# Tune Delivery Network (TDN) vs PowerProbe Link

The clearest difference is rating: PowerProbe Link at 3.5 against Tune Delivery Network (TDN)'s 2.4. Tune Delivery Network (TDN)'s advantage is update cadence (fortnightly vs every 13 months) and review sentiment (14% vs 0%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PowerProbe Link holds the better App Store score, 3.5 against 2.4. That said, the two scores are not equally well evidenced: Tune Delivery Network (TDN) has 39 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 14% of Tune Delivery Network (TDN)'s written reviews are positive against 0% of PowerProbe Link's, so the app with the better star average is not the one people write more warmly about.

Tune Delivery Network (TDN) ships an update fortnightly, PowerProbe Link every 13 months. The most recent releases landed on November 11, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Tune Delivery Network (TDN) | PowerProbe Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (39 ratings)](https://appshunter.io/ios/app/tune-delivery-network-tdn/id1590560864/reviews) | **[3.5 (4 ratings)](https://appshunter.io/ios/app/powerprobe-link/id6476737385/reviews)** |
| Number of ratings | **39** | 4 |
| Positive reviews | **14.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 13 months |
| Monetization | Free | Free |
| Size | 61 MB | 4 MB |
| Requires iOS | 13.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HP Tuners LLC](https://appshunter.io/developer/1767627066) | [MGL APPA CORPORATION](https://appshunter.io/developer/1121102475) |

## 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


### PowerProbe Link

[App page](https://appshunter.io/ios/app/powerprobe-link/id6476737385)

This utility app connects to specific PowerProbe devices, enabling wireless data logging and remote monitoring. Users can download log data and export it to CSV files for analysis and reporting.

**Highlights:** Wireless data logging, Remote measurement monitoring, Log data download, CSV data export, Supports PowerProbe IT500, Supports DRAW MONITOR

**Features:** macOS Compatibility

**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 PowerProbe Link free?

PowerProbe Link is free to download, with no in-app purchases.

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

PowerProbe Link is rated higher. Tune Delivery Network (TDN) averages 2.4 out of 5 from 39 ratings, while PowerProbe Link averages 3.5 from 4 ratings.

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

Neither Tune Delivery Network (TDN) nor PowerProbe Link shows ads.

### Which is updated more often, Tune Delivery Network (TDN) or PowerProbe Link?

Tune Delivery Network (TDN) ships an update fortnightly, and PowerProbe Link every 13 months. Most recently, Tune Delivery Network (TDN) was updated on November 11, 2026 and PowerProbe Link on November 4, 2026.

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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.*