Door Alert vs ezSmartCloud
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Door Alert
This utility app acts as a simple security monitor for your smartphone. It detects unauthorized door entries or exits and notifies you immediately. It's designed to offer an extra layer of security for families with young children.
- Unauthorized exit/entry detection
- Immediate audible alarm
- Optional silent email/SMS alerts
- Works with or without cellular
- Low battery usage
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Introducing Door Alert, an easy-to-use security solution for smartphones! Monitors for unauthorized exits or entries, alerting you immediately. Just start the app, place the phone against the door, and it’s ready! Visit DoorAlertApp.com for more ideas and uses. The app uses an audible alarm. Optional features include sending an alert silently through email or SMS gateway. An additional peace of mind for families with young kids. Works with or without a cellular account. Notes: • the app is intended to be an additional security measure, not a replacement to conventional home and travel solutions • silent alerts are sent as-is; while every attempt is made to ensure delivery, there may be situations outside our control which can prevent delivery • when running, battery usage is increased by less than 1% per hour
ezSmartCloud
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ezSmartCloud App uses a cloud-based service for Bluetooth Low Energy wireless ADLock application. It is an intuitive user interface and multi-level AES 128 encryption for higher security mobile App. You do not have to duplicate any mechanical key to giving to new users. ezSmartCloud App provides cloud-based Two-Factor Authentication to sign in to the App and devices anywhere securely. ezSmartCloud App only needs an email account and nickname to set up and does not collect any personal information. Multi-level AES 128 encryption and security checks have protected the virtual key by ADLock hardware. ezSmartCloud App has unlimited virtual keys to share and manage by cloud server for instant access through your smart devices. The virtual key can be shared by scanning a QR code from a new user’s smartphone or by searching through registered database nicknames for immediately sharing and revoking from a cloud-based server database. Turn any smartphone into a key and you open a lock by tapping the ADLock on the App’s list. Unlocking the door is just like a regular key, except this virtual key is unique to your smartphone and it cannot be shared or lost as easily as regular keys. It is nice a solution for student housing or employees or special event requires a virtual key to enter. Product Features: - Your smartphone is a smart key now; no mechanical key is required. - Unlimited virtual key for instant access with granting or blocking access anytime and anywhere. - Virtual Key types: (with expiration period option and key credential verification from the cloud-based database) > Permanent users, i.e. Owner and family members or Facility Manager. No internet access requires for the Owner, family members or Facility Manager may require once per day to log in to a cloud-based server database to check the permission status. > Special permission: uses Employee for a long access time, Owner can grant the access time through ezSmartCloud App. Users require using the App and internet to get permission from a cloud-based server database for every access. > Limited time users: The owner can grand the access time when a virtual key has been issued. After the expiration period, this virtual key will be removed automatically. Users require using the App and internet to get permission from a cloud-based server database for every access. > Onetime-unlock option through social media Apps (including email): The owner can send a onetime usage link to the temporary user (the internet service is required). - Each ADLock device can support up to 6 Bluetooth Key Fob. This Bluetooth Key Fob has to pair with each ADLock device. It cannot duplicate Bluetooth Key Fob without pairing in front of the ADLock device. - Most of ADLock devices are battery-operated BLE smart locks. They are very easy to install. You do not have to add any extra wiring requirements. - Know who comes and goes. The App records each ADLock activity log in real-time. - Low battery alert from ADLock Device.
Screenshots
Verdict
The clearest difference is update cadence: ezSmartCloud at every 3 months against Door Alert's every 33 months. Door Alert's advantage is iOS requirement (15.0 vs 17.6). 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.
Door Alert ships an update every 33 months, ezSmartCloud every 3 months. The most recent releases landed on November 13, 2026 and November 11, 2026 respectively.
| Parameter | Door Alert | ezSmartCloud |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 33 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 5 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Russell Harper | Pao Lin Fong |
In-app purchases
Door Alert
No in-app purchases
ezSmartCloud
No in-app purchases








