# DIY Nano HD vs Arty Mouse Numbers

The clearest difference is in-app purchases: DIY Nano HD at none against Arty Mouse Numbers's 1. DIY Nano HD also leads on ads (none vs shown) and update cadence (every 10 months vs every 45 months). Arty Mouse Numbers's advantage is review sentiment (100% vs 80%) and device support (3 vs 1). On price, rating and ratings volume there is nothing between them.

Both are free to download. Arty Mouse Numbers sells 1 one-off in-app purchase. DIY Nano HD asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for DIY Nano HD against 5.0 for Arty Mouse Numbers. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews are what separate them: 80% of DIY Nano HD's written reviews are positive against 100% of Arty Mouse Numbers's.

DIY Nano HD ships an update every 10 months, Arty Mouse Numbers every 45 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | DIY Nano HD | Arty Mouse Numbers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/diy-nano-hd/id628518037/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/arty-mouse-numbers/id1218180975/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 months** | Every 45 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 105 MB | 63 MB |
| Requires iOS | **6.0** | 11.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Lawrence Hall of Science](https://appshunter.io/developer/462994550) | [Tap Tap Tales, SL](https://appshunter.io/developer/953158919) |

## What reviewers say

### DIY Nano HD

[App page](https://appshunter.io/ios/app/diy-nano-hd/id628518037)

Engage your family in hands-on nanoscale science activities with this app. It offers free, easy-to-follow instructions, material lists, and explanations, with links to videos and a comprehensive website for further exploration.

**Highlights:** Hands-on activities, Step-by-step instructions, Materials lists, Detailed explanations, Links to videos, Website integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Arty Mouse Numbers

[App page](https://appshunter.io/ios/app/arty-mouse-numbers/id1218180975)

This app offers interactive number activities for children aged 3-6. It features animated characters and mini-games designed to build confidence in counting, matching, adding, and sorting, while also developing motor skills.

**Highlights:** 12 interactive number activities, Mini play-again games, Counting, matching, adding, sorting, Develops motor skills, Animation and sound effects, Available in 7 languages

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arty Mouse Numbers Premium | $0.99 | one-time |


## Frequently asked questions

### Is DIY Nano HD free?

DIY Nano HD is free to download, with no in-app purchases.

### Is Arty Mouse Numbers free?

Arty Mouse Numbers is free to download, with in-app purchases available.

### Which has better reviews, DIY Nano HD or Arty Mouse Numbers?

DIY Nano HD and Arty Mouse Numbers are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do DIY Nano HD or Arty Mouse Numbers have ads?

Arty Mouse Numbers shows ads; DIY Nano HD does not.

### Which is updated more often, DIY Nano HD or Arty Mouse Numbers?

DIY Nano HD ships an update every 10 months, and Arty Mouse Numbers every 45 months. Most recently, DIY Nano HD was updated on November 1, 2026 and Arty Mouse Numbers on November 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*