# 履歴書年号 vs Date and time calc

The clearest difference is update cadence: 履歴書年号 at every 3 months against Date and time calc's every 16 months. 履歴書年号 also leads on iOS requirement (12.0 vs 17.6). On price, ads, 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.

履歴書年号 ships an update every 3 months, Date and time calc every 16 months. The most recent releases landed on May 16, 2026 and July 23, 2026 respectively.

## The numbers

| Metric | 履歴書年号 | Date and time calc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 23.1% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 months** | Every 16 months |
| Monetization | — | Ad-supported |
| Size | 30 MB | 6 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hit Apps](https://appshunter.io/developer/378755417) | [Osamu Ishigami](https://appshunter.io/developer/901265058) |

## What reviewers say

### 履歴書年号

[App page](https://appshunter.io/ios/app/id463157000)

**Features:** macOS Compatibility

**In-app purchases:** none


### Date and time calc

[App page](https://appshunter.io/ios/app/date-and-time-calc/id949261920)

Easily calculate the difference between dates or add/subtract time intervals. This utility app simplifies date and time arithmetic with straightforward operations.

**Highlights:** Date difference calculation, Date addition and subtraction, Time difference calculation, Time addition and subtraction

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 履歴書年号 free?

履歴書年号 is free to download, with no in-app purchases.

### Is Date and time calc free?

Date and time calc is free to download, with no in-app purchases.

### Do 履歴書年号 or Date and time calc have ads?

Both 履歴書年号 and Date and time calc show ads.

### Which is updated more often, 履歴書年号 or Date and time calc?

履歴書年号 ships an update every 3 months, and Date and time calc every 16 months. Most recently, 履歴書年号 was updated on May 16, 2026 and Date and time calc on July 23, 2026.

---

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