Comparison

e85Cal vs 85Blends

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

Head to head
About

e85Cal

This app assists users in calculating the precise amounts of standard and ethanol gasoline needed to achieve a desired ethanol percentage in their fuel mix. It simplifies the process by taking into account tank size, current fuel level, and the ethanol content of available fuel types.

Highlights
  • Calculate ethanol percentage goal
  • Enter gas tank size
  • Input standard pump gas ethanol %
  • Input ethanol pump gas ethanol %
  • Set target ethanol % mix
  • Enter current fuel level %
Features
Read full description

e85Cal help you calculate your ethanol percentage goal. It fast, simple, and easy to use. Just enter the following information: 1) How big is your gas tank? 2) What is the ethanol % in the standard pump gas? 3) What is the ethanol % in the ethanol pump gas? 4) What is your target ethanol % mix goal? 5) What is your current ethanol % min in your vehicle? 6) What is your current fuel level % in your vehicle? Results will display how many gallons or liters of standard and ethanol gas to pump in your vehicle based on your input.

About

85Blends

Features
Read full description

85Blends — Your E85 & Flex-Fuel Companion Whether you’re running a flex-fuel setup, mixing ethanol blends yourself, or just looking for your next E85 fill-up, 85Blends gives you the tools you need in one place. CALCULATE YOUR BLEND Quickly calculate how much E85 and gasoline to add to reach your target ethanol content. Enter your current fuel level, current ethanol percentage, target blend, and tank size — 85Blends handles the math. Use At The Pump for quick calculations while filling up, including partial fills and gas-only adjustments. FIND E85 NEARBY Discover nearby E85 stations using your location, browse station details, save favorites, get directions, and share stations with other drivers. Recent nearby stations can appear immediately when you reopen the app while fresh station data updates in the background. Community Pricing lets drivers submit and share current E85 prices to help keep station information useful for everyone. KEEP TRACK OF YOUR CAR Add your vehicle to Garage and keep important fuel and maintenance information organized. Track: • Fuel fill-ups and ethanol blends • Mileage and fuel history • Maintenance reminders • Vehicle fuel and tank information Cloud Sync helps keep supported app data available across your Apple devices and is included for both Free and Pro users. 85BLENDS PRO Upgrade to Pro for additional tools built for drivers who use E85 regularly: • Intelligent E85 Trip Planner • Interactive Stations map • Map or Classic Stations layouts • Unlimited Garage vehicles • Ad-free experience Trip Planner helps you plan longer drives around available E85 stations, estimate fuel stops, and open your preferred navigation app when you’re ready to drive. BUILT FOR E85 DRIVERS 85Blends is designed to make ethanol blending and E85 station discovery simpler without requiring an account. Whether you’re filling with straight E85, mixing an E30/E50/E70 blend, or keeping track of a flex-fuel vehicle, the tools you need are always close by. Location access is optional and used for nearby station features. Automatic Pump Detection is also optional and can be enabled separately. Support: support@85blends.app Privacy Policy: https://85blends.app/privacy.html 85Blends Pro is an optional auto-renewable subscription. Subscription features and availability may change as the app continues to improve.

Screenshots

e85Cal2 screens
85Blends4 screens

Verdict

The call

The clearest difference is ads: e85Cal at none against 85Blends's shown. e85Cal also leads on iOS requirement (12.1 vs 17.6). 85Blends's advantage is update cadence (fortnightly vs every 4 months). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

e85Cal ships an update every 4 months, 85Blends fortnightly. The most recent releases landed on September 26, 2026 and September 18, 2026 respectively.

Scorecard3 real differences · 7 level
e85Cal versus 85Blends: the parameters behind the verdict, then further details
Parametere85Cal85Blends
PriceFreeFree
Rating4.7 (35 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings35 — better—
Update frequencyEvery 4 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS12.1 — better17.6
Further details — not scored
Size15 MB17 MB
Age rating4+4+
DeveloperMichael JoeJulian Figueroa

In-app purchases

None

e85Cal

No in-app purchases

None

85Blends

No in-app purchases

Questions

Is e85Cal free?
e85Cal is free to download, with no in-app purchases.
Is 85Blends free?
85Blends is free to download, with no in-app purchases.
Do e85Cal or 85Blends have ads?
85Blends shows ads; e85Cal does not.
Which is updated more often, e85Cal or 85Blends?
e85Cal ships an update every 4 months, and 85Blends fortnightly. Most recently, e85Cal was updated on September 26, 2026 and 85Blends on September 18, 2026.

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