# onsim vs Culprit

The clearest difference is in-app purchases: onsim at none against Culprit's 2. onsim also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Culprit sells 2 in-app purchases, starting at $7.99 per month. onsim asks for nothing beyond the download.

onsim ships an update weekly, Culprit every 8 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | onsim | Culprit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 8 days |
| Size | 82 MB | 11 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [에이치비커넥트](https://appshunter.io/developer/1744133787) | [JIYULMOM](https://appshunter.io/developer/379186743) |

## What reviewers say

### onsim

[App page](https://appshunter.io/ios/app/onsim-exercise-to-your-rhythm/id6480011843)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### Culprit

[App page](https://appshunter.io/ios/app/culprit-pattern-finder/id6763222521)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Culprit Pro Monthly | $7.99 | per month |
| Culprit Pro Annual | $59.99 | per year |


## Frequently asked questions

### Is onsim free?

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

### Is Culprit free?

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

### Do onsim or Culprit have ads?

Neither onsim nor Culprit shows ads.

### Which is updated more often, onsim or Culprit?

onsim ships an update weekly, and Culprit every 8 days. Most recently, onsim was updated on November 4, 2026 and Culprit on November 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.*