e85Cal vs My Mustang
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 %
Read full descriptionHide full description
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.
My Mustang
Manage your Mustang's maintenance with a dedicated tracker. Log service records, set reminders for oil changes and inspections, and build a complete history for your classic or modern vehicle. Keep your Mustang running strong and protect its value.
- Track one or a collection of Mustangs
- Customizable maintenance reminders
- Log repairs and routine maintenance
- Attach photos and notes to records
- Build complete service history
- Designed for Mustang enthusiasts
Read full descriptionHide full description
The app every Mustang deserves. Keep your Mustang running strong with a simple, powerful maintenance tracker built specifically for Mustang owners and enthusiasts. Whether you own a classic pony car, a modern GT, or an entire collection, this app helps you stay on top of service, organize maintenance records, monitor vehicle health, and protect the value of your Mustang. No more forgotten oil changes. No more scattered receipts. No more guessing what that warning light means. Just one clean, easy place to manage everything about your Mustang. Add your car, set reminders, log your work, run diagnostics with your OBD scanner, and drive with confidence. Key Features • Track one Mustang or an entire collection • Set custom maintenance reminders • Never forget oil changes, inspections, or services • Log repairs, upgrades, and routine maintenance • Connect an OBD scanner and read diagnostic trouble codes (DTCs) • Monitor vehicle health and identify issues before they become costly repairs • Attach photos and notes to every record • Build a complete service history • Clean, fast, and easy to use • Designed specifically for Mustang enthusiasts Why You’ll Love It • Keep your Mustang perfectly maintained • Detect problems early with OBD diagnostics • Protect resale value with detailed records • Stay organized without spreadsheets • Simple setup in seconds • Works for classics and modern models Built for Enthusiasts This app was created for people who care about their Mustangs. From daily drivers to weekend show cars, it gives you a dedicated tool to manage the vehicle you love. Track maintenance, store service records, and use your OBD scanner to better understand your Mustang's condition and performance. Ready to take better care of your Mustang? Download today and keep your pony car running like it should. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://istack.ro/mymustang/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: e85Cal at none against My Mustang's 3. e85Cal also leads on ratings volume (37 vs 2) and iOS requirement (12.1 vs 18.5). My Mustang's advantage is update cadence (every 3 weeks vs every 4 months) and rating (5.0 vs 4.7). On price, ads 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
Both are free to download. My Mustang sells 3 in-app purchases, starting at $3.99 per month. e85Cal asks for nothing beyond the download.
My Mustang 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 2, so its average is the more settled of the two. Written reviews point the same way: 83% of e85Cal's written reviews are positive against 100% of My Mustang's.
e85Cal ships an update every 4 months, My Mustang every 3 weeks. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.
| Parameter | e85Cal | My Mustang |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (37 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 83.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 37 — better | 2 |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.1 — better | 18.5 |
| Further details — not scored | ||
| Size | 15 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Joe | ISTACK DEVELOPMENT |
Customer experience
e85Cal
My Mustang
In-app purchases
e85Cal
No in-app purchases
My Mustang
- Monthly Subscription7 Days trial$3.991 Month
- Annual Subscription7 Days trial$24.991 Year
- MyMustang Pro – Lifetime$44.99
