e85Cal vs iWire Connect
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
iWire Connect
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.
- Phone to control module connection
- iVSS calibration
- Device LED color change
- User interface color customization
- Live GPS speed readout
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iWire Connect will bridge your phone to your iVSS or iDCCD control module. The app will set up calibration for iVSS, the vehicle speed sensor replication device, change the device LED color, the user interface color, and a live readout of GPS speed.
Screenshots
Verdict
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.
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.
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.
| Parameter | e85Cal | iWire Connect |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (37 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 37 — better | 5 |
| Update frequency | Every 4 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.1 — better | 14.0 |
| Further details — not scored | ||
| Size | 15 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Joe | iWireUSA |
Customer experience
e85Cal
iWire Connect
In-app purchases
e85Cal
No in-app purchases
iWire Connect
No in-app purchases
