249+ iOS apps & games curated and reviewed
RainbowSifter is the household name in rainbowsifter, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (1) | — | No | Aug 2026 | |
| 2 |  | Free | 4.8★ (16) | No | No | May 2026 | |
| 3 |  | Free | 4.6★ (86K) | Yes | No | Oct 2026 | |
| 4 |  | Free | 4.7★ (137) | Yes | Yes | Oct 2026 | |
| 5 |  | Free | 5.0★ (5) | No | Yes | Sep 2026 | |
| 6 |  | Free | 4.8★ (345) | No | Yes | Oct 2026 | |
| 7 |  | Free | 3.9★ (34) | Yes | No | Aug 2026 | |
| 8 |  | Free | 5.0★ (2) | No | No | May 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.
Mix and match colors on a digital palette to recreate sample paintings. Score points by accurately matching colors and shapes, aiming for a perfect three-star rating on every level.
