# E85 App vs Tune Delivery Network (TDN)

The clearest difference is rating: E85 App at 4.4 against Tune Delivery Network (TDN)'s 2.4. E85 App also leads on review sentiment (52% vs 14%). Tune Delivery Network (TDN)'s advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. E85 App sells 3 in-app purchases, starting at $2.99 per month. Tune Delivery Network (TDN) asks for nothing beyond the download.

E85 App holds the better App Store score, 4.4 against 2.4. Both are backed by a comparable volume of ratings — 66 and 38 respectively. Written reviews point the same way: 52% of E85 App's written reviews are positive against 14% of Tune Delivery Network (TDN)'s.

E85 App ships an update weekly, Tune Delivery Network (TDN) fortnightly. Both last shipped on November 7, 2026.

## The numbers

| Metric | E85 App | Tune Delivery Network (TDN) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (66 ratings)](https://appshunter.io/ios/app/e85-app/id1508517906/reviews)** | [2.4 (38 ratings)](https://appshunter.io/ios/app/tune-delivery-network-tdn/id1590560864/reviews) |
| Number of ratings | **66** | 38 |
| Positive reviews | **52.1% of reviews** | 14.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 28 MB | 61 MB |
| Requires iOS | 17.0 | **13.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ahmed Elsayed](https://appshunter.io/developer/1497438505) | [HP Tuners LLC](https://appshunter.io/developer/1767627066) |

## What reviewers say

### E85 App

[App page](https://appshunter.io/ios/app/e85-app/id1508517906)

Find real E85 fuel stations with live pricing and community-verified ethanol content. Calculate custom fuel blends, track savings, and showcase your vehicle's build. Works offline and offers CarPlay integration.

**Highlights:** Live E85 station map, Freshness-dated prices, Community-verified ethanol content, Custom blend calculator, Cost-per-mile tracking, Car builds showcase, Offline station access

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| E85 Pro Monthly | $2.99 | per month |
| E85 Pro Yearly | $19.99 | per year |
| Remove Ads | $5.99 | one-time |

**What reviewers like**

- 👍 Helpful for finding E85 stations
- 👍 Accurate E85 station information
- 👍 Useful E85 calculator
- 👍 Good for travel
- 👍 All-in-one app

**What reviewers complain about**

- 🐛 Black screen on startup
- 🐛 Frequent ads are annoying
- 🐛 Ads are uncloseable
- 🐛 Paid version still has ads
- 🐛 Missing many E85 stations

**Reported bugs**

- Black screen after updates
- App shows blank black screen
- App deleted account after sign out
- Ads are uncloseable
- Coinbase ad cannot be closed

**Requested features**

- Add option to add/suggest stations
- Make search easier
- Improve money log keypad
- Make favorites more accessible
- Add live, up-to-date prices


### 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


## Frequently asked questions

### Is E85 App free?

E85 App is free to download, with in-app purchases available.

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

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

### Which has better reviews, E85 App or Tune Delivery Network (TDN)?

E85 App is rated higher. E85 App averages 4.4 out of 5 from 66 ratings, while Tune Delivery Network (TDN) averages 2.4 from 38 ratings.

### Do E85 App or Tune Delivery Network (TDN) have ads?

E85 App shows ads; Tune Delivery Network (TDN) does not.

### Which is updated more often, E85 App or Tune Delivery Network (TDN)?

E85 App ships an update weekly, and Tune Delivery Network (TDN) fortnightly. Most recently, E85 App was updated on November 7, 2026 and Tune Delivery Network (TDN) on November 7, 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.*