# Riichi Log vs 13 Orphans Calculator

The clearest difference is device support: Riichi Log at 3 against 13 Orphans Calculator's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Riichi Log sells 1 one-off in-app purchase and 13 Orphans Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Riichi Log ships an update every 2 weeks, 13 Orphans Calculator weekly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Riichi Log | 13 Orphans Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 34 MB | 42 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lok Wai](https://appshunter.io/developer/1895320924) | [KEVIN ALLEN GONZALES ONG](https://appshunter.io/developer/6801997158) |

## What reviewers say

### Riichi Log

[App page](https://appshunter.io/ios/app/riichi-log-score-tracker/id6779672292)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Riichi Log Pro | $1.99 | one-time |


### 13 Orphans Calculator

[App page](https://appshunter.io/ios/app/13-orphans-calculator/id6801997156)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 13 Orphans Pro Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Riichi Log free?

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

### Is 13 Orphans Calculator free?

13 Orphans Calculator is free to download, with in-app purchases available.

### Do Riichi Log or 13 Orphans Calculator have ads?

Neither Riichi Log nor 13 Orphans Calculator shows ads.

### Which is updated more often, Riichi Log or 13 Orphans Calculator?

Riichi Log ships an update every 2 weeks, and 13 Orphans Calculator weekly. Most recently, Riichi Log was updated on October 28, 2026 and 13 Orphans Calculator on October 31, 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.*