# 8 vs Detection Trainer

The clearest difference is in-app purchases: Detection Trainer at none against 8's 1. Detection Trainer also leads on update cadence (every 3 days vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 8 sells 1 one-off in-app purchase. Detection Trainer asks for nothing beyond the download.

8 ships an update every 6 months, Detection Trainer every 3 days. The most recent releases landed on September 28, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 8 | Detection Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/8-bit-nails/id6737764793/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 11 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [TwoCentStudios](https://appshunter.io/developer/325347285) | [Mattias Sundberg](https://appshunter.io/developer/1848597621) |

## What reviewers say

### 8

[App page](https://appshunter.io/ios/app/8-bit-nails/id6737764793)

Create and save pixel art nail designs with easy-to-use tools. Organize your creations in a personal diary and share them with friends. Display your current nail art on your home screen with a widget.

**Highlights:** Pixel art nail editor, Design collection with dated entries, Copy designs between nails, Share creations with backgrounds, Home screen widget

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 8-bit Nails Plus | $4.99 | one-time |


### Detection Trainer

[App page](https://appshunter.io/ios/app/detection-trainer/id6754518615)

**In-app purchases:** none


## Frequently asked questions

### Is 8 free?

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

### Is Detection Trainer free?

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

### Do 8 or Detection Trainer have ads?

Neither 8 nor Detection Trainer shows ads.

### Which is updated more often, 8 or Detection Trainer?

8 ships an update every 6 months, and Detection Trainer every 3 days. Most recently, 8 was updated on September 28, 2026 and Detection Trainer on October 7, 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.*