MJ Calc vs Pay Me Back!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MJ Calc
This utility app simplifies Mahjong scoring calculations. It offers a user-friendly interface for quick and accurate score determination. Ideal for Mahjong players seeking a convenient scoring tool.
- Quick Mahjong score calculation
- Easy to use interface
- Accurate score determination
- Convenient scoring tool
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MJ Calc 可助你快速計算麻雀分數，簡單易用。
Pay Me Back!
Easily track and settle shared expenses with friends. Record event costs and get clear instructions on who owes whom, and how much. You can also mark payments as settled.
- Record event expenses
- Calculate who owes whom
- Specify payment amounts
- Track payment status
- Share settlement details
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App made your expense and payment easy! Troubled with complicated payment transactions with friends? "Pay Me Back" can help you record the expenses of your events, and tells you how (how much and to/from whom) you can pay settle the payment among event members. Just input the expense detail, you will get the result and share with your friends! You may also record payment status.
Screenshots
Verdict
The clearest difference is in-app purchases: Pay Me Back! at none against MJ Calc's 1. MJ Calc's advantage is ads (none vs shown) and update cadence (every 2 months vs every 6 months). On price, rating and device support 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
Both are free to download. MJ Calc sells 1 one-off in-app purchase. Pay Me Back! asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for MJ Calc against 5.0 for Pay Me Back!. That said, the two scores are not equally well evidenced: MJ Calc has 15 ratings behind it against 3, so its average is the more settled of the two.
MJ Calc ships an update every 2 months, Pay Me Back! every 6 months. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.
| Parameter | MJ Calc | Pay Me Back! |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (15 ratings) | 5.0 (3 ratings) |
| Positive reviews | — | 75.0% of reviews |
| Number of ratings | 15 — better | 3 |
| Update frequency | Every 2 months — better | Every 6 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.1 — better | 14.0 |
| Further details — not scored | ||
| Size | 34 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Ka Ho Lam | Fung Yiu Fu |
Customer experience
MJ Calc
Pay Me Back!
In-app purchases
MJ Calc
- 移除廣告$0.99
Pay Me Back!
No in-app purchases
