Comparison

E85 App vs Tune Delivery Network (TDN)

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

E85 App

Find E85 gas stations nearby and calculate E85 fuel mixtures. This tool is designed for car enthusiasts who use or are interested in E85 fuel.

Highlights
  • E85 gas station locator
  • E85 mix calculator
  • Location-based search
  • Fuel mixture calculations
Features
Read full description

E85 App tells you what no pump label will: what's ACTUALLY in the pump. Community-verified ethanol content, freshness-dated prices, and a blend calculator built for people who take their fuel seriously. FIND REAL E85, FAST • Every public E85 station in the US on a live map — government database + community submissions • Live prices refreshed all day, every day, nationwide — freshness-dated with confidence ratings, so you know whether "$2.49" was reported an hour ago or last month • Filter for stations with verified high ethanol content • Route planner: find E85 along your trip, not just around you • Add a station you're standing at in a couple taps • Works offline — stations and favorites are cached KNOW WHAT'S IN THE PUMP Pump labels lie. "E85" can legally be anywhere from 51% to 83% ethanol, and winter blends run lean. E85 App's community reports actual tested ethanol content per station — and even shows how it shifts season to season. The only ethanol truth map anywhere. NAIL YOUR BLEND • Mix E85 with pump gas to hit any target — E30, E50, E70, whatever your tune calls for • Accounts for what's already in your tank and the pump's real ethanol % • Cost-per-mile comparison so you know E85 is actually saving you money • Pump Assistant guides the two-step splash blend right on your Lock Screen • Tracks lifetime savings across every fill-up SHOW OFF YOUR BUILD • Showcase your E85 car in the Build Gallery — photo, mods, power, and real savings receipts • Vote on other builds; the community crowns a Car of the Week every week • Shareable build cards to flex your setup anywhere BUILT FOR CAR PEOPLE • Garage with your vehicles: tank size, max ethanol, mods, tune notes • CarPlay: nearby stations and prices on your dash • Home-screen and Lock Screen widgets: nearest E85 price and lifetime savings • Ask Siri to find E85 near you POWERED BY DRIVERS LIKE YOU Report prices, ethanol tests, photos, and available blends — with your name on them. Every contribution carries your @username, so the community knows who keeps the map honest. Earn XP, build daily streaks, take on a daily challenge, climb the leaderboard, and redeem rewards. See how many drivers are running E85 near you right now. STAY IN THE LOOP Favorite your stations and get a heads-up the moment E85 drops there — plus a daily pulse on what moved near you. Free to use. E85 Pro adds the tuner toolbox — full dyno history, overlay graphs, PRO flair — plus no ads. Find E85. Mix it right. Save on every fill. ——— SUBSCRIPTION E85 App offers an optional auto-renewing subscription, E85 Pro: full dyno run history, overlay comparison graphs, PRO leaderboard flair, and an ad-free experience. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription anytime in your Apple ID Account Settings after purchase. Any unused portion of a free trial, if offered, is forfeited when you purchase a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://e85app.com/privacy

About

Tune Delivery Network (TDN)

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
Read full description

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.

Screenshots

E85 App4 screens
Tune Delivery Network (TDN)4 screens

Verdict

The call

The clearest difference is rating: E85 App at 4.0 against Tune Delivery Network (TDN)'s 2.5. E85 App also leads on review sentiment (49% 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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

E85 App holds the better App Store score, 4.0 against 2.5. Both are backed by a comparable volume of ratings — 33 and 26 respectively. Written reviews point the same way: 49% of E85 App's written reviews are positive against 14% of Tune Delivery Network (TDN)'s.

UpkeepUpdate frequency

E85 App ships an update every 9 days, Tune Delivery Network (TDN) fortnightly. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 4 level
E85 App versus Tune Delivery Network (TDN): the parameters behind the verdict, then further details
ParameterE85 AppTune Delivery Network (TDN)
PriceFreeFree
Rating4.0 (33 ratings) — better2.5 (26 ratings)
Positive reviews48.9% of reviews — better14.5% of reviews
Number of ratings33 — better26
Update frequencyEvery 9 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.1 — better
Further details — not scored
Size27 MB61 MB
Age rating4+4+
DeveloperAhmed ElsayedHP Tuners LLC

Customer experience

E85 App

All ratings33 ratings
Positive72.7%
Neutral3.0%
Negative24.2%
Written reviews45 reviews
Positive48.9%
Neutral11.1%
Negative40.0%

Tune Delivery Network (TDN)

All ratings26 ratings
Positive34.6%
Neutral7.7%
Negative57.7%
Written reviews159 reviews
Positive14.5%
Neutral10.7%
Negative74.8%

Bugs and requests

E85 App

Not enough reviews yet to summarise bugs or requests.

Tune Delivery Network (TDN)

Reported bugs

4 issues
  • 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

3 requests
  • 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

In-app purchases

3 purchases

E85 App

Subscriptions2
  • E85 Pro Monthly$2.991 Month
  • E85 Pro Yearly$19.991 Year
One-time1
  • Remove Ads$5.99
None

Tune Delivery Network (TDN)

No in-app purchases

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 4.0 out of 5 from 33 ratings, while Tune Delivery Network (TDN) averages 2.5 from 26 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 every 9 days, and Tune Delivery Network (TDN) fortnightly. Most recently, E85 App was updated on September 18, 2026 and Tune Delivery Network (TDN) on September 23, 2026.

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