# Tune Delivery Network (TDN) vs SUTuner

The clearest difference is price: Tune Delivery Network (TDN) at Free against SUTuner's $9.99. Tune Delivery Network (TDN) also leads on ratings volume (38 vs 1) and iOS requirement (13.1 vs 17.0). SUTuner's advantage is rating (5.0 vs 2.4). On ads, in-app purchases and device support there is nothing between them.

Tune Delivery Network (TDN) is free to download; SUTuner costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SUTuner holds the better App Store score, 5.0 against 2.4. That said, the two scores are not equally well evidenced: Tune Delivery Network (TDN) has 38 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Tune Delivery Network (TDN) | SUTuner |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [2.4 (38 ratings)](https://appshunter.io/ios/app/tune-delivery-network-tdn/id1590560864/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sutuner/id6801878820/reviews)** |
| Number of ratings | **38** | 1 |
| Positive reviews | 14.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | **Free** | Paid |
| Size | 61 MB | 5 MB |
| Requires iOS | **13.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HP Tuners LLC](https://appshunter.io/developer/1767627066) | [Skunk River Restorations, LLC](https://appshunter.io/developer/1895639103) |

## What reviewers say

### Tune Delivery Network (TDN)

[App page](https://appshunter.io/ios/app/tune-delivery-network-tdn/id1590560864)

This application allows users to receive custom vehicle tunes from their tuner via a compatible TDN delivery device. It facilitates the transfer of performance tuning files directly to your vehicle's tuner. A specific TDN-compatible hardware device is necessary to use this service.

**Highlights:** Receive custom vehicle tunes, Works with TDN devices, Direct tune delivery, Requires compatible hardware

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

- 🐛 Constant connectivity issues
- 🐛 Crashes and freezes frequently
- 🐛 Glitchy and inconsistent performance
- 🐛 Bluetooth disconnection problems
- 🐛 Sync and file transfer issues

**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

**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


### SUTuner

[App page](https://appshunter.io/ios/app/sutuner/id6801878820)

This app helps you find and tune SU carburetors by replacing traditional spreadsheets with a digital tool. It allows you to match needles based on desired diameters, adjust specific regions for richer or leaner performance, and compare needle profiles visually. It also includes a reference for factory applications and the ability to import dyno logs.

**Highlights:** Needle matching by diameter, Region-specific tuning (richer/leaner), Overlay needle comparison charts, Factory vehicle application reference, Dyno AFR log import and analysis, Offline functionality

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Tune Delivery Network (TDN) free?

Tune Delivery Network (TDN) is free to download, with no in-app purchases.

### Is SUTuner free?

SUTuner costs $9.99, with no in-app purchases.

### Which has better reviews, Tune Delivery Network (TDN) or SUTuner?

SUTuner is rated higher. Tune Delivery Network (TDN) averages 2.4 out of 5 from 38 ratings, while SUTuner averages 5.0 from 1 ratings.

### Do Tune Delivery Network (TDN) or SUTuner have ads?

Neither Tune Delivery Network (TDN) nor SUTuner shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*