# 日立永大Service vs RRRemember

The clearest difference is in-app purchases: 日立永大Service at none against RRRemember's 4. 日立永大Service also leads on iOS requirement (10.0 vs 17.0). RRRemember's advantage is update cadence (every 5 days vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. RRRemember sells 4 one-off in-app purchases. 日立永大Service asks for nothing beyond the download.

日立永大Service ships an update every 8 months, RRRemember every 5 days. The most recent releases landed on September 19, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | 日立永大Service | RRRemember |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 33 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hitachi Yungtay Elevator Co., Ltd.](https://appshunter.io/developer/1537352418) | [洪跃 管](https://appshunter.io/developer/1363417345) |

## What reviewers say

### 日立永大Service

[App page](https://appshunter.io/ios/app/service/id1589918129)

**Features:** macOS Compatibility

**In-app purchases:** none


### RRRemember

[App page](https://appshunter.io/ios/app/rrremember/id6479942350)

Record important days with a simple design and delicate experience. Track past days or days remaining with a simulated paper flipping effect. Decorate entries with theme icons and use widgets for quick access.

**Highlights:** Record important days, Track days passed or remaining, Simulated paper flipping experience, Theme icons for decoration, Widgets and standby components, Timeline function

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Storage | $0.99 | one-time |
| All Themes and Icons | $1.99 | one-time |
| One-time Purchase | $2.99 | one-time |
| All Widget Functions | $2.99 | one-time |


## Frequently asked questions

### Is 日立永大Service free?

日立永大Service is free to download, with no in-app purchases.

### Is RRRemember free?

RRRemember is free to download, with in-app purchases available.

### Do 日立永大Service or RRRemember have ads?

Neither 日立永大Service nor RRRemember shows ads.

### Which is updated more often, 日立永大Service or RRRemember?

日立永大Service ships an update every 8 months, and RRRemember every 5 days. Most recently, 日立永大Service was updated on September 19, 2026 and RRRemember on August 12, 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.*