Comparison

Wi vs RiichiDeck

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

Head to head
About

Wi

This app visualizes your Wi-Fi environment with speed measurements and heatmaps. It helps identify if slow internet is due to your line or router, aiding in creating a more comfortable Wi-Fi experience. It also displays current Wi-Fi connection details.

Highlights
  • Internet and Wi-Fi speed measurement
  • Wi-Fi speed heatmap creation
  • Load floor plans for heatmap visualization
  • Display current Wi-Fi connection information
  • Access router settings screen
Features
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「Wi-Fiミレル」は、ご自宅やオフィスなどのWi-Fi環境を計測することができるアプリです。 現在接続されているインターネットの速度、Wi-Fiの速度を数値やヒートマップで“見える化”することで、より快適なWi-Fi環境を実現するお手伝いをします。 光回線などのインターネット側の速度とWi-Fi通信のみの速度とそれぞれのスピードがわかりますので、Wi-Fiの速度が遅いなどのお悩み時に回線の問題か、Wi-Fiルーターの問題かの区別をつけるときに大変便利です。 弊社Wi-Fiルーター以外をご利用の場合でも、本アプリを使って計測することができます。 ・速度測定 インターネットのダウンロード、アップロードの速度と、Wi-Fiのネットワーク速度を計測します。数字が小さいほど遅く、大きいほど快適であることを示しています。 ・ヒートマップ 場所ごとにWi-Fi速度を計測することで、ご自宅やオフィス全体のWi-Fiの速度をわかりやすく把握できるヒートマップを作成できます。 間取り図も読み込みできますので、場所ごとの計測結果が一目でわかります。 ・Wi-Fi情報の表示 現在接続しているWi-Fiについての各種情報(SSID、IPアドレス、サブネットマスク等)を表示します。 また、ルーターの設定画面を開くことができます。 ※以前は電波強度測定機能もありましたが、iOS16以降利用できなくなったため、機能を削除しています。

About

RiichiDeck

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RiichiDeck is an all-in-one companion app designed to streamline 4-Player Japanese Riichi Mahjong, covering score calculation assistance, match logging, mahjong timers, and tournament/league management powered by Web Viewer. [Key Features] * Intuitive Score Entry & Calculation Assistant Quickly and accurately record final scores and tenbo transfers with fu/han input helpers and point declaration assistants. * Mahjong Clock (Match Timer) Equipped with remaining time warning sounds and vibration alerts to keep game pace smooth and on schedule. * Tournament Management, Pairing PDF & Table QR Sync [NEW] Simply scan the table QR code generated on the Web Viewer (browser) pairing PDF with your smartphone camera to automatically set up the table number, round, seated player names, and rule presets in one tap. * Live Tournament Leaderboard & Visual Analytics (Web Viewer Sync) Match results from each table are reflected on the tournament leaderboard in real-time (optimized for big-screen projectors). Easily share score trend charts and player performance stats via URL or image cards. * Mahjong Glossary (All 38 Yaku & Rules Guide) Search and reference all 38 Yaku conditions, han values, fu calculations, and essential mahjong terminology inside the app. Perfect for quick rule checks and beginner support. * Match Memo for Each Hanchan Record custom notes (up to 300 characters) such as Yakuman milestones, game reviews, or reflections on each match card. * Full 5-Language Multilingual Support The app interface, settings, and Web Viewer seamlessly support English, Japanese, Traditional Chinese, Simplified Chinese, and Korean. Ideal for international tournaments and global friendlies. * No Registration Required & Privacy-Focused Design All match data is stored safely on your device, ready to use immediately without any sign-up or login. When using tournament sync or Web Viewer sharing, data is securely relayed temporarily without requiring any user account. * Note: Designed exclusively for 4-Player Japanese Riichi Mahjong (3-Player / Sanma is not supported). [Terms of Use & Privacy Policy] * Terms of Use (EULA / Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ * Service Terms: https://riichideck.com/terms.html * Privacy Policy: https://riichideck.com/privacy.html

Screenshots

Wi4 screens
RiichiDeck4 screens

Verdict

The call

The clearest difference is in-app purchases: Wi at none against RiichiDeck's 2. RiichiDeck's advantage is ads (none vs shown) and update cadence (every 2 days vs every 7 months). On price, 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. RiichiDeck sells 2 in-app purchases, starting at $0.99 per month. Wi asks for nothing beyond the download.

UpkeepUpdate frequency

Wi ships an update every 7 months, RiichiDeck every 2 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
Wi versus RiichiDeck: the parameters behind the verdict, then further details
ParameterWiRiichiDeck
PriceFreeFree
Rating4.6 (16 ratings) — better—
Positive reviews32.0% of reviews—
Number of ratings16 — better—
Update frequencyEvery 7 monthsEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size34 MB52 MB
Age rating4+4+
DeveloperI-O DATA, INC.Shinya Fukumura

In-app purchases

None

Wi

No in-app purchases

2 purchases

RiichiDeck

Subscriptions1
  • RiichiDeck Pro (Monthly)$0.991 Month
One-time1
  • RiichiDeck Pro (Lifetime)$6.99

Questions

Is Wi free?
Wi is free to download, with no in-app purchases.
Is RiichiDeck free?
RiichiDeck is free to download, with in-app purchases available.
Do Wi or RiichiDeck have ads?
Wi shows ads; RiichiDeck does not.
Which is updated more often, Wi or RiichiDeck?
Wi ships an update every 7 months, and RiichiDeck every 2 days. Most recently, Wi was updated on October 24, 2026 and RiichiDeck on October 10, 2026.

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