# Prayer vs 年号電卓Plus

The clearest difference is in-app purchases: 年号電卓Plus at none against Prayer's 10. Prayer's advantage is review sentiment (55% vs 38%) and iOS requirement (12.3 vs 17.6). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Prayer sells 10 one-off in-app purchases. 年号電卓Plus asks for nothing beyond the download.

Prayer ships an update every 2 months, 年号電卓Plus every 6 weeks. The most recent releases landed on October 3, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Prayer | 年号電卓Plus |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **55.0% of reviews** | 37.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 33 MB | 7 MB |
| Requires iOS | **12.3** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [HANBUNCO, INC.](https://appshunter.io/developer/436677464) | [Nakanishi Toshihiko](https://appshunter.io/developer/712843914) |

## What reviewers say

### Prayer

[App page](https://appshunter.io/ios/app/prayer-sutras/id498933432)

This app offers a collection of Japanese sutras for remembrance and prayer for deceased loved ones. It includes instrumental sounds and a recording function, allowing users to personalize their spiritual practice. Users can also display photos of those they wish to honor.

**Highlights:** 78 Japanese sutras, Instrumental sounds (drum, singing bowl), Recording function, Customizable sutra playback order, Photo display for loved ones, Preset landscape images

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| HEART SUTRA | $1.99 | one-time |
| NICHIREN SHU HOUBENPONDAINI | $1.99 | one-time |
| SHINSHU OOTANIHA SHOUSHINGE | $1.99 | one-time |
| SHINSHU OOTANIHA NENBUTSU | $1.99 | one-time |
| JOUDOSHINSHU HONGANJIHA SHOUSHINNENBUTSUGE | $1.99 | one-time |
| KOUYASAN SHINGONSHU SANKI | $1.99 | one-time |
| KOUYASAN SHINGONSHU HEART SUTRA | $1.99 | one-time |
| SHINGONSHU CHISANHA HEART SUTRA | $1.99 | one-time |
| SOUTOU SHU FUMONBONGE | $1.99 | one-time |


### 年号電卓Plus

[App page](https://appshunter.io/ios/app/plus/id1320583340)

Easily convert between Western and Japanese eras, and determine birth years from age. Explore historical context with explanations for era changes and significant events of each year.

**Highlights:** Western to Japanese era conversion, Japanese era to Western conversion, Calculate birth year from age, View era start and end dates, Understand reasons for era changes, Discover major events of each year

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Prayer free?

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

### Is 年号電卓Plus free?

年号電卓Plus is free to download, with no in-app purchases.

### Do Prayer or 年号電卓Plus have ads?

Neither Prayer nor 年号電卓Plus shows ads.

### Which is updated more often, Prayer or 年号電卓Plus?

Prayer ships an update every 2 months, and 年号電卓Plus every 6 weeks. Most recently, Prayer was updated on October 3, 2026 and 年号電卓Plus on September 27, 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.*