# e85Cal vs ATTC

The clearest difference is update cadence: e85Cal at every 4 months against ATTC's every 27 months. e85Cal also leads on ratings volume (35 vs 1) and iOS requirement (12.1 vs 15.2). ATTC's advantage is rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model there is nothing between them.

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

ATTC holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: e85Cal has 35 ratings behind it against 1, so its average is the more settled of the two.

e85Cal ships an update every 4 months, ATTC every 27 months. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | e85Cal | ATTC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (35 ratings)](https://appshunter.io/ios/app/e85cal/id1470313135/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/attc/id6467386211/reviews)** |
| Number of ratings | **35** | 1 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 27 months |
| Monetization | Free | Free |
| Size | 15 MB | 6 MB |
| Requires iOS | **12.1** | 15.2 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael Joe](https://appshunter.io/developer/1132486512) | [Dähler Competition Line (Deutschland) GmbH](https://appshunter.io/developer/1708557301) |

## What reviewers say

### e85Cal

[App page](https://appshunter.io/ios/app/e85cal/id1470313135)

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:** macOS Compatibility

**In-app purchases:** none


### ATTC

[App page](https://appshunter.io/ios/app/attc/id6467386211)

Enhance your BMW's security and performance with an advanced anti-theft system. This device offers multiple driving modes, including an anti-theft feature that disables the accelerator pedal to prevent unauthorized use. Control it via your smartphone or a remote for a more responsive engine and potential fuel savings.

**Highlights:** Anti-theft mode, Valet mode, Multiple Power Pedal modes, Smartphone control, Remote control, 10% quicker acceleration, Fuel savings

**In-app purchases:** none


## Frequently asked questions

### Is e85Cal free?

e85Cal is free to download, with no in-app purchases.

### Is ATTC free?

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

### Which has better reviews, e85Cal or ATTC?

ATTC is rated higher. e85Cal averages 4.7 out of 5 from 35 ratings, while ATTC averages 5.0 from 1 ratings.

### Do e85Cal or ATTC have ads?

Neither e85Cal nor ATTC shows ads.

### Which is updated more often, e85Cal or ATTC?

e85Cal ships an update every 4 months, and ATTC every 27 months. Most recently, e85Cal was updated on October 12, 2026 and ATTC on October 16, 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.*