Riichi Calculator vs MJ DB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Riichi Calculator
Easily calculate scores for Japanese Mahjong hands. This utility offers a user-friendly interface and supports multiple languages, providing a seamless scoring experience without any advertisements.
- Easy-to-use interface
- Japanese Mahjong scoring
- Multiple language support
- No ads
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Riichi Calculator lets you easily calculate scores of your Riichi (Japanese) mahjong hands! Features include: - Easy-to-use interface - Multiple language support - No ads or annoying popups... ever Terms of Use for Riichi Calculator can be found at: https://cypressapplications.com/terms
MJ DB
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## Game Records - Record scores for each round: Real-time game trend charts - Detailed statistical analysis: Displays historical win rates and fan point distribution trends - Supports modifying/deleting past records, no fear of marking mistakes - Local Connection: Real-time sharing to other local devices, everyone can see - Displays modification and deletion logs for fairness and transparency ## Quick Start - Free, no intrusive ads - Completely offline, simple and easy to use - One-click to join previous players - Record scores with drag and drop of players - Handy tools: Seat shuffling, dice rolling, final settlement (supports grouping two people together for split payments) - Preset and customizable fan point tables, supports Jackpot gameplay ## UIUX - Traditional Chinese and English interface - Supports Dark Mode - Supports iPhone and iPad
Screenshots
Verdict
The clearest difference is price: MJ DB at Free against Riichi Calculator's $1.99. MJ DB also leads on update cadence (every 2 days vs every 3 months). Riichi Calculator's advantage is in-app purchases (none vs 1) and device support (4 vs 2). On ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
MJ DB is free to download; Riichi Calculator costs $1.99 up front. MJ DB sells 1 one-off in-app purchase. Riichi Calculator asks for nothing beyond the download.
Riichi Calculator ships an update every 3 months, MJ DB every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Riichi Calculator | MJ DB |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 8 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Cypress Applications | wilson chung |
In-app purchases
Riichi Calculator
No in-app purchases
MJ DB
- Remove Ads$0.99
Questions
Is Riichi Calculator free?
Is MJ DB free?
Do Riichi Calculator or MJ DB have ads?
Which is updated more often, Riichi Calculator or MJ DB?
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