# GTS Colour vs Merge Dogs!

The clearest difference is price: Merge Dogs! at Free against GTS Colour's $0.99. Merge Dogs! also leads on update cadence (every 3 months vs every 22 months) and ratings volume (25K vs 1). GTS Colour's advantage is in-app purchases (none vs 6) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Merge Dogs! is free to download; GTS Colour costs $0.99 up front. Merge Dogs! sells 3 one-off in-app purchases. GTS Colour asks for nothing beyond the download.

GTS Colour holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Merge Dogs! has 25K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of GTS Colour's written reviews are positive against 79% of Merge Dogs!'s.

GTS Colour ships an update every 22 months, Merge Dogs! every 3 months. The most recent releases landed on October 20, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | GTS Colour | Merge Dogs! |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gts-colour/id1436732956/reviews)** | [4.8 (25K ratings)](https://appshunter.io/ios/app/merge-dogs/id1440363921/reviews) |
| Number of ratings | 1 | **25K** |
| Positive reviews | **100.0% of reviews** | 79.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 22 months | **Every 3 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 328 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Martin Handl](https://appshunter.io/developer/1202513077) | [Zepni Ltd.](https://appshunter.io/developer/1194430148) |

## What reviewers say

### GTS Colour

[App page](https://appshunter.io/ios/app/gts-colour/id1436732956)

This app helps car racing game players convert color codes (HEX/RGB) to HSV for in-game use. It allows users to save custom color palettes with car names or paint schemes, preventing loss of color figures when exiting menus.

**Highlights:** HEX/RGB to HSV color conversion, Save custom color palettes, Organize colors by car or paint scheme, Supports split screen on iPad, Individualize car colors

**Features:** Vision Pro support

**In-app purchases:** none


### Merge Dogs!

[App page](https://appshunter.io/ios/app/merge-dogs/id1440363921)

Combine puppies to create larger, faster dogs and build a champion racing team. Earn coins even when offline and discover over 50 unique breeds. Compete to become the ultimate dog racer.

**Highlights:** Merge dogs to upgrade, Build a dog racing team, Discover over 50 dog breeds, Idle earnings while offline, Win dog races, Earn money

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2X | $1.99 | one-time |
| 4X | $2.99 | one-time |
| 8X | $4.99 | one-time |

**What reviewers like**

- ⭐️ Best game ever
- 🚀 Barely any ads
- 💰 Free to play
- 🐶 Lots of cute dogs
- 🥰 Addictive and fun

**What reviewers complain about**

- 💢 Too many ads
- 🐛 Bugs and crashes
- 🔍 Disappearing dogs
- 🤔 Repetitive gameplay
- 🤷‍♀️ Confusing mechanics

**Reported bugs**

- Disappearing high-level dogs
- Crashes and freezes
- Inability to delete/remove dogs
- Ads not working as intended

**Requested features**

- More dog breeds
- New game modes
- Ability to name/customize dogs
- Offline progress saving
- Less intrusive ads


## Frequently asked questions

### Is GTS Colour free?

GTS Colour costs $0.99, with no in-app purchases.

### Is Merge Dogs! free?

Merge Dogs! is free to download, with in-app purchases available.

### Which has better reviews, GTS Colour or Merge Dogs!?

GTS Colour is rated higher. GTS Colour averages 5.0 out of 5 from 1 ratings, while Merge Dogs! averages 4.8 from 25K ratings.

### Do GTS Colour or Merge Dogs! have ads?

Merge Dogs! shows ads; GTS Colour does not.

### Which is updated more often, GTS Colour or Merge Dogs!?

GTS Colour ships an update every 22 months, and Merge Dogs! every 3 months. Most recently, GTS Colour was updated on October 20, 2026 and Merge Dogs! on October 30, 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.*