# e85Cal vs Carvene

The clearest difference is update cadence: Carvene at weekly against e85Cal's every 4 months. Carvene also leads on rating (5.0 vs 4.7). e85Cal's advantage is ratings volume (37 vs 1) and iOS requirement (12.1 vs 15.1). 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.

Carvene 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 1, so its average is the more settled of the two.

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

## The numbers

| Metric | e85Cal | Carvene |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (37 ratings)](https://appshunter.io/ios/app/e85cal/id1470313135/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/carvene/id6757106834/reviews)** |
| Number of ratings | **37** | 1 |
| 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 | 32 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael Joe](https://appshunter.io/developer/1132486512) | [Elite Wash](https://appshunter.io/developer/1604617121) |

## 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


### Carvene

[App page](https://appshunter.io/ios/app/carvene/id6757106834)

This app offers convenient car care services while you sleep. Schedule washes, detailing, and gas fill-ups directly at your condo parking spot. Wake up to a clean, fueled car ready for your day.

**Highlights:** Overnight car wash and detailing, Gas fill-up services, Scheduled services (one-time or recurring), Key drop-off and retrieval system, Before and after photo verification, Real-time notifications, Loyalty rewards program

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is e85Cal free?

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

### Is Carvene free?

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

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

Carvene is rated higher. e85Cal averages 4.7 out of 5 from 37 ratings, while Carvene averages 5.0 from 1 ratings.

### Do e85Cal or Carvene have ads?

Neither e85Cal nor Carvene shows ads.

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

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