Comparison

JhongCalc vs DayTimer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

JhongCalc

This utility app enhances the Japanese Mahjong experience by acting as a score display, calculator, and sheet manager. It offers strategic insights, automatic score calculation, and customizable rules. Export score sheets for further analysis.

Highlights
  • Score display with rank and score difference
  • Automatic score calculation
  • Multiple input methods for scores
  • Voice guidance for rounds
  • Record and sort score sheets
  • Customizable game rules
  • Export score sheets in CSV format
Features
Read full description

JhongCalc is a utility app for Japanese style MahJong game. It works as Score Display, Score Calculator and Score Sheet Manager. Put your iPad on the center of table and launch this app. You will be able to enjoy more comfortable Mahjong experience. Main Features • Score Display: JhongCalc shows not only the current score but also your rank and the difference from the top player. By grasping other player's scores, you will be able to play more strategic games. · Score Calculator: When someone wins, all you need to do is inputting the winning score. Other complicated calculation is processed automatically. In addition, you can chose input method from three ways: Direct, Constant and Wizard. ・Voice Guidance: At the start of each hands, voice guidance function announces the round number. ・Score Board: JhongCalc records all score of games and show you them. You can sort score sheets by total score, average score, winning rate or other element. · Customizability of rules: You can customize rules (starting score, winners' bonus etc.) as you like. · Export Score Sheet: You can export score sheetss in CSV format. You can view and share them with other spreadsheet apps. (Using this feature requires to purchase an Unlock limitation item.) *This app is free to use, but the functionality is limited to a maximum of four Mahjong players. In addition, advertisements are displayed when starting a game or saving game results. If you wish to continue using the app, please purchase a paid item to remove the restrictions. For details, please check the in-app store.

About

DayTimer

Features
Read full description

ToDoタスクをデザインする! 人生タイマーで、人生の現在地を常に意識できる! このアプリで毎日のうっかりや、流されることがなくなります。 期限のあるイベントまでのカウントダウンは勿論、記念日など毎年リピートするものをメモと色で設定できます。 そして、通知も多く設定できるので忘れることはありません。 稀にしかやらない、胃カメラ、オイル交換など前回いつやったのかを管理するのにも便利です。 数が多くなっても、ソート機能が充実。同じタブをもう1度押すと並び順が上下逆になります。 さらに、営業日カウント(平日のみで残日数表示)や通知も複数設定可。祝日は具体的に何の日なのかも表示。 あと1つしか設定できませんが、人生タイマーを使うことができます。 平均寿命から設定もできますが、ご自分で持病や体質を考慮して自分の寿命を設定すると残りの人生の日数、消化率を表示します。 我々人間は、目の前のことに反応し、流されてしまう意志の弱い人が私を含めて多いと思います。 人生を俯瞰的に常に見続けることにより、今の生き方、取り組む姿勢は変わります。 機種変更した時に設定内容を引き継げる機能も用意しています。 この機能は、複数のデバイスで設定内容を共有する機能としても便利です。 このアプリで皆さまの生活がより良いものになるように今後もアップデイトしていきます。

Screenshots

JhongCalc4 screens
DayTimer4 screens

Verdict

The call

The clearest difference is in-app purchases: DayTimer at none against JhongCalc's 1. DayTimer also leads on update cadence (every 3 weeks vs every 7 months). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. JhongCalc sells 1 one-off in-app purchase. DayTimer asks for nothing beyond the download.

UpkeepUpdate frequency

JhongCalc ships an update every 7 months, DayTimer every 3 weeks. The most recent releases landed on September 22, 2026 and February 20, 2026 respectively.

Scorecard2 real differences · 8 level
JhongCalc versus DayTimer: the parameters behind the verdict, then further details
ParameterJhongCalcDayTimer
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews85.7% of reviews—
Number of ratings1 — better—
Update frequencyEvery 7 monthsEvery 3 weeks — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size10 MB216 MB
Age rating4+4+
DeveloperSTUDIO-KURAZOOMO Inc.

In-app purchases

1 purchases

JhongCalc

One-time1
  • Unlock Limitations$7.99
None

DayTimer

No in-app purchases

Questions

Is JhongCalc free?
JhongCalc is free to download, with in-app purchases available.
Is DayTimer free?
DayTimer is free to download, with no in-app purchases.
Do JhongCalc or DayTimer have ads?
Both JhongCalc and DayTimer show ads.
Which is updated more often, JhongCalc or DayTimer?
JhongCalc ships an update every 7 months, and DayTimer every 3 weeks. Most recently, JhongCalc was updated on September 22, 2026 and DayTimer on February 20, 2026.

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