SMS Alert vs Temp Number
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.
Temp Number
This app provides temporary virtual phone numbers from various countries to receive SMS messages for online services. It helps protect your privacy by not exposing your personal number and offers transparent pricing for disposable numbers.
- Disposable virtual second phone numbers
- Receive SMS online
- Instant account verification
- Protect personal phone number
- Transparent pricing
- Real SIM card providers
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Temp Number offers short-term usage virtual second phone numbers from different countries to receive SMS messages at fair and affordable prices. Get verification SMS messages for any online service without exposing your personal phone number and protect your privacy. What can I do? - Get disposable 2nd virtual SMS number instantly - Receive SMS online - Easy accounts verification - Protect your real number - Fair and transparent pricing Is it free? No. The app is available to download for free, but you will have to add funds to your balance inside the app to order numbers. You will see easy and transparent pricing depending on countries and services before each order. How to use the app? Step 1: Enter the country and name of the service you need. If there is no service in the list, choose the “other” option. Step 2: After selecting country and service, you will see the price per activation and can get the number ( in case you have no funds, you should add credits to your balance) Step 3: Copy the number and paste it on the service, website, or app you have selected. Step 4: As soon as the service sends you the SMS, it will be available inside the app. You will usually have up to 20 minutes to get the SMS. No message received until the number expires? - No payment will be made. Please note : - All numbers are temporary (disposable) numbers and are self-destructed, usually within 20 minutes. So please do not use it if you’ll need it for a long time. - We primarily use trusty and reliable providers with real SIM cards and not virtual VoIP numbers with lower quality. - The price is per successful activation only and may vary depending on the service and country chosen. All trademarks, product names, and company names or logos mentioned herein, inside the app, and on preview screenshots are the property of their respective entities. Terms of Service: https://temp-number.org/app/terms-of-service Privacy policy: https://temp-number.org/app/privacy-policy Visit us: https://temp-number.org Contact us: support@temp-number.org
Screenshots
Verdict
The clearest difference is rating: SMS Alert at 5.0 against Temp Number's 4.1. SMS Alert also leads on in-app purchases (none vs 7) and ads (none vs shown). Temp Number's advantage is update cadence (every 2 months vs every 14 months) and review sentiment (25% vs 0%). On price 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. Temp Number sells 7 one-off in-app purchases. SMS Alert asks for nothing beyond the download.
SMS Alert holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Temp Number has 619 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of SMS Alert's written reviews are positive against 25% of Temp Number's, so the app with the better star average is not the one people write more warmly about.
SMS Alert ships an update every 14 months, Temp Number every 2 months. The most recent releases landed on November 2, 2026 and November 11, 2026 respectively.
| Parameter | SMS Alert | Temp Number |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.1 (619 ratings) |
| Positive reviews | 0.0% of reviews | 25.0% of reviews — better |
| Number of ratings | 1 | 619 — better |
| Update frequency | Every 14 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 7 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | 朝山 马 | Privatix LTD |
Customer experience
SMS Alert
Temp Number
Bugs and requests
SMS Alert
Not enough reviews yet to summarise bugs or requests.
Temp Number
Reported bugs
3 issues- Incorrect SMS codes provided
- Numbers not working for verification
- Payments not reflected in account balance
Requested features
2 requests- Lower minimum deposit amount
- Add Apple Pay as payment option
In-app purchases
SMS Alert
No in-app purchases
Temp Number
- 1 Activation$0.49
- 5 Activations$2.29
- 10 Activations$4.39
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- 5 Credits$4.99
- 15 Activations$6.19
- 25 Credits$24.99
- 50 Credits$49.99









