SKI+ vs Jrsys ZTP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Read full descriptionHide full description
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
Jrsys ZTP
Read full descriptionHide full description
This app is an ZTP app developed by Jrsys Onternation Corp. Jrsys ZTP one-time password two-factors authentication product is widely used by public and financial sectors. Users can apply it to remote VPN login, web and Windows/Linux/Unix server 2FA authentication login.
Screenshots
Verdict
The clearest difference is update cadence: SKI+ at every 3 weeks against Jrsys ZTP's every 3 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
SKI+ ships an update every 3 weeks, Jrsys ZTP every 3 months. The most recent releases landed on September 17, 2026 and July 24, 2026 respectively.
| Parameter | SKI+ | Jrsys ZTP |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 127 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Academia Sinica Research Center for Information Technology Innovation | JRSYS INTERNATIONAL CORP. |
In-app purchases
SKI+
No in-app purchases
Jrsys ZTP
No in-app purchases
