# Tune Delivery Network (TDN) vs 85Blends

The clearest difference is in-app purchases: Tune Delivery Network (TDN) at none against 85Blends's 1. Tune Delivery Network (TDN) also leads on ads (none vs shown) and device support (3 vs 1). On price and update cadence there is nothing between them.

Both are free to download. 85Blends sells 1 in-app purchase, starting at $3.99 per month. Tune Delivery Network (TDN) asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Tune Delivery Network (TDN) | 85Blends |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (37 ratings)](https://appshunter.io/ios/app/tune-delivery-network-tdn/id1590560864/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 14.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free | — |
| Size | 61 MB | 24 MB |
| Requires iOS | **13.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HP Tuners LLC](https://appshunter.io/developer/1767627066) | [Julian Figueroa](https://appshunter.io/developer/1892612260) |

## 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


### 85Blends

[App page](https://appshunter.io/ios/app/85blends/id6762037468)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 85Blends Pro | $3.99 | per month |


## Frequently asked questions

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

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

### Is 85Blends free?

85Blends is free to download, with in-app purchases available.

### Do Tune Delivery Network (TDN) or 85Blends have ads?

85Blends shows ads; Tune Delivery Network (TDN) does not.

### Which is updated more often, Tune Delivery Network (TDN) or 85Blends?

Tune Delivery Network (TDN) ships an update fortnightly, and 85Blends fortnightly. Most recently, Tune Delivery Network (TDN) was updated on November 3, 2026 and 85Blends on October 31, 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.*