Comparison

WhenDo vs Simple Mahjong Calculator

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

Head to head
About

WhenDo

Easily manage and visualize time differences with friends and loved ones. Share your availability visually using photos instead of clock icons, eliminating confusing time zone conversations. Works offline for convenient access anytime, anywhere.

Highlights
  • Visual time zone display
  • Photo-based friend representation
  • Simplified availability sharing
  • Offline functionality
  • Selfie integration for cities
  • Easy friend setup
Features
Read full description

*You don't need to think about time zones* WhenDo shows your time below. The time of your friends/lovers up top. WhenDo prefers photos over clock icons. Because we’re all beautiful. No more confusing conversations to see when your friends are free. WhenDo makes it easy to share a time, visually. WhenDo works offline so you can check any city, at any time. More of this: • Take a selfie & set your city • Setup your friends • Pick a time that looks good • Share it Less of this: - When do you want to talk? -- Sunday? - Could work. At what time?? -- I’m free at 9. - Do you mean 9:00, my time? -- Haha. Nope. I meant 9 here. - You know that’s 4am for me? -- Oh. :(

About

Simple Mahjong Calculator

Effortlessly track mahjong scores with this professional scoring tool. It automates calculations, validates scores, and saves game history, offering a clean interface and multi-language support for players worldwide.

Highlights
  • Automated score calculation
  • Real-time total display
  • Score validation
  • Automatic data saving
  • Multi-language support
  • Cross-platform compatibility
Features
Read full description

Mahjong Calculator - Your Ultimate Mahjong Companion Still using pen and paper to track mahjong scores? Tired of recalculating after each round and making errors? This professional mahjong calculator will revolutionize your mahjong experience! Key Features: Smart Scoring System - Supports standard 4-player mahjong scoring - Automatically accumulates scores for each round with real-time total display - Smart validation ensures each round's total equals zero - Clear win/loss amount display for instant settlement Multi-Language Support Fully supports 14 languages including Traditional Chinese, Simplified Chinese, English, Japanese, Korean, Spanish, French, German, and more, catering to players worldwide. The system automatically detects your device language for the most suitable interface. Automatic Data Saving - Auto-saves game records to prevent data loss - View historical game results anytime - Supports continuous multi-round tracking Clean and Intuitive Interface - Minimalist design for easy operation - Large buttons for quick score entry - Instant calculation results without delay Cross-Platform Support Available for both iOS and Android systems, delivering the same premium experience whether you use iPhone or Android devices. Use Cases: - Family gathering mahjong games - Casual entertainment after dinner with friends - Professional scoring for mahjong clubs - Score tracking for offline mahjong tournaments Why Choose Us? Developed by a professional team with deep understanding of mahjong players' needs. We're committed to providing the simplest and most accurate scoring experience, letting you focus on the game itself without worrying about tedious calculations. Whether you're a mahjong beginner or seasoned player, this calculator is your best choice. Download now and make every mahjong game more enjoyable and hassle-free!

Screenshots

WhenDo4 screens
Simple Mahjong Calculator2 screens

Verdict

The call

The clearest difference is iOS requirement: WhenDo at 9.0 against Simple Mahjong Calculator's 14.0. On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
WhenDo versus Simple Mahjong Calculator: the parameters behind the verdict, then further details
ParameterWhenDoSimple Mahjong Calculator
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—1 — better
Update frequency—Every 3 days
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better14.0
Further details — not scored
Size50 MB16 MB
Age rating4+4+
DeveloperKent HumphriesZhegang Xu

Customer experience

WhenDo

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Simple Mahjong Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

WhenDo

No in-app purchases

None

Simple Mahjong Calculator

No in-app purchases

Questions

Is WhenDo free?
WhenDo is free to download, with no in-app purchases.
Is Simple Mahjong Calculator free?
Simple Mahjong Calculator is free to download, with no in-app purchases.
Do WhenDo or Simple Mahjong Calculator have ads?
Neither WhenDo nor Simple Mahjong Calculator shows ads.

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