eCall by Otis Elevator Co vs SURAE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eCall by Otis Elevator Co
This app provides a smartphone interface to call elevators from anywhere within a building. It offers features for enhanced passenger convenience and allows users to search for and register with multiple buildings.
- Call elevator from anywhere
- Smartphone interface
- Enhanced passenger convenience options
- Search and register for buildings
- Cloud connection
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YOUR PERSONAL ELEVATOR BUTTON We’ve created the eCall app to provide you with a simple, clear elevator interface for your smartphone. • Call from anywhere in the building • Cellular or internet cloud connection ACCESSIBILITY Optional long walk and extended door dwell for enhanced passenger convenience. One app. Many buildings. • Search • Register • Use Just download to get started.
SURAE
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SURAE remembers where you parked — automatically. Set up the SURAE Hub in your car. When you turn off the engine and walk away, SURAE records where you left it and sends you a notification: "Parked at B2." Nothing to tap, nothing to remember. KEY FEATURES - Automatic parking floor record — no action needed when you park - Manual parking record — GPS outdoors, floor entry indoors - Parking history with date, floor, and duration - Driving log — distance, time, and route - Apple Watch complication - Home Screen widget No account required. Works fully as a guest. Automatic recording requires SURAE devices in your car and in your parking garage.
Screenshots
Verdict
The clearest difference is update cadence: SURAE at every 3 days against eCall by Otis Elevator Co's every 6 months. eCall by Otis Elevator Co's advantage is iOS requirement (12.0 vs 17.0). 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.
eCall by Otis Elevator Co ships an update every 6 months, SURAE every 3 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | eCall by Otis Elevator Co | SURAE |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (11 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 6 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 34 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Otis Elevator Company | Donghun Kim |
In-app purchases
eCall by Otis Elevator Co
No in-app purchases
SURAE
No in-app purchases







