Boostane vs e85Cal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Boostane
Calculate the precise amount of octane booster needed to achieve your desired fuel octane. Save calculations, share them via email or text, and get estimated horsepower gains.
- Calculate required octane booster amount
- Save calculations to favorites
- Share calculations via email or text
- Estimate horsepower gains
- User-friendly design
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Welcome to the new and innovative app for BOOSTane Octane Booster! This app will help you calculate the amount of BOOSTane that you will need in order to reach a desired octane. Features Include: · Save Calculations to Favorites · Email or Text Your Calculations · Get Estimated Horsepower for Calculations · Great Design and Easy to Use!
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.
- 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 %
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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.
Screenshots
Verdict
The clearest difference is review sentiment: e85Cal at 83% against Boostane's 7%. e85Cal also leads on rating (4.7 vs 2.0) and update cadence (every 4 months vs every 14 months). Boostane's advantage is iOS requirement (10.0 vs 12.1). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
e85Cal holds the better App Store score, 4.7 against 2.0. Both are backed by a comparable volume of ratings — 27 and 37 respectively. Written reviews point the same way: 7% of Boostane's written reviews are positive against 83% of e85Cal's.
Boostane ships an update every 14 months, e85Cal every 4 months. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.
| Parameter | Boostane | e85Cal |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (27 ratings) | 4.7 (37 ratings) — better |
| Positive reviews | 6.9% of reviews | 83.3% of reviews — better |
| Number of ratings | 27 | 37 — better |
| Update frequency | Every 14 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 10.0 — better | 12.1 |
| Further details — not scored | ||
| Size | 38 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | BOOSTane, LLC | Michael Joe |
Customer experience
Boostane
e85Cal
In-app purchases
Boostane
No in-app purchases
e85Cal
No in-app purchases
