# PowerVision 4 vs TuningBase

The clearest difference is in-app purchases: TuningBase at none against PowerVision 4's 8. TuningBase also leads on update cadence (every 2 weeks vs monthly). PowerVision 4's advantage is ratings volume (312 vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. PowerVision 4 sells 8 one-off in-app purchases. TuningBase asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for PowerVision 4 against 5.0 for TuningBase. That said, the two scores are not equally well evidenced: PowerVision 4 has 312 ratings behind it against 1, so its average is the more settled of the two.

PowerVision 4 ships an update monthly, TuningBase every 2 weeks. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | PowerVision 4 | TuningBase |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (312 ratings)](https://appshunter.io/ios/app/powervision-4/id1559102553/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tuningbase/id6753321902/reviews)** |
| Number of ratings | **312** | 1 |
| Positive reviews | 77.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 104 MB | 34 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Dynojet](https://appshunter.io/developer/686107623) | [Niko Holm](https://appshunter.io/developer/1843472333) |

## What reviewers say

### PowerVision 4

[App page](https://appshunter.io/ios/app/powervision-4/id1559102553)

Control your motorcycle's engine performance directly from your iPhone. Access hundreds of pre-loaded engine tunes or create custom ones. Easily flash tunes to your bike's ECU, monitor real-time engine data, and manage diagnostic trouble codes.

**Highlights:** Flash tunes to ECU, Access vast tune database, Record real-time engine data, Read/clear diagnostic codes, Remote tuning optimization, Autotune modes, Active tests for diagnostics

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Universal Token | $10.00 | one-time |
| Universal Token (3x) | $30.00 | one-time |
| Universal Token (5x) | $50.00 | one-time |
| Universal Token (10x) | $100.00 | one-time |
| Universal Token (15x) | $150.00 | one-time |
| Universal Token (20x) | $200.00 | one-time |
| Universal Token (25x) | $250.00 | one-time |
| Universal Token (30x) | $300.00 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Intuitive app interface
- 🚀 Fast tuning process
- 👍 Excellent customer support
- 🚀 Responsive bike performance

**What reviewers complain about**

- 🐛 App crashes and connectivity issues
- 🔍 Limited tune options
- 🔍 Lacking advanced tuning features
- 🐛 Inaccurate sensor readings
- 🔍 Clunky gauge operation

**Reported bugs**

- App crashes when using diagnostic functions
- Bluetooth disconnects during tuning process
- Sensor readings not updating correctly
- Tune flashing fails intermittently

**Requested features**

- Add more pre-loaded tune options
- Implement an auto-tune feature
- Improve data logging and cloud integration
- Expand support for wider range of bikes
- Enhance live sensor data display


### TuningBase

[App page](https://appshunter.io/ios/app/tuningbase/id6753321902)

Access a comprehensive mobile database for automotive professionals and tuners. Quickly find ECUs for any vehicle, view performance data, and look up error codes. Supports multiple languages and includes a performance calculator.

**Highlights:** ECU Search by vehicle details, Original and tuning performance data, Bosch Part Number Search, DTC Error Code lookup, HP to kW conversion calculator, Multilingual support

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

**In-app purchases:** none


## Frequently asked questions

### Is PowerVision 4 free?

PowerVision 4 is free to download, with in-app purchases available.

### Is TuningBase free?

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

### Which has better reviews, PowerVision 4 or TuningBase?

TuningBase is rated higher. PowerVision 4 averages 4.9 out of 5 from 312 ratings, while TuningBase averages 5.0 from 1 ratings.

### Do PowerVision 4 or TuningBase have ads?

Neither PowerVision 4 nor TuningBase shows ads.

### Which is updated more often, PowerVision 4 or TuningBase?

PowerVision 4 ships an update monthly, and TuningBase every 2 weeks. Most recently, PowerVision 4 was updated on October 23, 2026 and TuningBase on October 16, 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.*