# Dart Theory vs Ochey

The clearest difference is in-app purchases: Dart Theory at none against Ochey's 1. Ochey's advantage is update cadence (every 6 days vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Ochey sells 1 one-off in-app purchase. Dart Theory asks for nothing beyond the download.

Dart Theory ships an update every 5 weeks, Ochey every 6 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Dart Theory | Ochey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dart-theory/id6764390881/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 6 days** |
| Monetization | Free | — |
| Size | 57 MB | 1 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jan Ulrych](https://appshunter.io/developer/1895760778) | [Yoshifumi Sato](https://appshunter.io/developer/6780413827) |

## What reviewers say

### Dart Theory

[App page](https://appshunter.io/ios/app/dart-theory/id6764390881)

This app enhances the mental game of darts players by offering focused training exercises. It helps improve speed, concentration, and confidence through practice of essential in-game calculations. Multiple game modes and customizable features cater to various player levels.

**Highlights:** Dart Math training, Checkout Drill practice, Remaining Score calculations, Endless and daily levels, Statistics tracking, Customizable experience

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

**In-app purchases:** none


### Ochey

[App page](https://appshunter.io/ios/app/ochey-darts-checkout-trainer/id6790624147)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ochey Pro | $4.99 | one-time |


## Frequently asked questions

### Is Dart Theory free?

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

### Is Ochey free?

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

### Do Dart Theory or Ochey have ads?

Neither Dart Theory nor Ochey shows ads.

### Which is updated more often, Dart Theory or Ochey?

Dart Theory ships an update every 5 weeks, and Ochey every 6 days. Most recently, Dart Theory was updated on October 24, 2026 and Ochey on October 25, 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.*