# Roav Charger vs e85Cal

The clearest difference is ratings volume: Roav Charger at 11K against e85Cal's 37. Roav Charger also leads on iOS requirement (9.0 vs 12.1). e85Cal's advantage is review sentiment (83% vs 66%). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.8 for Roav Charger against 4.7 for e85Cal. That said, the two scores are not equally well evidenced: Roav Charger has 11K ratings behind it against 37, so its average is the more settled of the two. Written reviews are what separate them: 66% of Roav Charger's written reviews are positive against 83% of e85Cal's.

Roav Charger ships an update every 3 months, e85Cal every 4 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Roav Charger | e85Cal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (11K ratings)](https://appshunter.io/ios/app/roav-charger/id1233147677/reviews)** | [4.7 (37 ratings)](https://appshunter.io/ios/app/e85cal/id1470313135/reviews) |
| Number of ratings | **11K** | 37 |
| Positive reviews | 66.4% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 80 MB | 15 MB |
| Requires iOS | **9.0** | 12.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Power Mobile Life LLC](https://appshunter.io/developer/1096079944) | [Michael Joe](https://appshunter.io/developer/1132486512) |

## What reviewers say

### Roav Charger

[App page](https://appshunter.io/ios/app/roav-charger/id1233147677)

This app helps you locate your parked car using your smartphone's GPS. It also allows for quick tuning of FM radio frequencies and seamless pairing with a compatible car charger.

**Highlights:** Find My Car location tracking, Fast FM radio frequency tuner, Instant pairing with Smart Car Charger F2, Broadcast calls, music, and navigation, GPS location lock when engine stops

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

**In-app purchases:** none

**What reviewers like**

- 👍 Reliable and long-lasting
- 🚀 Automatic Bluetooth connection
- 💡 Helpful app features (battery monitoring, parking location)
- 🎨 Customizable LED colors
- 🔋 Powerful charging capabilities

**What reviewers complain about**

- 🐛 Connectivity issues (static, unable to find open stations)
- 🔋 Drains car battery when left plugged in
- 🔒 Privacy concerns with location tracking
- 🔇 Low volume/audio quality issues

**Reported bugs**

- Inconsistent Bluetooth connectivity
- App unable to detect device
- Incorrect frequency range on newer models

**Requested features**

- Ability to turn off FM transmission
- Automatic station scanning/selection
- Voice control/Siri integration
- More advanced car battery monitoring
- Improved parking location tracking


### 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


## Frequently asked questions

### Is Roav Charger free?

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

### Is e85Cal free?

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

### Which has better reviews, Roav Charger or e85Cal?

Roav Charger is rated higher. Roav Charger averages 4.8 out of 5 from 11K ratings, while e85Cal averages 4.7 from 37 ratings.

### Do Roav Charger or e85Cal have ads?

Neither Roav Charger nor e85Cal shows ads.

### Which is updated more often, Roav Charger or e85Cal?

Roav Charger ships an update every 3 months, and e85Cal every 4 months. Most recently, Roav Charger was updated on October 26, 2026 and e85Cal on October 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.*