# Calendar2015 vs 東日本通勤電車効果音

The clearest difference is ads: 東日本通勤電車効果音 at none against Calendar2015's shown. 東日本通勤電車効果音 also leads on update cadence (monthly vs every 2 months). Calendar2015's advantage is iOS requirement (12.0 vs 16.0). On price, 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.

Calendar2015 ships an update every 2 months, 東日本通勤電車効果音 monthly. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Calendar2015 | 東日本通勤電車効果音 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Ad-supported | — |
| Size | 24 MB | 29 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HISANORI KAMEYAMA](https://appshunter.io/developer/683895276) | [Yuta Wakamatsu](https://appshunter.io/developer/1482594118) |

## What reviewers say

### Calendar2015

[App page](https://appshunter.io/ios/app/calendar2015/id965053421)

This app displays the current Gregorian and Japanese eras simultaneously, along with the current time. It offers a simple interface with customizable background colors and a quick age calculation feature. It's designed for quick date lookups and conversions.

**Highlights:** Simultaneous Gregorian and Japanese era display, Current time display with analog clock, Customizable background colors, Age calculation, Year difference calculation, Date conversion

**Features:** macOS Compatibility

**In-app purchases:** none


### 東日本通勤電車効果音

[App page](https://appshunter.io/ios/app/id6748645097)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calendar2015 free?

Calendar2015 is free to download, with no in-app purchases.

### Is 東日本通勤電車効果音 free?

東日本通勤電車効果音 is free to download, with no in-app purchases.

### Do Calendar2015 or 東日本通勤電車効果音 have ads?

Calendar2015 shows ads; 東日本通勤電車効果音 does not.

### Which is updated more often, Calendar2015 or 東日本通勤電車効果音?

Calendar2015 ships an update every 2 months, and 東日本通勤電車効果音 monthly. Most recently, Calendar2015 was updated on November 1, 2026 and 東日本通勤電車効果音 on October 24, 2026.

---

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