# Only 1 color per line vs Stack Puzzle Dash

The clearest difference is in-app purchases: Stack Puzzle Dash at none against Only 1 color per line's 6. Stack Puzzle Dash also leads on ads (none vs shown). Only 1 color per line's advantage is update cadence (every 17 months vs every 62 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Only 1 color per line sells 6 one-off in-app purchases. Stack Puzzle Dash asks for nothing beyond the download.

Only 1 color per line ships an update every 17 months, Stack Puzzle Dash every 62 months. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Only 1 color per line | Stack Puzzle Dash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/only-1-color-per-line/id1436566204/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 17 months** | Every 62 months |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 235 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PLAYTOUCH](https://appshunter.io/developer/608330754) | [Said Lamaarague](https://appshunter.io/developer/1539332700) |

## What reviewers say

### Only 1 color per line

[App page](https://appshunter.io/ios/app/only-1-color-per-line/id1436566204)

A logic puzzle game where players fill a grid with colors. The rule is simple: each color can only appear once per line. Test your logic and color-filling skills.

**Highlights:** Grid filling puzzle, Single color per line rule, Logic-based gameplay, Sudoku-like challenges, Color matching

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 35 hints | $0.99 | one-time |
| 15 magic hints | $0.99 | one-time |
| 80 hints | $0.99 | one-time |
| 300 hints | $1.99 | one-time |
| Remove all ADS from the game | $1.99 | one-time |
| 700 hints | $3.99 | one-time |


### Stack Puzzle Dash

[App page](https://appshunter.io/ios/app/stack-puzzle-dash/id1546718987)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Only 1 color per line free?

Only 1 color per line is free to download, with in-app purchases available.

### Is Stack Puzzle Dash free?

Stack Puzzle Dash is free to download, with no in-app purchases.

### Do Only 1 color per line or Stack Puzzle Dash have ads?

Only 1 color per line shows ads; Stack Puzzle Dash does not.

### Which is updated more often, Only 1 color per line or Stack Puzzle Dash?

Only 1 color per line ships an update every 17 months, and Stack Puzzle Dash every 62 months. Most recently, Only 1 color per line was updated on October 23, 2026 and Stack Puzzle Dash on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*