PowerVision 4 vs KEMIMOTO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PowerVision 4
Control your motorcycle's engine performance directly from your iPhone. Access hundreds of pre-made tunes or customize parameters for your specific setup. Record engine data, manage diagnostic codes, and perform advanced tests for optimal bike performance.
- Flash tunes to ECU
- Access vast tune database
- Record real-time engine data
- Read, review, and clear DTCs
- Autotune modes for HD motorcycles
- Dynamometer compatible
- Active tests for diagnostics
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Power Vision 4 from Dynojet Research Inc. combined with your iPhone puts you in control of your bike’s engine. Gain access to hundreds of different tunes for various aftermarket components and easily flash any of them to you bike’s ECU. Unbelievably quick and easy to use; make more power and torque with the push of a button. Advanced users can edit hundreds of individual engine parameters to build a tune that’s dialed in for their unique setup using Dynojet’s integrated cloud tune delivery system. With the PV4 App and our pocket-sized PV4 device you can: • Flash tunes to your ECU – no setup required, just create an account, select your tune, flash, and ride the ultimate ride. • Access to vast database of pre-loaded tunes for different configurations – no custom tuning required. • Easily download and manage pre-loaded and custom tunes. • Record real-time engine data and review in WinPEP 8 Data Center. • Read, review, clear, and share diagnostic trouble codes (DTC’s) with built-in descriptions. • Flash an unlimited number of bikes with one device.* • Use licenses from your Power Vision Classic with your Power Vision 4. • Return to stock at any time – your original, factory tune is safely backed up on the cloud and on your phone. • Optimized for remote-tuning. – Easily ride, record, and share data logs with your tuner for trouble-free custom tuning without a dynamometer. • Keep your ECU – The Power Vision 4 reprograms your bike without having to remove or mail-in the ECU. Just plug into the diagnostic connector and flash, it’s really that easy. • Autotune - Choose from three different Autotune modes to dial your HD motorcycle in the way that fits you best. • Dynamometer Compatible - Plug your PV4 directly into your Dynojet Dynamometer to view channels, flash, read diagnostic information, read RPM via OBD, and load control without an inductive pickup. • Flashes on HD motorcycles as fast as 12.75 seconds (select models) • Active Tests help diagnose problems on your HD - cycle the fuel pump, indicators, water pump, and many other components when troubleshooting engine or electrical issues. • Diagnostic Routines allow you to bleed the ABS system at home World class, US-based customer service from our team of motorcycle enthusiasts is also available to suggest the best tune, review data recordings, or assist in troubleshooting. Your ultimate ride awaits with Power Vision 4 – download the app and see how easy tuning can be! * First bike license included with purchase of Power Vision 4 device. Requires purchase of license for each additional bike DISCLAIMER: Not legal for sale or use in California
KEMIMOTO
Control various smart devices from a single application. Manage powersports soundbars, smart lighting, motorcycle batteries, and heated jackets remotely for an enhanced experience.
- Remote control for powersports soundbars
- Smart lighting management
- Moto battery monitoring
- Heated outdoor jacket control
- Manage all KEMIMOTO smart devices
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KEMIMOTO is an app to manage all kemimoto brand smart devices. remotelly control for powersports soundbar, smart lighting, moto battery, and heated outdoor jackets, Enjoy it and bring you extraordinary experience.
Screenshots
Verdict
The clearest difference is in-app purchases: KEMIMOTO at none against PowerVision 4's 8. PowerVision 4's advantage is review sentiment (78% vs 68%) and ratings volume (312 vs 92). On price, rating, 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. PowerVision 4 sells 8 one-off in-app purchases. KEMIMOTO asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for PowerVision 4 against 4.8 for KEMIMOTO. Both are backed by a comparable volume of ratings — 312 and 92 respectively. Written reviews are what separate them: 78% of PowerVision 4's written reviews are positive against 68% of KEMIMOTO's.
PowerVision 4 ships an update monthly, KEMIMOTO every 3 weeks. The most recent releases landed on November 13, 2026 and November 12, 2026 respectively.
| Parameter | PowerVision 4 | KEMIMOTO |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (312 ratings) — better | 4.8 (92 ratings) |
| Positive reviews | 77.9% of reviews — better | 67.9% of reviews |
| Number of ratings | 312 — better | 92 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 105 MB | 246 MB |
| Age rating | 4+ | 4+ |
| Developer | Dynojet | Guangzhou Shiyizhong Information Technology Co,. Ltd |
Customer experience
PowerVision 4
KEMIMOTO
Bugs and requests
PowerVision 4
Reported bugs
4 issues- App crashes when using diagnostic functions
- Bluetooth disconnects during tuning process
- Sensor readings not updating correctly
- Tune flashing fails intermittently
Requested features
5 requests- 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
KEMIMOTO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PowerVision 4
- Universal Token$10.00
- Universal Token (3x)$30.00
- Universal Token (5x)$50.00
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- Universal Token (10x)$100.00
- Universal Token (15x)$150.00
- Universal Token (20x)$200.00
- Universal Token (25x)$250.00
- Universal Token (30x)$300.00
KEMIMOTO
No in-app purchases








