MM vs SKI+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MM
Enhance organizational communication and productivity with a business-grade messaging platform. It integrates text, voice, and group features with enterprise-level security and contact management.
- Text and voice messaging
- Group chat with filtering
- Enterprise contact integration
- Business-grade security
- Message tagging and categorization
- Stickers and polling for collaboration
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利用 MM 一同提升組織溝通競爭力! MM 是 Openfind MailCloud 企業雲端服務所推出的全新產品: 結合文字、語音訊息傳遞、群組共同標籤等符合企業用戶需求的功能,同時也能讓組織內的溝通更即時有效率,提升內部競爭力。 ◎ 語音訊息、文字訊息、音訊傳送。 ◎ 可直接與 MailCloud 企業雲端服務的通訊錄整合。 ◎ 輕鬆成立聊天群組,提供各式過濾功能,即時找出最重要的工作訊息。 ◎ 企業等級的訊息平台,最符合企業資安需求的應用工具。 ◎ 利用各式文字 Tag,分類不同的訊息種類。 ◎ 趣味貼圖與投票功能,增加團隊的合作效率。
SKI+
A secure messaging app that uses end-to-end encryption for private communication. All message encryption and decryption happen on your device, ensuring your conversations are protected from unauthorized access.
- End-to-end message encryption
- Decentralized encryption on device
- Secure communication
- Photo and video sharing
- Location sharing
- Contact integration
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SKI+ 是一個點對點訊息加解密的通訊APP,使用者在互傳訊息時,可以在非常安全狀態下進行,不會被駭客竊取通訊訊息. 歡迎下載使用. 訊息的加密及解密計算由手機端完成 伺服器端無法得知加解密細節 因此為對使用者更有隱私保障的訊息系統 所用到的「敏感個資」包括: .MobilePhone Number(電話號碼) 電話號碼僅用來做簡訊驗證,及註冊身份使用,不會做任何其它用途。 所用到的「敏感隱私權」包括: ・Notifications(通知) 該權限讓App能接收推播訊息。 ・Camera(相機) 該權限用於拍照及錄製影像。使用者得以傳送照片及影音訊息,拍照以上傳大頭照。 ・Microphone(麥克風) 該權限用於錄製並發送聲音訊息、或影片訊息。 ・Location Services(位置) 該權限用於Google Map以顯示地圖及位置。使用者得以發送位置訊息。 ・Photos(相册) 該權限讓使用者可以發送圖片或影片訊息。 ・Contacts(聯絡人) 該權限用於讀取使用者的聯絡人清單。使用者得以從聯絡人清單中直接添加好友。 使用問題或建議 歡迎將相關描述或抓圖寄到: ziv@citi.sinica.edu.tw 我們會盡快處理您的問題
Screenshots
Verdict
The clearest difference is update cadence: SKI+ at every 3 weeks against MM's every 2 months. MM's advantage is iOS requirement (13.0 vs 15.6). On price, review sentiment, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
MM ships an update every 2 months, SKI+ every 3 weeks. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.
| Parameter | MM | SKI+ |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | 66.7% of reviews |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 16 MB | 127 MB |
| Age rating | 4+ | 4+ |
| Developer | Openfind Inc. | Academia Sinica Research Center for Information Technology Innovation |
Customer experience
MM
SKI+
In-app purchases
MM
No in-app purchases
SKI+
No in-app purchases









