# e85Cal vs iWire Connect

The clearest difference is update cadence: iWire Connect at weekly against e85Cal's every 4 months. iWire Connect also leads on rating (5.0 vs 4.7). e85Cal's advantage is ratings volume (37 vs 5) and iOS requirement (12.1 vs 14.0). 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.

iWire Connect holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: e85Cal has 37 ratings behind it against 5, so its average is the more settled of the two.

e85Cal ships an update every 4 months, iWire Connect weekly. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | e85Cal | iWire Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (37 ratings)](https://appshunter.io/ios/app/e85cal/id1470313135/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/iwire-connect/id6738495285/reviews)** |
| Number of ratings | **37** | 5 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | Free |
| Size | 15 MB | 45 MB |
| Requires iOS | **12.1** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Michael Joe](https://appshunter.io/developer/1132486512) | [iWireUSA](https://appshunter.io/developer/1781007233) |

## 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


### iWire Connect

[App page](https://appshunter.io/ios/app/iwire-connect/id6738495285)

This utility app connects your phone to specific vehicle control modules. It allows for calibration of speed sensor replication, customization of device and interface colors, and displays live GPS speed readings.

**Highlights:** Phone to control module connection, iVSS calibration, Device LED color change, User interface color customization, Live GPS speed readout

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

**In-app purchases:** none


## Frequently asked questions

### Is e85Cal free?

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

### Is iWire Connect free?

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

### Which has better reviews, e85Cal or iWire Connect?

iWire Connect is rated higher. e85Cal averages 4.7 out of 5 from 37 ratings, while iWire Connect averages 5.0 from 5 ratings.

### Do e85Cal or iWire Connect have ads?

Neither e85Cal nor iWire Connect shows ads.

### Which is updated more often, e85Cal or iWire Connect?

e85Cal ships an update every 4 months, and iWire Connect weekly. Most recently, e85Cal was updated on October 24, 2026 and iWire Connect on October 21, 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.*