FN Tuned vs Ediag
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FN Tuned
Enhance your vehicle's acceleration by eliminating electronic throttle lag. This app provides a quicker engine response, making your car feel more dynamic and powerful. Reclaim the responsiveness of older vehicles with modern technology.
- Eliminates throttle response delays
- Improves engine acceleration
- Restores responsive pedal feel
- Modernizes older car performance
- Offers anti-theft subscription
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FN Tuned is a throttle response controller that removes response delays on your electronic accelerator pedal. Effectively, it allows your engine to respond faster so your car can accelerate faster! You paid lots of money for a serious vehicle; when you press your gas pedal, it shouldn’t feel like you are pressing a sponge. Haven’t you ever noticed that older cars tend to be more responsive, before digital pedals? We’re giving you that response back! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ediag
Perform comprehensive vehicle diagnostics, including reading data flow, fault codes, and vehicle information. Generate professional diagnostic reports for major automobile manufacturers. Features one-key diagnosis and automatic VIN reading.
- Full-function diagnosis
- Read data flow
- Read/clear fault code
- Read vehicle information
- Automatic VIN reading
- Diagnostic reports
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Support full-function diagnosis, read data flow, read/clear fault code, read vehicle information. Select any vehicle diagnostic software, covering major automobile manufacturers.Support one-key diagnosis and automatic VIN reading. generate professional diagnostic reports.
Screenshots
Verdict
The clearest difference is in-app purchases: Ediag at none against FN Tuned's 2. Ediag also leads on rating (4.3 vs 3.9) and ratings volume (1.6K vs 8). On price, review sentiment, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. FN Tuned sells 2 in-app purchases, starting at $0.99 per month. Ediag asks for nothing beyond the download.
Ediag holds the better App Store score, 4.3 against 3.9. That said, the two scores are not equally well evidenced: Ediag has 1.6K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 25% of FN Tuned's written reviews are positive against 30% of Ediag's.
FN Tuned ships an update every 3 weeks, Ediag every 2 months. Both last shipped on November 3, 2026.
| Parameter | FN Tuned | Ediag |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (8 ratings) | 4.3 (1.6K ratings) — better |
| Positive reviews | 25.0% of reviews | 29.6% of reviews — better |
| Number of ratings | 8 | 1.6K — better |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 66 MB | 455 MB |
| Age rating | 4+ | 4+ |
| Developer | Vitalen Auto Performance Inc. | Shenzhen Kingbolen Electrics Technology Co., Ltd. |
Customer experience
FN Tuned
Ediag
Bugs and requests
FN Tuned
Not enough reviews yet to summarise bugs or requests.
Ediag
Reported bugs
12 issues- App crashes after latest update
- Activation fails with correct codes (used devices)
- Communication errors during diagnostics
- VIN finder doesn't work well for older cars
- First-day connection issues requiring account reset
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- Cannot clear all error codes completely
- Doesn't recognize 2023+ vehicle models
- Login validation errors after updates
- Slow code retrieval compared to competitors
- Device stops working unexpectedly
- Firmware update required for initial functionality
- Cannot identify common manufacturers automatically
Requested features
10 requests- Support for newer vehicle models (2023+)
- Better auto-identification for Ford and other manufacturers
- Language settings menu (Turkish language support mentioned)
- Ability to command multiple functions from same test screen
- Improved VIN finder for older vehicles (1990s-2000s)
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- Support for MG Siac models
- iOS/iPhone compatibility
- Clearer section titles and better documentation
- Ability to perform ABS bleeding on Chevy vehicles
- Support for Ford Galaxy vehicles
In-app purchases
FN Tuned
- Anti Theft Montly Subscription14 Days trial$0.991 Month
- Anti Theft Annual Subscription14 Days trial$9.991 Year
Ediag
No in-app purchases
