iSurveillance Mobile Viewer vs unitCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iSurveillance Mobile Viewer
Monitor live video feeds and playback recorded footage from your mobile devices. This application connects to an Authority server to manage your surveillance system, offering real-time viewing, snapshots, and alarm notifications.
- Live video monitoring
- Playback recorded footage
- Snapshot images
- PIP screen feature
- Alarm push notifications
- Timeframe and camera search
Read full descriptionHide full description
Overview iSurveillance Mobile Viewer allows user to monitoring video and playing recorded via your mobile devices. It works seamlessly with iSurveillance VMS, consists of Authority server to manages all of the UI groups. iSurveillance Mobile Viewer allows user can monitor live view and playback、snapshot in real time image, besides, it supports PIP screen feature on your mobile devices using. Anytime, anywhere, just via the 3G,4G or wifi connections with your mobile devices, this is significant keeping your vision and saving your time. For more information about iSurveillance Mobile Viewer, please link the websites http://isurveillance.iisigroup.com/Support/Download Main features l According to user’s VMS authority server, it is able to create many profiles in your mobile devices. l Each of live view in Mobile Viewer works depend on configuration of iSurveillance web client. l When login to Mobile Viewer, user will be able to separate monitoring any different camera of groups or direct appearing all cameras in one group. l iSurveillance Mobile Viewer places a PIP screen feature that can instant playback and monitor in real time video. l It is able to snapshot the image when user is playing recorded l Timeframe search、camera search for playback. l Receive alarm push notification. l Automatically detects the language in Mobile.
unitCalc
Read full descriptionHide full description
unitCalc 是一款適用於 iPhone 與 iPad 的計算機與台灣常用單位換算工具。 主要功能: • 四則運算、平方、立方、平方根、立方根及記憶功能 • 十萬至兆等大數快捷鍵 • 重量、長度、面積與貨幣換算 • 單位選項可橫向捲動,支援直向與橫向操作 • 匯率快取,可於離線時使用最後一次成功取得的資料 換算單位: • 重量:公克、公斤、台斤、台兩、英磅、盎司 • 長度:公尺、公分、台尺、台寸、英尺、英寸 • 面積:台坪、台畝、台分、台甲、平方公尺、公頃、平方英尺 • 貨幣:台幣、美元、日圓、歐元、英鎊、韓元、越南盾、港幣、人民幣 貨幣換算主要採用臺灣銀行對台幣現金賣出匯率;無現金匯率時使用即期賣出匯率。臺灣銀行服務無法使用時,App 會使用中央銀行官方資料計算參考匯率,並顯示來源與資料時間。 匯率資料僅供換算參考,不代表任何金融機構的實際交易報價;實際匯率應以交易時相關金融機構公告為準。unitCalc 為獨立開發工具,與臺灣銀行及中央銀行沒有隸屬、合作、代理或背書關係。
Screenshots
Verdict
The clearest difference is update cadence: iSurveillance Mobile Viewer at every 2 weeks against unitCalc's monthly. iSurveillance Mobile Viewer also leads on iOS requirement (8.0 vs 15.0). 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.
iSurveillance Mobile Viewer ships an update every 2 weeks, unitCalc monthly. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.
| Parameter | iSurveillance Mobile Viewer | unitCalc |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| Update frequency | Every 2 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 9 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | International Integrated Systems, Inc. | 培祐 黃 |
In-app purchases
iSurveillance Mobile Viewer
No in-app purchases
unitCalc
No in-app purchases
Questions
Is iSurveillance Mobile Viewer free?
Is unitCalc free?
Do iSurveillance Mobile Viewer or unitCalc have ads?
Which is updated more often, iSurveillance Mobile Viewer or unitCalc?
Other comparisons















