Spool Ethanol Analyzer vs 85Blends
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spool Ethanol Analyzer
This application connects to a wireless sensor kit to measure in-tank ethanol content and fuel temperature. It also features a mixing ratio calculator that can be used independently of the sensor hardware.
- Connects to Spool Wireless Ethanol Sensor Kit
- Measures in-tank ethanol content
- Measures fuel temperature
- Includes mixing ratio calculator
- Uses Low energy Bluetooth protocols
- Fast and reliable data
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Spool Ethanol Analyzer is designed to connect to the Spool Wireless Ethanol Sensor Kit and/or the Spool Handheld ethanol analyzer to help determine the in-tank/pump ethanol content and fuel temperature. It incorporates the latest Low energy Bluetooth protocols and provides fast and reliable ethanol content information right on your smartphone. The App also includes a mixing ratio calculator and it can be used even if you don't have access to the Spool Wireless Ethanol Sensor Kit. The Spool Wireless Ethanol Sensor Kit can be purchased at www.spoolperformance.us
85Blends
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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
Verdict
The clearest difference is in-app purchases: Spool Ethanol Analyzer at none against 85Blends's 1. Spool Ethanol Analyzer also leads on ads (none vs shown) and device support (3 vs 1). 85Blends's advantage is update cadence (fortnightly vs every 13 months). On price 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
Both are free to download. 85Blends sells 1 in-app purchase, starting at $3.99 per month. Spool Ethanol Analyzer asks for nothing beyond the download.
Spool Ethanol Analyzer ships an update every 13 months, 85Blends fortnightly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | Spool Ethanol Analyzer | 85Blends |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (14 ratings) — better | — |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 13 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 9 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Ajay Rajeev | Julian Figueroa |
In-app purchases
Spool Ethanol Analyzer
No in-app purchases
85Blends
- 85Blends Pro$3.991 Month
Questions
Is Spool Ethanol Analyzer free?
Is 85Blends free?
Do Spool Ethanol Analyzer or 85Blends have ads?
Which is updated more often, Spool Ethanol Analyzer or 85Blends?
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