# Tune Delivery Network (TDN) — For RTD+ and other TDN devices

> App to receive custom vehicle tunes from a tuner via TDN devices. (iPhone/iPad app by HP Tuners LLC.)

- Source: https://appshunter.io/ios/app/tune-delivery-network-tdn/id1590560864 (this page in markdown: same URL + `.md`)
- Developer: [HP Tuners LLC](https://appshunter.io/developer/1767627066)
- Category: Utilities
- Price: Free
- Rating: 2.50/5 from 26 App Store ratings · 158 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.1 · 61 MB
- Languages: American English
- Released: 2021-11-01
- Data updated: 2026-08-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/tune-delivery-network-tdn/id1590560864/reviews.md

## What is Tune Delivery Network (TDN)?

The Tune Delivery Network app enables your TDN tuner to send you their tunes for your vehicle. An HP Tuners RTD+, MPVI3, MPVI2+, or other TDN-compatible delivery device is required.

Please note that this app is designed for users who have a relationship with a tuner that is part of the TDN system, and is not intended as a solution for self-tuners or non-TDN tuners.

## Key features

- Receive custom vehicle tunes
- Works with TDN devices
- Direct tune delivery
- Requires compatible hardware

## What do users think of Tune Delivery Network (TDN)?

Overall sentiment: negative

**Pros**

- 🚀 Flashing tunes fast and easy
- 🚀 Convenient for tuning without a Windows PC
- 👍 Great for remote tuning and diagnostics
- 👍 Works well when tuner sends file

**Cons**

- 🐛 Constant connectivity issues
- 🐛 Crashes and freezes frequently
- 🐛 Glitchy and inconsistent performance
- 🐛 Bluetooth disconnection problems
- 🐛 Sync and file transfer issues
- 🐛 Compatibility problems with newer iOS versions

**Commonly reported bugs**

- App crashes when trying to read/clear codes or connect to device
- Fails to load tunes or read vehicle data
- Bluetooth connectivity issues prevent basic functions
- Sync and file transfer problems

**Most requested features**

- Allow uploading tunes from tuner for personal use
- Add basic tuning functions like KAM reset and crank relearn
- Improve data log viewing and management capabilities

## Recent user reviews (10 of 158)

All indexed reviews: https://appshunter.io/ios/app/tune-delivery-network-tdn/id1590560864/reviews.md

### 3/5 — Logs me out too much

*2026-08-17*

App works fine it just logs me out every other time I open it.

**Developer response:** We apologize for the login issues you've been experiencing and thank you for your feedback.  We will look further into this.

### 1/5 — Don’t use this app yet.

*2026-08-02*

Using the app crashed my device, I’ve also read that other users have experienced the same problem. But I can say that HP Tuners have responded and are actively taking care of the issue.

**Developer response:** Sorry to hear you are having troubles with the ap.  In version 2.1.4 updates were included to alleviate crashing events reported by some users.

If you can provide an Infolog for tech support (tools>help>gather Infolog for support) we can look further into this issue.  If you can also provide details on the actions you were performing when the crash occurred that will be helpful as well. 


Please include your nickname from this review in the support request to ensure we can correlate you issue with this submission

### 1/5 — The Worst Part of My Job

*2026-06-16*

If I could give 0 stars I would. It’s unbelievable to me that HP Tuners forces me to use TDN to tune some car combos and it just doesn’t work more than half the time. On top of that they have the slowest support system ever, I opened a ticket 14 days ago and have gotten 2 replies, both asking for info I provided when I originally opened the ticket. I never write reviews for anything but it’s honestly that bad.

### 1/5 — Connection issues with multiple phone and cars

*2026-05-21*

I want to love this app because I love HP but this slows me down so much fighting connection issues.

### 1/5 — App Crashing

*2026-05-13*

App now crashing on opening after IOS upgrade to 24.5. Please resolve soonest!!!!!

### 1/5 — Rip off

*2026-04-20*

Total garbage product. Useless support. Stay away from the RTD, get the MPVI instead! You’ve been warned…

### 2/5 — Terrible connection

*2026-04-03*

I honestly hate this app, it’s easier to use a computer. I have sync errors 24/7, it logged me out and will not let me log back in, and I cannot upload any files. Yes it’s connected to the RTD, and yes my internet is stable. It will let me log in on the HP tuners website, but the app won’t do anything when I log in. Just keeps saying log in.

### 1/5 — Worked great once

*2026-03-17*

Worked great for 1 week. Now the app is clunky as hell and won’t connect to my tuner. Nice.

### 4/5 — Wont even read my vehicle

*2026-02-01*

At first it wasn’t reading my vehicle in the app, once I switched over to the pro version all functions worked flawlessly.

### 5/5 — Love It!

*2026-01-27*

I love this TDN app! It makes flashing a tune from a tuner, data logging, and reading & clearing DTC’s fast and easy!!!

## Frequently asked questions about Tune Delivery Network (TDN)

### What does the Tune Delivery Network app do?

The Tune Delivery Network app allows you to receive custom performance tunes for your vehicle directly from your tuner. It acts as a conduit to transfer these tuning files to your compatible TDN delivery device.

### What hardware do I need to use this app?

You will need a TDN-compatible delivery device, such as an HP Tuners RTD+, MPVI3, or MPVI2+. This hardware is essential for the app to function and receive tunes.

### Who is this app intended for?

This app is specifically designed for individuals who have an established relationship with a tuner that is part of the Tune Delivery Network (TDN) system. It is not intended for self-tuners or those using non-TDN tuners.

### Is this app free to use?

Based on the provided information, the app itself is free to download and use. However, it requires a compatible TDN delivery device and a relationship with a TDN tuner, which may involve separate costs.

## Version history (last 5 releases)

### 2.1.4 — 2026-07-24

Fixed some issues with processing tunes.

### 2.1.3 — 2026-07-03

Hotfix for crash issue during vehicle idenification.

### 2.1.2 — 2026-06-29

Fixed an issue that made Bluetooth operations take longer. Also several misc. UI improvements and fixes.

### 2.1 — 2026-05-25

Background operations are here! We've redesigned tune and log lists for better readability and faster usage. Also redesigned settings to be better organized and offer explanations of many of the included options and settings.

### 2.0.6 — 2026-03-30

Added support for Yamaha adapter cable.

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## More apps by HP Tuners LLC

- [TrackAddict Pro](https://appshunter.io/ios/app/trackaddict-pro/id490135959)
- [TrackAddict](https://appshunter.io/ios/app/trackaddict/id632355692)

All apps by HP Tuners LLC: https://appshunter.io/developer/1767627066

## Related topics

[tdn](https://appshunter.io/ios/topics/tdn) · [hp tuners](https://appshunter.io/ios/topics/hp-tuners) · [hp tuners tdn](https://appshunter.io/ios/topics/hp-tuners-tdn) · [tdn tuner](https://appshunter.io/ios/topics/tdn-tuner) · [hp tuners rtd](https://appshunter.io/ios/topics/hp-tuners-rtd) · [rtd tuner](https://appshunter.io/ios/topics/rtd-tuner) · [rtd](https://appshunter.io/ios/topics/rtd) · [tdr app](https://appshunter.io/ios/topics/tdr-app) · [ngenic tune](https://appshunter.io/ios/topics/ngenic-tune)

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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 2026-08-31.*