250+ iOS apps & games curated and reviewed
RainbowSifter is the household name in rainbowsifter, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free was $0.99 | 5.0★ (1) | — | No | Aug 2026 | |
| 2 |  | Free | 4.8★ (16) | No | No | May 2026 | |
| 3 |  | Free | 4.3★ (539) | Yes | Yes | Sep 2026 | |
| 4 |  | Free | — | No | Yes | Sep 2026 | |
| 5 |  | Free | 4.5★ (505K) | Yes | Yes | Sep 2026 | |
| 6 |  | Free | 4.8★ (345) | No | Yes | Sep 2026 | |
| 7 |  | Free | 4.7★ (137) | Yes | Yes | Sep 2026 | |
| 8 |  | Free | 5.0★ (5) | No | Yes | Sep 2026 |
A color-matching puzzle game where players select six primary rainbow colors from an expanding selection. Drag colors to a target to build your rainbow. Long-press the target for additional options.
This tool allows creative professionals to blend colors using their iPhone camera. It generates custom color diagrams and archives them for future use, providing RGB, CMYK, or HEX values for each color.
Create and discover new colors with this app. Mix existing colors to achieve desired shades, extract colors from your photos, and access an extensive color library. Save and share your custom palettes.
