# e燃費 vs 瞬速！燃費計算

The clearest difference is in-app purchases: e燃費 at none against 瞬速！燃費計算's 1. e燃費 also leads on iOS requirement (11.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 瞬速！燃費計算 sells 1 in-app purchase, starting at $1.99 per month. e燃費 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | e燃費 | 瞬速！燃費計算 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 10.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 25 MB | 7 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [IID,Inc.](https://appshunter.io/developer/869181882) | [Shun Isayama](https://appshunter.io/developer/1578976556) |

## 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


### 瞬速！燃費計算

[App page](https://appshunter.io/ios/app/id6727004599)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示（初週無料） | $1.99 | per month |


## Frequently asked questions

### Is e燃費 free?

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

### Is 瞬速！燃費計算 free?

瞬速！燃費計算 is free to download, with in-app purchases available.

### Do e燃費 or 瞬速！燃費計算 have ads?

Neither e燃費 nor 瞬速！燃費計算 shows ads.

### Which is updated more often, e燃費 or 瞬速！燃費計算?

e燃費 ships an update every 3 months, and 瞬速！燃費計算 every 3 months. Most recently, e燃費 was updated on September 29, 2026 and 瞬速！燃費計算 on October 5, 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.*