# RepairSolutions2 vs OTR Diagnostics

The clearest difference is rating: RepairSolutions2 at 4.8 against OTR Diagnostics's 4.0. RepairSolutions2 also leads on review sentiment (96% vs 55%) and ratings volume (38K vs 99). OTR Diagnostics's advantage is in-app purchases (none vs 3). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. RepairSolutions2 sells 3 one-off in-app purchases. OTR Diagnostics asks for nothing beyond the download.

RepairSolutions2 holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: RepairSolutions2 has 38K ratings behind it against 99, so its average is the more settled of the two. Written reviews point the same way: 96% of RepairSolutions2's written reviews are positive against 55% of OTR Diagnostics's.

RepairSolutions2 ships an update every 3 weeks, OTR Diagnostics fortnightly. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | RepairSolutions2 | OTR Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (38K ratings)](https://appshunter.io/ios/app/repairsolutions2/id1462864362/reviews)** | [4.0 (99 ratings)](https://appshunter.io/ios/app/otr-diagnostics/id1508165885/reviews) |
| Number of ratings | **38K** | 99 |
| Positive reviews | **96.2% of reviews** | 55.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#179** | — |
| Size | 192 MB | 266 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Innova Electronic](https://appshunter.io/developer/660115772) | [OTR Performance](https://appshunter.io/developer/1508165884) |

## What reviewers say

### RepairSolutions2

[App page](https://appshunter.io/ios/app/repairsolutions2/id1462864362)

**Currently charting:** #179 Top Free · Utilities (US App Store)

This app provides comprehensive vehicle care and repair information for car and truck owners, DIYers, and technicians. It offers diagnostic capabilities with compatible OBD2 scanners and a vast database of verified fixes from ASE Master Technicians. Users can also access free vehicle maintenance information and schedule repairs.

**Highlights:** OBD2 scanner integration, Verified repair database, Diagnostic trouble code definitions, Scheduled maintenance tracking, Parts identification and purchase, Live data feed, Repair scheduling

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vehicle History Report | $9.99 | one-time |
| 1-Month MOTOR Report for 1 VIN | $14.99 | one-time |
| 1-Year MOTOR Report for 1 VIN | $29.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient and fast
- 💡 Helpful diagnostic features
- 🤑 Good value for money
- 🔧 Useful for DIY mechanics

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔍 Limited functionality
- 🕰️ Slow app performance
- 🔋 Firmware update process

**Reported bugs**

- Unable to generate reports
- Bluetooth connection problems
- Firmware update failures

**Requested features**

- Ability to save vehicle history
- Live data monitoring improvements
- Offline report viewing
- Expanded diagnostic capabilities


### OTR Diagnostics

[App page](https://appshunter.io/ios/app/otr-diagnostics/id1508165885)

This app helps heavy-duty truck owners diagnose and resolve common issues like fault codes, regen problems, and derates. It provides plain-language explanations of error codes, allows for bi-directional commands to fix issues, and monitors live truck data to prevent downtime.

**Highlights:** AI-powered fault code explanation, Bi-directional commands for repairs, Reset active/inactive fault codes, Run forced DPF/SCR regens, Live data monitoring, Fault code history tracking

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

**In-app purchases:** none

**What reviewers like**

- 💰 Saves money on repairs
- 🛠️ Clears fault codes
- 🔄 Performs forced regens
- ✅ Works with various engines
- 👍 Easy to use

**What reviewers complain about**

- 💸 Overpriced
- 🐛 Buggy and unstable app
- 🔌 Frequent Bluetooth disconnects
- 📉 Updates cause problems
- ❌ Some features disappeared after updates

**Reported bugs**

- App constantly disconnects from device
- Generic code option disappeared
- Forced regen is no longer consistent
- AI assistant not working
- App asks to do things not available in app

**Requested features**

- Remember email address for login
- Allow offline functionality without data connection
- Add option to change speed
- More detailed diagnostic information
- Allow basic subscription to work on multiple VINs


## Frequently asked questions

### Is RepairSolutions2 free?

RepairSolutions2 is free to download, with in-app purchases available.

### Is OTR Diagnostics free?

OTR Diagnostics is free to download, with no in-app purchases.

### Which has better reviews, RepairSolutions2 or OTR Diagnostics?

RepairSolutions2 is rated higher. RepairSolutions2 averages 4.8 out of 5 from 38K ratings, while OTR Diagnostics averages 4.0 from 99 ratings.

### Do RepairSolutions2 or OTR Diagnostics have ads?

Neither RepairSolutions2 nor OTR Diagnostics shows ads.

### Which is updated more often, RepairSolutions2 or OTR Diagnostics?

RepairSolutions2 ships an update every 3 weeks, and OTR Diagnostics fortnightly. Most recently, RepairSolutions2 was updated on September 24, 2026 and OTR Diagnostics on September 23, 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.*