# Model Colors vs Octonium

The clearest difference is update cadence: Octonium at every 5 days against Model Colors's monthly. Octonium also leads on iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Model Colors sells 4 in-app purchases, starting at $0.99 per month and Octonium sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Model Colors ships an update monthly, Octonium every 5 days. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Model Colors | Octonium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (447 ratings)](https://appshunter.io/ios/app/model-colors/id1200319954/reviews)** | — |
| Number of ratings | **447** | — |
| Positive reviews | 60.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 84 MB | 81 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [D-Pointer Oy](https://appshunter.io/developer/433372709) | [Octocode](https://appshunter.io/developer/1896334577) |

## What reviewers say

### Model Colors

[App page](https://appshunter.io/ios/app/model-colors/id1200319954)

This app helps hobbyists manage their paint collections for models. Track colors you own, colors you need, and easily share lists. Find similar colors and organize them into custom lists for different projects.

**Highlights:** Track owned and needed paint colors, Browse over 40,000 colors from various brands, Share color lists via email and messaging, Set favorite colors for quick access, Find similar colors using standards or calculations, Create custom color lists for projects

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month subscription | $0.99 | per month |
| 3 month subscription | $1.99 | per 3 months |
| 6 month subscription | $3.49 | per 6 months |
| 1 year subscription | $5.99 | per year |


### Octonium

[App page](https://appshunter.io/ios/app/octonium/id6796736984)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Octonium Premium Monthly | $3.99 | per month |
| Octonium Premium Yearly | $44.99 | per year |


## Frequently asked questions

### Is Model Colors free?

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

### Is Octonium free?

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

### Do Model Colors or Octonium have ads?

Neither Model Colors nor Octonium shows ads.

### Which is updated more often, Model Colors or Octonium?

Model Colors ships an update monthly, and Octonium every 5 days. Most recently, Model Colors was updated on October 10, 2026 and Octonium on October 8, 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.*