neither Kegel Study nor SimBex shows ads.

### Which is updated more often, Kegel Study or SimBex?

Kegel Study ships an update every 21 months, and SimBex every 5 months. Most recently, Kegel Study was updated on October 15, 2026 and SimBex on October 12, 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.*