易佳服务 vs eCall C
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
易佳服务
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易佳服务是一个旧楼加建电梯“一站式”服务平台的移动办公系统，内容包括即时通信，项目管理，CRM管理，发现模块 （即客服管理的常用工具等），个人设置等功能模块，能够为客户的加建电梯需用提供高效标准的服务及进行 有效客户关系管理等。 注意： 1、本移动办公系统只供企业内部或关联供应商使用，个人用户请勿下载。 2、本移动办公系统需要配合公司的易佳梯服务平台一同使用。
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: 易佳服务 at monthly against eCall C'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.
易佳服务 ships an update monthly, eCall C every 3 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.
| Parameter | 易佳服务 | eCall C |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 63 MB | 34 MB |
| Age rating | 4+ | 17+ |
| Developer | 广东易佳梯科技有限公司 | Otis High Rise Elevator (Shanghai) Co.,Ltd. |
In-app purchases
易佳服务
No in-app purchases
eCall C
No in-app purchases
