# クルマ メンテナンス・日記 vs 共豊 D

The clearest difference is ads: 共豊 D at none against クルマ メンテナンス・日記's shown. 共豊 D also leads on iOS requirement (12.0 vs 17.6). 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.

クルマ メンテナンス・日記 ships an update every 5 months, 共豊 D every 6 months. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | クルマ メンテナンス・日記 | 共豊 D |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 67.5% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 6 months |
| Monetization | Ad-supported | — |
| Size | 34 MB | 38 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Green Speed Inc.](https://appshunter.io/developer/1504671073) | [KYOHO CORPORATION](https://appshunter.io/developer/1556563047) |

## What reviewers say

### クルマ メンテナンス・日記

[App page](https://appshunter.io/ios/app/id1407151450)

Record your car's maintenance history, drive logs, and expenses. Track service dates, edit maintenance items, and categorize your entries. View yearly summaries and utilize GPS to log your locations.

**Highlights:** Maintenance recording, Editable maintenance items, Diary categorization, Expense tracking and aggregation, Yearly summaries, GPS location logging, Multiple car management

**Features:** Vision Pro support

**In-app purchases:** none


### 共豊 D

[App page](https://appshunter.io/ios/app/d-response/id1556563045)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is クルマ メンテナンス・日記 free?

クルマ メンテナンス・日記 is free to download, with no in-app purchases.

### Is 共豊 D free?

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

### Do クルマ メンテナンス・日記 or 共豊 D have ads?

クルマ メンテナンス・日記 shows ads; 共豊 D does not.

### Which is updated more often, クルマ メンテナンス・日記 or 共豊 D?

クルマ メンテナンス・日記 ships an update every 5 months, and 共豊 D every 6 months. Most recently, クルマ メンテナンス・日記 was updated on October 16, 2026 and 共豊 D on October 19, 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.*