NEFcon vs Ethanol Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NEFcon
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NEFcon ile kendi tasarımlarınızı yapabilir, oluşturduğunuz tasarımları da kullanabilirsiniz.
Ethanol Calculator
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Ethanol Calculator helps you determine exactly how much pure ethanol to add to your fuel tank to reach your desired ethanol ratio. KEY FEATURES: - Calculate required ethanol amount instantly - Preset buttons for E10, E20, E25, E50, E85 - Extra fuel mixing calculator - Real-time results as you adjust sliders - Dark & Light mode support - Available in 30 languages PERFECT FOR: - Flex fuel vehicle owners - E85 enthusiasts & tuners - Race fuel blending - Biofuel mixing calculations Simply enter your current fuel amount, current ethanol percentage, and target ethanol percentage. The app instantly calculates how much pure ethanol you need to add. The extra settings feature lets you factor in additional fuel purchases and their ethanol content for precise mixing calculations. Note: Calculations are based on mathematical formulas using 100% pure ethanol as reference.
Screenshots
Verdict
The clearest difference is price: NEFcon at Free against Ethanol Calculator's $9.99. NEFcon also leads on iOS requirement (11.0 vs 16.0). Ethanol Calculator's advantage is update cadence (every 2 days vs every 3 weeks). On ads, 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
NEFcon is free to download; Ethanol Calculator costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
NEFcon ships an update every 3 weeks, Ethanol Calculator every 2 days. The most recent releases landed on September 24, 2026 and October 7, 2026 respectively.
| Parameter | NEFcon | Ethanol Calculator |
|---|---|---|
| Price | Free — better | $9.99 |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 23 MB | 9 MB |
| Age rating | 4+ | 17+ |
| Developer | Murat Ercan | Mursel OSMANOGLU |
In-app purchases
NEFcon
No in-app purchases
Ethanol Calculator
No in-app purchases
Questions
Is NEFcon free?
Is Ethanol Calculator free?
Do NEFcon or Ethanol Calculator have ads?
Which is updated more often, NEFcon or Ethanol Calculator?
Other comparisons
