# addSound vs 燃費記録（SimpleSeriesApp）

The clearest difference is ads: addSound at none against 燃費記録（SimpleSeriesApp）'s shown. addSound also leads on iOS requirement (12.2 vs 18.5). On price, update cadence, in-app purchases and device support there is nothing between them.

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

addSound ships an update every 2 months, 燃費記録（SimpleSeriesApp） monthly. The most recent releases landed on September 28, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | addSound | 燃費記録（SimpleSeriesApp） |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 75 MB | 7 MB |
| Requires iOS | **12.2** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Aogochi Inc.](https://appshunter.io/developer/1528156418) | [AKIRA SASAKI](https://appshunter.io/developer/1831157554) |

## What reviewers say

### addSound

[App page](https://appshunter.io/ios/app/addsound/id1528156416)

Customize your audio experience with adjustable volume, tap sensitivity, and sound effects. Manage device power and update firmware. Access FAQs for support.

**Highlights:** Automatic volume adjustment, Tap sensitivity settings, Automatic power-off, Sound expansion and clarity, Firmware updates, FAQ access

**In-app purchases:** none


### 燃費記録（SimpleSeriesApp）

[App page](https://appshunter.io/ios/app/simpleseriesapp/id6749557907)

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

**In-app purchases:** none


## Frequently asked questions

### Is addSound free?

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

### Is 燃費記録（SimpleSeriesApp） free?

燃費記録（SimpleSeriesApp） is free to download, with no in-app purchases.

### Do addSound or 燃費記録（SimpleSeriesApp） have ads?

燃費記録（SimpleSeriesApp） shows ads; addSound does not.

### Which is updated more often, addSound or 燃費記録（SimpleSeriesApp）?

addSound ships an update every 2 months, and 燃費記録（SimpleSeriesApp） monthly. Most recently, addSound was updated on September 28, 2026 and 燃費記録（SimpleSeriesApp） on September 22, 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.*