# DIY Nano HD vs Missing Numbers Minds

The clearest difference is in-app purchases: DIY Nano HD at none against Missing Numbers Minds's 2. DIY Nano HD also leads on iOS requirement (6.0 vs 26.1). Missing Numbers Minds's advantage is update cadence (every 5 months vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. Missing Numbers Minds sells 2 one-off in-app purchases. DIY Nano HD asks for nothing beyond the download.

DIY Nano HD ships an update every 10 months, Missing Numbers Minds every 5 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | DIY Nano HD | Missing Numbers Minds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/diy-nano-hd/id628518037/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 105 MB | 4 MB |
| Requires iOS | **6.0** | 26.1 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [The Lawrence Hall of Science](https://appshunter.io/developer/462994550) | [Juan Fullana](https://appshunter.io/developer/692107580) |

## 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


### Missing Numbers Minds

[App page](https://appshunter.io/ios/app/missing-numbers-minds/id980949764)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation for maintenance. | $0.99 | one-time |
| Extra for develop and maintenance | $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 Missing Numbers Minds free?

Missing Numbers Minds is free to download, with in-app purchases available.

### Do DIY Nano HD or Missing Numbers Minds have ads?

Neither DIY Nano HD nor Missing Numbers Minds shows ads.

### Which is updated more often, DIY Nano HD or Missing Numbers Minds?

DIY Nano HD ships an update every 10 months, and Missing Numbers Minds every 5 months. Most recently, DIY Nano HD was updated on November 1, 2026 and Missing Numbers Minds on October 26, 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.*