# Code vs PowerVision 4

The clearest difference is rating: PowerVision 4 at 4.9 against Code's 4.0. PowerVision 4 also leads on ratings volume (310 vs 5). Code's advantage is iOS requirement (10.0 vs 15.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Code sells 1 one-off in-app purchase and PowerVision 4 sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PowerVision 4 holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: PowerVision 4 has 310 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 75% of Code's written reviews are positive against 78% of PowerVision 4's.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 1, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Code | PowerVision 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (5 ratings)](https://appshunter.io/ios/app/coderead/id1364698606/reviews) | **[4.9 (310 ratings)](https://appshunter.io/ios/app/powervision-4/id1559102553/reviews)** |
| Number of ratings | 5 | **310** |
| Positive reviews | 75.0% of reviews | **77.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 74 MB | 103 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vance & Hines](https://appshunter.io/developer/786747328) | [Dynojet](https://appshunter.io/developer/686107623) |

## What reviewers say

### Code

[App page](https://appshunter.io/ios/app/coderead/id1364698606)

Diagnose Harley-Davidson motorcycle issues directly from your iPhone. Access detailed code descriptions, view diagnostic videos, and monitor live sensor data. Save and retrieve your code history for advanced troubleshooting.

**Highlights:** Read Harley-Davidson trouble codes, Detailed code descriptions, Diagnostic videos, Live sensor data, Save/retrieve code history

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Code:READ Premium | $0.99 | one-time |


### 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


## Frequently asked questions

### Is Code free?

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

### Is PowerVision 4 free?

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

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

PowerVision 4 is rated higher. Code averages 4.0 out of 5 from 5 ratings, while PowerVision 4 averages 4.9 from 310 ratings.

### Do Code or PowerVision 4 have ads?

Neither Code nor PowerVision 4 shows ads.

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

Code ships an update monthly, and PowerVision 4 monthly. Most recently, Code was updated on October 1, 2026 and PowerVision 4 on October 12, 2026.

---

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