# Screamin' Eagle Street Tuner

> Harley-Davidson engine tuning and data management app. (iPhone/iPad app by Harley-Davidson Motor Company.)

- Source: https://appshunter.io/ios/app/screamin-eagle-street-tuner/id1642944755 (this page in markdown: same URL + `.md`)
- Developer: [Harley-Davidson Motor Company](https://appshunter.io/developer/428393873)
- Category: Utilities
- Price: Free
- Rating: 1.70/5 from 71 App Store ratings · 143 written reviews indexed
- Age rating: 17+
- Requires: iOS 15.0 · 175 MB
- Released: 2023-03-20
- Data updated: 2026-09-03
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/screamin-eagle-street-tuner/id1642944755/reviews.md

## What is Screamin' Eagle Street Tuner?

The Screamin' Eagle Street Tuner App is for use exclusively with the Screamin’ Eagle® Pro Street Tuner Bluetooth communication module that is sold as an accessory for select Harley-Davidson® models. 

The Screamin’ Eagle® Street Tuner App is designed to simplify management of engine operating parameters as performance modifications are made. Once the Tuner hardware module is installed, this app allows you to upload the latest Engine Control Module (ECM) calibrations to match your bike’s state-of-tune or perform a Smart Tune session to tailor the base calibration to your custom ride.

• Download Screamin’ Eagle® calibrations from a vast calibration library
• Perform a Smart Tune session* to tailor the calibration
• Store run-time data
• View performance gauges and vehicle data
• View and clear diagnostics functions

*Smart Tune not available in all markets.

## Key features

- Upload engine calibrations
- Perform Smart Tune sessions
- Store run-time data
- View performance gauges
- View diagnostics

## What do users think of Screamin' Eagle Street Tuner?

Overall sentiment: negative

**Pros**

- 🚀 Improved performance
- 👍 Works well when it's working
- 🚀 Fast and crisp tuning

**Cons**

- 🐛 Constant crashing and disconnecting issues
- 🐛 Buggy and unstable app
- 🐛 Unreliable Bluetooth connectivity
- 🐛 Fails to save recordings and tunes
- 🐛 Compatibility issues with newer bike models
- 🐛 Frequent error messages

**Commonly reported bugs**

- App crashes when trying to do smart tune or view data
- Fails to connect to tuner, saying it's paired with another device
- Tuner bricks the motorcycle after flashing a corrupted file
- Voltage error prevents smart tune from starting even with fully charged battery

**Most requested features**

- Add ability to turn on oil cooling fan, cool flow fan, and other accessories
- Integrate with Apple CarPlay
- Improve auto-tune functionality and reliability

## Recent user reviews (10 of 143)

All indexed reviews: https://appshunter.io/ios/app/screamin-eagle-street-tuner/id1642944755/reviews.md

### 2/5 — Doest work on iPhone

*2026-07-27*

I couldn’t get it working and had to go to the dealer .  He tried from my phone and also could not get it to tune.   They had to connect it to their computer to get the tune loaded.   I was told the app doest work on newer phones.

### 1/5 — Please fix bugs

*2026-07-25*

Please give us a location where we can updated on the performance of the app I hate to give bad reviews but I can never check DTC and the amount of errors I encounter while attempting to start the smart tune process and actually get passed downloading to bci part is unreal and time wasting

### 2/5 — Bugs bugs bugs

*2026-07-18*

Common Harley. Fix this. This thing is so buggy that it takes away the enjoyment of auto tuning. I am doing everything required: turn my Infocenter off, turn Bluetooth off on the bike…it still gets stuck every time. It takes multiple tries so get into auto tune session. Also, speedometer doesn’t work which is dangerous. I understand the rider aid being off but speedometer is important. I paid almost $500 for this thing. I would expect for it to work.

### 1/5 — Garbage

*2026-07-16*

Worst 400 dollars I’ve ever spent.  Won’t connect, and when it does I get a litany of errors.  Now it can’t read my VIN.  Time for a PV4!

### 1/5 — Frustrating

*2026-07-14*

It works after a lot of wrestling and retries.
Needs improvement.

### 1/5 — Absolute Trash

*2026-07-02*

The inconsistencies you will have in connectivity will frustrate you beyond belief.
Just take it in and have your system tuned or buy a better tuner.
Very disappointing but consistent with Harley continuing to create trash the last few years.

### 2/5 — App is slow and cuts in and out

*2026-07-02*

App is slow with Bluetooth connection and cuts in and out so often I just shut it off, even with a good wifi connection & Bluetooth and with bike sitting in my house garage   then tuning they say a couple minutes ha ! I would start the download process for the tune and have walk away keeping everything in close proximity and return after 30 minutes with out it being completely done , tried deleting app reinstalling, rebooting , at that point I’m frustrated and shut everything down ! Waste of money if you ask me !

### 3/5 — Works ok

*2026-06-07*

As far as simple tuning it works. Can be a little glitchy. It for sure works better on iPhone (as does most everything on Harley I’m finding).

### 5/5 — Decent app

*2026-06-06*

Overall it works well. I was able to tune my bike very quickly and everything went very smoothly. The custom gauge screen is very nice to have as my bike is a soft standard and has limited gauges. The app UI is a little dated and not the best looking, but it does the job just fine.

### 2/5 — Absolutely nothing positive to say

*2026-06-03*

Well on a new touring bike one have to turn off infotainment just to be able to connect to the tuner but even when you connect it can’t do basic functions like read error codes; when you try you just greeted with a pop up “something went wrong”. Once the warranty is up SEPST with that app goes to garbage bin.

## Frequently asked questions about Screamin' Eagle Street Tuner

### What does the Screamin' Eagle Street Tuner app do?

The app works exclusively with the Screamin’ Eagle Pro Street Tuner Bluetooth module for select Harley-Davidson models. It allows you to manage engine operating parameters, upload the latest ECM calibrations, and perform Smart Tune sessions to tailor your bike's tune to custom modifications.

### What are the key features of this app?

Key features include downloading Screamin’ Eagle calibrations from a library, performing Smart Tune sessions to tailor calibrations, storing run-time data, viewing performance gauges and vehicle data, and accessing diagnostics functions.

### Is this app free to use?

Based on the provided information, the app itself is free. However, it requires the Screamin’ Eagle Pro Street Tuner Bluetooth communication module, which is sold separately as an accessory for select Harley-Davidson models.

### What Harley-Davidson models is this app compatible with?

This app is designed for use exclusively with the Screamin’ Eagle Pro Street Tuner Bluetooth communication module, which is an accessory for select Harley-Davidson models. Specific model compatibility would be detailed by the module manufacturer.

### What is a Smart Tune session?

A Smart Tune session is a feature within the app that allows you to tailor the base engine calibration to your custom ride. This process helps optimize your bike's performance based on its specific modifications and state-of-tune. Note that Smart Tune may not be available in all markets.

## Version history (last 5 releases)

### 1.2.4 — 2026-07-27

Bug Fixes.

### 1.2.3 — 2026-07-21

bug fixes

### 1.2.2 — 2026-05-19

Bug fixes.

### 1.2.1 — 2026-02-19

Bug fixes.

### 1.2.0 — 2026-02-18

Bug Fixes.

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## More apps by Harley-Davidson Motor Company

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- [Harley-Davidson](https://appshunter.io/ios/app/harley-davidson/id1292723595)
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All apps by Harley-Davidson Motor Company: https://appshunter.io/developer/428393873

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*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.*