# SimpleFFT vs Color Cauldron

The clearest difference is ads: Color Cauldron at none against SimpleFFT's shown. SimpleFFT's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. SimpleFFT sells 1 one-off in-app purchase and Color Cauldron sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SimpleFFT ships an update every 18 months, Color Cauldron every 13 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | SimpleFFT | Color Cauldron |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/color-cauldron/id6476171673/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 18 months | **Every 13 months** |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 4 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HIROFUMI MARUO](https://appshunter.io/developer/667820705) | [Hellish Creative](https://appshunter.io/developer/1726115744) |

## What reviewers say

### SimpleFFT

[App page](https://appshunter.io/ios/app/simplefft/id1239257017)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Functions | $0.49 | one-time |


### Color Cauldron

[App page](https://appshunter.io/ios/app/color-cauldron/id6476171673)

Generate stunning color palettes by describing their intended use. This AI-powered tool allows you to save, share, and discover unique color combinations, with home screen widgets for daily inspiration.

**Highlights:** AI-generated color palettes, Describe color usage for generation, Save and share palettes, Download palettes as images, Discover unique color names, Home screen widgets for inspiration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Color Cauldron+ | $2.99 | one-time |


## Frequently asked questions

### Is SimpleFFT free?

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

### Is Color Cauldron free?

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

### Do SimpleFFT or Color Cauldron have ads?

SimpleFFT shows ads; Color Cauldron does not.

### Which is updated more often, SimpleFFT or Color Cauldron?

SimpleFFT ships an update every 18 months, and Color Cauldron every 13 months. Most recently, SimpleFFT was updated on November 2, 2026 and Color Cauldron on November 4, 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.*