# Torque Source vs PowerProbe

The clearest difference is rating: Torque Source at 3.1 against PowerProbe's 2.6. Torque Source also leads on update cadence (every 8 days vs every 4 months) and iOS requirement (7.0 vs 12.0). PowerProbe's advantage is review sentiment (50% vs 14%). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Torque Source holds the better App Store score, 3.1 against 2.6. Both are backed by a comparable volume of ratings — 16 and 7 respectively. Written reviews complicate that: 14% of Torque Source's written reviews are positive against 50% of PowerProbe's, so the app with the better star average is not the one people write more warmly about.

Torque Source ships an update every 8 days, PowerProbe every 4 months. The most recent releases landed on August 19, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Torque Source | PowerProbe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (16 ratings)](https://appshunter.io/ios/app/torque-source/id902056823/reviews)** | [2.6 (7 ratings)](https://appshunter.io/ios/app/powerprobe/id1643521445/reviews) |
| Number of ratings | **16** | 7 |
| Positive reviews | 14.3% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 4 months |
| Monetization | Free | Free |
| Size | 1 MB | 37 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Snap-on Inc.](https://appshunter.io/developer/501219324) | [MGL APPA CORPORATION](https://appshunter.io/developer/1121102475) |

## What reviewers say

### Torque Source

[App page](https://appshunter.io/ios/app/torque-source/id902056823)

This utility app assists torque wrench users with two essential calculators for unit conversion and adapter-based torque adjustments. It also provides helpful usage tips and links to additional resources.

**Highlights:** Torque unit conversion calculator, Torque wrench adapter adjustment calculator, Usage hints for torque wrenches, Links to Snap-on resources

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

**In-app purchases:** none


### PowerProbe

[App page](https://appshunter.io/ios/app/powerprobe/id1643521445)

This app connects to a circuit tester for advanced vehicle electrical diagnosis. It displays real-time readings, offers an oscilloscope mode for intuitive curve visualization, and provides diagnostic functions like voltmeter and resistance testing. Users can also save and share data, and access learning videos.

**Highlights:** Real-time circuit readings, Oscilloscope mode, DC and AC voltmeter, Resistance testing, Fuel-injector test mode, Data saving and sharing, EZ Learning videos

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Torque Source free?

Torque Source is free to download, with no in-app purchases.

### Is PowerProbe free?

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

### Which has better reviews, Torque Source or PowerProbe?

Torque Source is rated higher. Torque Source averages 3.1 out of 5 from 16 ratings, while PowerProbe averages 2.6 from 7 ratings.

### Do Torque Source or PowerProbe have ads?

Neither Torque Source nor PowerProbe shows ads.

### Which is updated more often, Torque Source or PowerProbe?

Torque Source ships an update every 8 days, and PowerProbe every 4 months. Most recently, Torque Source was updated on August 19, 2026 and PowerProbe on June 5, 2026.

---

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