千仞数字设施 vs eCall C
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
千仞数字设施
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可对建筑中消防、电梯、视频、门禁、停车场、供配电、给排水、中央空调等设备的状态数据、运行数据、能耗数据进行监测、分析，对异常数据实时告警与跟踪处理，对运维人员巡检、维修、保养、抄表等日常任务进行管理，从而在安全、便捷、绿色、高效的角度全面的保障设备的日常运行。
eCall C
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OTIS eCall C can call elevator via Bluetooth. The elevator would be summoned when you trigger "up & down" button in app, and then you can register the destination floor when you get into the cabin via app. Before calling elevator, you need to add OTIS elevator in the APP in advance, and enable your mobile Bluetooth. KEY FEATURES: -Summon elevator and select destination floor -Add multiple buildings and change whenever you need.
Screenshots
Verdict
The clearest difference is update cadence: eCall C at every 3 months against 千仞数字设施's every 7 months. eCall C also leads on iOS requirement (12.0 vs 15.1). 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.
千仞数字设施 ships an update every 7 months, eCall C every 3 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.
| Parameter | 千仞数字设施 | eCall C |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 7 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 12.0 — better |
| Further details — not scored | ||
| Size | 82 MB | 34 MB |
| Age rating | 4+ | 17+ |
| Developer | Shenzhen Zhongwu Internet Technology Development Co., Ltd. | Otis High Rise Elevator (Shanghai) Co.,Ltd. |
In-app purchases
千仞数字设施
No in-app purchases
eCall C
No in-app purchases
