# E85 Calculator vs 85Blends

The clearest difference is ads: E85 Calculator at none against 85Blends's shown. 85Blends's advantage is update cadence (fortnightly vs every 29 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

E85 Calculator ships an update every 29 months, 85Blends fortnightly. The most recent releases landed on September 8, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | E85 Calculator | 85Blends |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/e85-calculator/id1029273167/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 29 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 3 MB | 17 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sheharyar Irfan](https://appshunter.io/developer/974971911) | [Julian Figueroa](https://appshunter.io/developer/1892612260) |

## What reviewers say

### E85 Calculator

[App page](https://appshunter.io/ios/app/e85-calculator/id1029273167)

This application helps performance enthusiasts and flex-fuel vehicle owners precisely calculate the amounts of E85 and gasoline needed for specific ethanol percentages or octane ratings. It offers both simple and advanced modes for fuel mixing calculations, supporting metric and imperial units.

**Highlights:** Calculate E85 and gasoline amounts, Target specific ethanol percentages, Calculate by desired octane rating, Metric and imperial unit support, Real-time calculations, Easy and advanced modes

**Features:** macOS Compatibility

**In-app purchases:** none


### 85Blends

[App page](https://appshunter.io/ios/app/85blends/id6762037468)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is E85 Calculator free?

E85 Calculator is free to download, with no in-app purchases.

### Is 85Blends free?

85Blends is free to download, with no in-app purchases.

### Do E85 Calculator or 85Blends have ads?

85Blends shows ads; E85 Calculator does not.

### Which is updated more often, E85 Calculator or 85Blends?

E85 Calculator ships an update every 29 months, and 85Blends fortnightly. Most recently, E85 Calculator was updated on September 8, 2026 and 85Blends on September 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*