# PowerProbe Link vs GRBX

The clearest difference is review sentiment: GRBX at 100% against PowerProbe Link's 0%. GRBX also leads on rating (4.8 vs 3.5) and update cadence (every 5 days vs every 13 months). PowerProbe Link's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 15.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. GRBX sells 4 in-app purchases, starting at $4.99 per month. PowerProbe Link asks for nothing beyond the download.

GRBX holds the better App Store score, 4.8 against 3.5. Both are backed by a comparable volume of ratings — 4 and 6 respectively. Written reviews point the same way: 0% of PowerProbe Link's written reviews are positive against 100% of GRBX's.

PowerProbe Link ships an update every 13 months, GRBX every 5 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | PowerProbe Link | GRBX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (4 ratings)](https://appshunter.io/ios/app/powerprobe-link/id6476737385/reviews) | **[4.8 (6 ratings)](https://appshunter.io/ios/app/grbx-car-maintenance-tracker/id6761734462/reviews)** |
| Number of ratings | 4 | **6** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 5 days** |
| Monetization | **Free** | Ad-supported |
| Size | 4 MB | 6 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MGL APPA CORPORATION](https://appshunter.io/developer/1121102475) | [Gearbox Technologies LLC](https://appshunter.io/developer/1891160733) |

## What reviewers say

### PowerProbe Link

[App page](https://appshunter.io/ios/app/powerprobe-link/id6476737385)

This utility app connects to specific PowerProbe devices, enabling wireless data logging and remote monitoring. Users can download log data and export it to CSV files for analysis and reporting.

**Highlights:** Wireless data logging, Remote measurement monitoring, Log data download, CSV data export, Supports PowerProbe IT500, Supports DRAW MONITOR

**Features:** macOS Compatibility

**In-app purchases:** none


### GRBX

[App page](https://appshunter.io/ios/app/grbx-car-maintenance-tracker/id6761734462)

This tool helps you proactively manage vehicle ownership by tracking maintenance history and providing predictive insights. It evolves with your car, offering advanced analytics and an AI assistant to optimize your vehicle's lifespan and your decision-making.

**Highlights:** Predictive maintenance insights, Vehicle maintenance history tracking, Advanced analytics, Document organization, AI assistant for idea generation, Proactive vehicle care strategy

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GRBX Pro | $4.99 | per month |
| GRBX Family | $9.99 | per month |
| GRBX Pro Annual | $49.99 | per year |
| GRBX Family Annual | $99.99 | per year |


## Frequently asked questions

### Is PowerProbe Link free?

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

### Is GRBX free?

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

### Which has better reviews, PowerProbe Link or GRBX?

GRBX is rated higher. PowerProbe Link averages 3.5 out of 5 from 4 ratings, while GRBX averages 4.8 from 6 ratings.

### Do PowerProbe Link or GRBX have ads?

Neither PowerProbe Link nor GRBX shows ads.

### Which is updated more often, PowerProbe Link or GRBX?

PowerProbe Link ships an update every 13 months, and GRBX every 5 days. Most recently, PowerProbe Link was updated on October 24, 2026 and GRBX 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.*