# e燃費 vs OtokuNenpi

The clearest difference is price: e燃費 at Free against OtokuNenpi's $0.99. e燃費 also leads on update cadence (every 3 months vs every 25 months). OtokuNenpi's advantage is iOS requirement (9.0 vs 11.0). On ads, in-app purchases and device support there is nothing between them.

e燃費 is free to download; OtokuNenpi costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

e燃費 ships an update every 3 months, OtokuNenpi every 25 months. The most recent releases landed on October 26, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | e燃費 | OtokuNenpi |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 18.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 25 months |
| Monetization | Free | — |
| Size | 25 MB | 8 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [IID,Inc.](https://appshunter.io/developer/869181882) | [kazunori ueda](https://appshunter.io/developer/1415280956) |

## What reviewers say

### e燃費

[App page](https://appshunter.io/ios/app/e/id440691273)

Track your car's fuel efficiency with ease. Log your gas purchases by taking photos of receipts and compare your mileage to similar vehicles. The app also helps you manage maintenance schedules and find nearby gas stations with real-time price updates.

**Highlights:** Real-time fuel efficiency tracking, Receipt scanning for logging fuel purchases, Comparison with average vehicle fuel economy, Gas station map with real-time prices, Vehicle maintenance schedule management, Gas price posting via photo

**Features:** Vision Pro support

**In-app purchases:** none


### OtokuNenpi

[App page](https://appshunter.io/ios/app/otokunenpi/id1475197761)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is e燃費 free?

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

### Is OtokuNenpi free?

OtokuNenpi costs $0.99, with no in-app purchases.

### Do e燃費 or OtokuNenpi have ads?

Neither e燃費 nor OtokuNenpi shows ads.

### Which is updated more often, e燃費 or OtokuNenpi?

e燃費 ships an update every 3 months, and OtokuNenpi every 25 months. Most recently, e燃費 was updated on October 26, 2026 and OtokuNenpi on May 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*