# PowerVision 4 — Dynojet Research Inc. > Motorcycle engine tuning and data logging app with ECU flashing capabilities. (iPhone/iPad app by Dynojet.) - Source: https://appshunter.io/ios/app/powervision-4/id1559102553 (this page in markdown: same URL + `.md`) - Developer: [Dynojet](https://appshunter.io/developer/686107623) - Category: Utilities, Entertainment - Price: Free with in-app purchases - Rating: 4.90/5 from 308 App Store ratings · 162 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 94 MB - Languages: American English - Released: 2022-01-03 - Data updated: 2026-09-03 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/powervision-4/id1559102553/reviews.md ## What is PowerVision 4? 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 ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Universal Token | $10.00 | one-time | | Universal Token (10x) | $100.00 | one-time | | Universal Token (5x) | $50.00 | 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 | | Universal Token (3x) | $30.00 | one-time | ## What do users think of PowerVision 4? Overall sentiment: positive **Pros** - 🚀 Easy to use - 👍 Intuitive app interface - 🚀 Fast tuning process - 👍 Excellent customer support - 🚀 Responsive bike performance - 👍 Straightforward installation - 🚀 Convenient Bluetooth connectivity **Cons** - 🐛 App crashes and connectivity issues - 🔍 Limited tune options - 🔍 Lacking advanced tuning features - 🐛 Inaccurate sensor readings - 🔍 Clunky gauge operation **Commonly reported bugs** - App crashes when using diagnostic functions - Bluetooth disconnects during tuning process - Sensor readings not updating correctly - Tune flashing fails intermittently **Most 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 ## Recent user reviews (10 of 162) All indexed reviews: https://appshunter.io/ios/app/powervision-4/id1559102553/reviews.md ### 4/5 — Great app! *2026-08-17* Great app for the most part. Seems to loose connection a lot. Using with no other apps connected to or using Bluetooth. Wish there were better controls for setting gauge temperature values. I have had difficulty setting custom color range values. Other than that, it’s a solid app! ### 5/5 — Fast and smooth *2026-08-17* Bike is more responsive and smooth when shifting gears Installation was easy and straightforward. Had to we downloaded the app a couple of times but work like a charm once it was installed.(bad WiFi while I downloading the app.) ### 5/5 — Worth every penny and moment *2026-08-09* Super intuitive had a few issues worked with support. Everyone has been super, super supportive and helpful and responsive and now I am TUNED!!! ### 5/5 — Pricey but Great *2026-08-08* Easy informed install and just as easy flash tune after saving the standard ecu set up for going back if you need to sell the bike without the upgrades. ### 5/5 — First Tune *2026-07-18* Process could not have been easier. Fast shipping, tunes were available the next day. installation was simple. Took less than 15 minutes. ### 5/5 — New to Dynojet *2026-07-17* Watched all the free Dynojet University videos, so when it arrived it was super easy to grab tune and flash the ECM. Road glide seems to be running slot better, with a whole lot more pep. Going to keep it as is for a while and decide whether or not to fine tune with Auto tune. ### 5/5 — Great Device and App *2026-07-01, version 4.10.3* This has really helped with optimizing performance and gaining visibility into what is going on with my bike! ### 5/5 — Huge change! *2026-06-27* Woke the bike up immediately. Very easy to use as long as you follow the instructions. Changed the performance and the sound. Feels like a new bike! ### 5/5 — Pan am *2026-06-26* I purchased the Power Vision 4 from the reviews. I read it’s a great tuner because of the fact that I had to purchase a tune from fuel Moto when fuel Moto sent me the Tune I connected my phone via Bluetooth and the tune was already on my Power Vision 4 and all I had to do was flash and download. I do recommend this tuner. ### 5/5 — Amazing! *2026-06-24, version 4.10.3* Love it! ## Frequently asked questions about PowerVision 4 ### What does the Power Vision 4 app do? The Power Vision 4 app, when used with the PV4 device, allows you to control your motorcycle's engine. You can flash pre-loaded or custom tunes to your bike's ECU, record engine data, and read or clear diagnostic trouble codes. ### How do I get started with Power Vision 4? To get started, you'll need the pocket-sized PV4 device and the app. Create an account, select your desired tune, and flash it to your bike's ECU. The process requires no complex setup and is designed to be quick and easy. ### Is Power Vision 4 free to use? The app itself is free to download and use for basic functions like accessing tunes and data logging. However, the Power Vision 4 device is a required hardware purchase, and licenses are needed for each additional bike you wish to tune beyond the first. ### What kind of motorcycles is Power Vision 4 compatible with? The app is designed for motorcycle engine tuning and offers features like Autotune modes specifically for HD motorcycles. It also mentions compatibility with dynamometers for advanced users and diagnostics. ### Can I return my bike to its original settings? Yes, you can return your bike to its original factory tune at any time. Your original tune is safely backed up to the cloud and stored on your phone, ensuring you can revert to stock settings easily. ## Version history (last 5 releases) ### 5.2.1 — 2026-08-24 - Active Tests/Service Routines screens now have a blurb at the top for guidance/context, and better information on error - Diagnostics view should now be allowed on ECUs where it was blocked previously due to third party incompatibility detection - Subject line of "Send Diag Logs" improved for context (Account-linked email address in title to cover the cases where sender acct != dynojet account) - Some dialogs in landscape could have text cut off and not be scrollable, fixed. - Various bugfixes ### 5.2.0 — 2026-08-20 - Live Activity tile/Dynamic Island support (when app is backgrounded) - Dedicated landscape layouts for iPhone - Biometric login support - More comprehensive and useful diagnostic log contents - Various bugfixes ### 4.10.4 — 2026-07-02 -Some ECUs weren't showing "Use with Target Tune" button when they should've been, and some TT files weren't being prepped properly before flashing, fixed. ### 4.10.3 — 2026-06-09 Fixed a bug where live battery warning dialog was not scrollable when text size was turned up on OS. Affected Harley 2023.5+ install/flash procedures. ### 4.10.2 — 2026-06-04 - Harley-Davidson software-level crossflashing for 2021+ ECUs - Various bugfixes to include gauges crashing on iPad, and login crashing when editing password ## Apps similar to PowerVision 4 | App | Rating | Price | Category | | --- | --- | --- | --- | | [5150 Whips](https://appshunter.io/ios/app/5150-whips/id6499282241) | 1.6 (10) | Free | Utilities | | [RF Connect](https://appshunter.io/ios/app/rf-connect/id1445769139) | 2.3 (3) | Free | Utilities | | [Dakota Digital](https://appshunter.io/ios/app/dakota-digital/id1444935257) | 3.1 (49) | Free | Utilities | | [Sena Motorcycles](https://appshunter.io/ios/app/sena-motorcycles/id1575310271) | 2.1 (125) | Free | Utilities | | [Screamin' Eagle Street Tuner](https://appshunter.io/ios/app/screamin-eagle-street-tuner/id1642944755) | 1.7 (71) | Free | Utilities | | [Fuelpak FP4](https://appshunter.io/ios/app/fuelpak-fp4/id1513978426) | 1.8 (54) | Free | Utilities | ## More apps by Dynojet - [Power Commander Delta](https://appshunter.io/ios/app/power-commander-delta/id6749016421) All apps by Dynojet: https://appshunter.io/developer/686107623 ## Related topics [dynojet](https://appshunter.io/ios/topics/dynojet) · [ecu tuning](https://appshunter.io/ios/topics/ecu-tuning) · [dynojet power vision 4](https://appshunter.io/ios/topics/dynojet-power-vision-4) · [dynojet pv4](https://appshunter.io/ios/topics/dynojet-pv4) · [dynojet power](https://appshunter.io/ios/topics/dynojet-power) · [ebike tuner](https://appshunter.io/ios/topics/ebike-tuner) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*