# ThinkDiag+ vs ColorIgual

The clearest difference is review sentiment: ThinkDiag+ at 74% against ColorIgual's 0%. ThinkDiag+ also leads on rating (4.5 vs 3.5) and in-app purchases (none vs 2). ColorIgual's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. ColorIgual sells 2 in-app purchases, starting at $4.99 per month. ThinkDiag+ asks for nothing beyond the download.

ThinkDiag+ holds the better App Store score, 4.5 against 3.5. That said, the two scores are not equally well evidenced: ThinkDiag+ has 4.4K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 74% of ThinkDiag+'s written reviews are positive against 0% of ColorIgual's.

ThinkDiag+ ships an update every 3 weeks, ColorIgual every 9 days. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ThinkDiag+ | ColorIgual |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4.4K ratings)](https://appshunter.io/ios/app/thinkdiag-plus/id1483420979/reviews)** | [3.5 (4 ratings)](https://appshunter.io/ios/app/colorigual/id6745155019/reviews) |
| Number of ratings | **4.4K** | 4 |
| Positive reviews | **74.1% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 539 MB | 61 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [THINKCAR INC](https://appshunter.io/developer/1464847379) | [Christian Magana](https://appshunter.io/developer/1804978749) |

## What reviewers say

### ThinkDiag+

[App page](https://appshunter.io/ios/app/thinkdiag-plus/id1483420979)

This app provides professional-level vehicle diagnostics, offering features like reading/clearing fault codes, data flow analysis, and special maintenance functions. It supports a wide range of car brands and allows users to subscribe to specific diagnostic software. Connects via Bluetooth to your smartphone for intelligent vehicle analysis.

**Highlights:** OE-level diagnostic functions, Full OBD II diagnosis, Special maintenance functions, Supports 100+ vehicle brands, Automatic VIN reading, Professional diagnostic reports, In-app user community

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 🚀 Powerful diagnostic capabilities
- 🚀 Affordable price
- 🚀 Helpful customer support
- 🚀 Versatile for DIY and professionals

**What reviewers complain about**

- 🐛 Occasional crashes or freezes
- 🐛 Compatibility issues with certain vehicles
- 🔒 Concerns about annual subscription fees
- 🔒 Limited functionality on iOS devices

**Reported bugs**

- Failure to recognize VIN or vehicle information
- Inability to clear certain error codes
- Inconsistent performance across different devices

**Requested features**

- Improved user interface and navigation
- More detailed troubleshooting guides
- Expanded vehicle coverage and special functions
- Offline mode for diagnostics


### ColorIgual

[App page](https://appshunter.io/ios/app/colorigual/id6745155019)

This app helps automotive paint technicians and enthusiasts match car colors accurately. It allows users to store custom formulas, discover community-shared mixes, and use AI to detect colors from photos. Collaboration and offline access are also key features.

**Highlights:** Store custom paint formulas, Explore community formulas, AI color detection from photos, Share and collaborate on mixes, Offline access to formulas, Multilingual support (English, Spanish)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Car Color System | $4.99 | per month |
| Premium ColorIgual | $29.99 | per year |


## Frequently asked questions

### Is ThinkDiag+ free?

ThinkDiag+ is free to download, with no in-app purchases.

### Is ColorIgual free?

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

### Which has better reviews, ThinkDiag+ or ColorIgual?

ThinkDiag+ is rated higher. ThinkDiag+ averages 4.5 out of 5 from 4.4K ratings, while ColorIgual averages 3.5 from 4 ratings.

### Do ThinkDiag+ or ColorIgual have ads?

Neither ThinkDiag+ nor ColorIgual shows ads.

### Which is updated more often, ThinkDiag+ or ColorIgual?

ThinkDiag+ ships an update every 3 weeks, and ColorIgual every 9 days. Most recently, ThinkDiag+ was updated on October 21, 2026 and ColorIgual on October 10, 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.*