# VATRER vs SUTuner

The clearest difference is price: VATRER at Free against SUTuner's $9.99. VATRER also leads on ratings volume (22 vs 1) and iOS requirement (13.0 vs 17.0). SUTuner's advantage is rating (5.0 vs 2.5). On ads, in-app purchases and device support there is nothing between them.

VATRER is free to download; SUTuner costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SUTuner holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: VATRER has 22 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | VATRER | SUTuner |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [2.5 (22 ratings)](https://appshunter.io/ios/app/vatrer/id1641200046/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sutuner/id6801878820/reviews)** |
| Number of ratings | **22** | 1 |
| Positive reviews | 29.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | **Free** | Paid |
| Size | 32 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [桂玲 秦](https://appshunter.io/developer/1739192081) | [Skunk River Restorations, LLC](https://appshunter.io/developer/1895639103) |

## What reviewers say

### VATRER

[App page](https://appshunter.io/ios/app/vatrer/id1641200046)

Monitor your battery's vital statistics wirelessly. View temperature, power, voltage, current, production date, and charge/discharge cycles. Get estimates for full charge and usable time during charging and discharging.

**Highlights:** Bluetooth battery connection, Temperature monitoring, Power, voltage, and current display, Production date tracking, Charge and discharge cycle count, Full charge and usable time estimates

**Features:** macOS Compatibility

**In-app purchases:** none


### SUTuner

[App page](https://appshunter.io/ios/app/sutuner/id6801878820)

This app helps you find and tune SU carburetors by replacing traditional spreadsheets with a digital tool. It allows you to match needles based on desired diameters, adjust specific regions for richer or leaner performance, and compare needle profiles visually. It also includes a reference for factory applications and the ability to import dyno logs.

**Highlights:** Needle matching by diameter, Region-specific tuning (richer/leaner), Overlay needle comparison charts, Factory vehicle application reference, Dyno AFR log import and analysis, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is VATRER free?

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

### Is SUTuner free?

SUTuner costs $9.99, with no in-app purchases.

### Which has better reviews, VATRER or SUTuner?

SUTuner is rated higher. VATRER averages 2.5 out of 5 from 22 ratings, while SUTuner averages 5.0 from 1 ratings.

### Do VATRER or SUTuner have ads?

Neither VATRER nor SUTuner shows ads.

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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.*