# ASCII Converter++ vs ThinkDiag+

The clearest difference is rating: ThinkDiag+ at 4.5 against ASCII Converter++'s 3.0. ThinkDiag+ also leads on review sentiment (74% vs 33%) and in-app purchases (none vs 1). ASCII Converter++'s advantage is iOS requirement (9.0 vs 12.0). On price, update cadence, monetization model and device support there is nothing between them.

Both are free to download. ASCII Converter++ sells 1 one-off in-app purchase. ThinkDiag+ asks for nothing beyond the download.

ThinkDiag+ holds the better App Store score, 4.5 against 3.0. 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: 33% of ASCII Converter++'s written reviews are positive against 74% of ThinkDiag+'s.

ASCII Converter++ ships an update every 2 weeks, ThinkDiag+ every 3 weeks. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ASCII Converter++ | ThinkDiag+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/ascii-converter-plus-plus/id1286627577/reviews) | **[4.5 (4.4K ratings)](https://appshunter.io/ios/app/thinkdiag-plus/id1483420979/reviews)** |
| Number of ratings | 4 | **4.4K** |
| Positive reviews | 33.3% of reviews | **74.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 23 MB | 539 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Dai Tran](https://appshunter.io/developer/1283175238) | [THINKCAR INC](https://appshunter.io/developer/1464847379) |

## What reviewers say

### ASCII Converter++

[App page](https://appshunter.io/ios/app/ascii-converter-plus-plus/id1286627577)

Easily convert text to various code formats like decimal, binary, octal, and hexadecimal, or convert codes back to text. This lightweight utility features a modern interface with theme options and provides instant results for studying, secret messaging, or research.

**Highlights:** Text to ASCII conversion, ASCII to text conversion, Binary, octal, hexadecimal support, Lightweight and fast performance, Modern interface with theme options, Instant conversion results

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ASCII Converter | $0.99 | one-time |


### 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


## Frequently asked questions

### Is ASCII Converter++ free?

ASCII Converter++ is free to download, with in-app purchases available.

### Is ThinkDiag+ free?

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

### Which has better reviews, ASCII Converter++ or ThinkDiag+?

ThinkDiag+ is rated higher. ASCII Converter++ averages 3.0 out of 5 from 4 ratings, while ThinkDiag+ averages 4.5 from 4.4K ratings.

### Do ASCII Converter++ or ThinkDiag+ have ads?

ASCII Converter++ shows ads; ThinkDiag+ does not.

### Which is updated more often, ASCII Converter++ or ThinkDiag+?

ASCII Converter++ ships an update every 2 weeks, and ThinkDiag+ every 3 weeks. Most recently, ASCII Converter++ was updated on October 11, 2026 and ThinkDiag+ on October 24, 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.*