SMS Alert vs Applets Center
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SMS Alert
This app monitors temperature, humidity, analog signals, and power status for various devices. It sends alerts via SMS and phone calls when predefined limits are reached. Users can also query device status via text and schedule periodic reports.
- Temperature and humidity monitoring
- Analog signal monitoring (4-20mA, 0-5V)
- Power monitoring (single/three-phase)
- SMS and phone call alerts
- Remote status query via text
- Scheduled status reporting
- Modbus RTU/TCP cloud platform support
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RTU5023 (temperature and humidity monitoring), RTU5026 (temperature monitoring), RTU5027 (analog monitoring), RTU5028 (power monitoring), RTU5029 (3/single-phase power monitoring) series products are the temperature/humidity/analog power/voltage/monitoring alarm.Can be set up according to the practical application of temperature/humidity/analog/power supply voltage of the high and low limit alarm value, when the current value reaches the alarm value, when will send alarm messages and telephone inform the user. User can from the authorization number by calling equipment number, will automatically reject and immediately send current status messages to BoDaZhe, users can query the current state via text message instructions.Equipment can be set up on a daily basis fixed point and periodic reports the current status messages to the first user.At the same time support the Modbus RTU and Modbus TCP connection cloud platform, can through the network real-time monitoring of the current state. This series product can be used for monitoring temperature and humidity monitoring, 4~20 mA, or 0~5V DC voltage analog signal monitoring, monitoring, three-phase power single-phase power monitoring, monitoring, and is suitable for classrooms, public places, hospitals, railway stations, food warehouses, offices, factories, libraries, LABS and so on, and any needs to be monitored and support.
Applets Center
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Smart Control Center is a general-purpose IoT application. With suitable collectors and controllers, smart scenes and smart control solutions can be quickly built. Main features: # Device Management - Add, delete devices - Device group management - Device information, group information management # Data Management - Real-time data viewing, such as temperature, humidity, current, voltage, etc. - View historical data # Equipment Control - Remote start and stop equipment, support forward and reverse control - Timing control device, such as turning on the device at 5 am every Monday - Cyclic control equipment, such as turning on the equipment for 5 minutes every 1 hour - Intelligent linkage, such as turning on the device when the temperature is greater than 25°C # Personnel Management - Manage personnel by role, administrator, operator, inspector - View personnel operation records # Other Functions - Receive alarms, such as high current, abnormal power failure, etc. - Handle alarms Supporting Data Sources: - All sensors with Modbus RTU protocol - All Collectors with Modbus RTU protocol - Third-party data submitted by s2s Supported Devices: - Smart distribution box - Intelligent greenhouse control box - Smart construction site distribution box
Screenshots
Verdict
The clearest difference is update cadence: Applets Center at every 9 days against SMS Alert's every 14 months. SMS Alert's advantage is iOS requirement (9.0 vs 12.0). 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.
SMS Alert ships an update every 14 months, Applets Center every 9 days. The most recent releases landed on July 7, 2026 and June 1, 2026 respectively.
| Parameter | SMS Alert | Applets Center |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 14 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 7 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | 朝山 马 | 桂花 陈 |
In-app purchases
SMS Alert
No in-app purchases
Applets Center
No in-app purchases









