Comparison

Second Texting Number vs SMS Alert

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Second Texting Number

Protect your personal number by using a private, disposable phone number for calls and texts. Choose your own number in any area code and receive verification codes without revealing your identity. Manage your privacy with features like auto-response and custom voicemail.

Highlights
  • Unlimited texting and calling
  • Choose your own number
  • Protect your privacy
  • Receive verification codes
  • Separate contacts
  • Auto-response
  • Custom voicemail
Read full description

Safely text & call anyone while protecting your real number. Give out a number that can't be linked back to yours. Guaranteed. Unlisted provides privacy for you and your phone number with supercharged private numbers. UNLIMITED TEXTING & CALLING Send & receive unlimited texts, calls, and picture messages to any US or Canadian number CHOOSE YOUR OWN NUMBER Pick a phone number in any area code. Get as many as you need. PROTECT YOUR PRIVACY Unlisted numbers aren't linked to you or your real number. Protect your privacy when you need to give out a number. CRYSTAL-CLEAR CALLING Enjoy excellent call quality via either an internet (VoIP) connection or your carrier's phone network RECEIVE VERIFICATION CODES Our numbers can receive verification and 2FA codes for registering new accounts anywhere SEPARATE CONTACTS Store contacts that live only in the app and won't appear in your iPhone's contacts DO NOT DISTURB / OPEN HOURS Set a schedule so you only receive calls and notifications when you want them AUTO-RESPONSE Set up a message that will automatically get sent to anyone getting in touch with you OUTGOING CALLER ID If you want, set a name to appear when you call someone INCOMING CALL OPTIONS Decide whether to answer incoming calls on your phone, forward them to another number, or send them to voicemail CUSTOM VOICEMAIL GREETING Set a custom voicemail greeting for each of your numbers. Or keep the generic default if you prefer to stay anonymous. PRIVACY-FIRST: NO ADS, NO TRACKING We don't show ads or do anything with your data that you wouldn't expect. We definitely don't let any 3rd parties do this either. DEDICATED, US-BASED TEAM We're a dedicated US-based team who loves working on Unlisted every day. In fact, we rely on Unlisted numbers every day for our own needs. We promise to never sell your data, show you ads, or betray your privacy. Since 2012, customers have trusted us to provide them new phone numbers for all of their needs, and we hope you will too. If you ever need help, or have something you'd like us to add to Unlisted, please send us an email at support@getunlisted.com. We offer dedicated support and respond personally to each and every email. SUBSCRIPTION DETAILS All plans come with a free trial. You can cancel the trial any time and you won't be charged. Please note that certain functionality may be restricted during the free trial in order to prevent abuse. This may include texting limits or blocks on receiving verification codes. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Subscriptions may be managed from the App Store app. HELP Access the Help Center in the app's menu or email support@getunlisted.com LEGAL & FINE PRINT Terms Of Service: https://www.getunlisted.com/terms Privacy Policy: https://www.getunlisted.com/privacy IMPORTANT: Works in the US and Canadian only. You can only call and text with other US & Canadian numbers. Not for 911 emergency services.

About

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.

Highlights
  • 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
Features
Read full description

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.

Screenshots

Second Texting Number4 screens
SMS Alert4 screens

Verdict

The call

The clearest difference is review sentiment: Second Texting Number at 60% against SMS Alert's 0%. Second Texting Number also leads on rating (4.6 vs 4.0) and update cadence (every 2 weeks vs every 14 months). SMS Alert's advantage is in-app purchases (none vs 11) and iOS requirement (9.0 vs 16.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Second Texting Number sells 11 in-app purchases, starting at $5.99 per month. SMS Alert asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Second Texting Number holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Second Texting Number has 17K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 60% of Second Texting Number's written reviews are positive against 0% of SMS Alert's.

UpkeepUpdate frequency

Second Texting Number ships an update every 2 weeks, SMS Alert every 14 months. The most recent releases landed on October 19, 2026 and October 5, 2026 respectively.

Scorecard7 real differences · 3 level
Second Texting Number versus SMS Alert: the parameters behind the verdict, then further details
ParameterSecond Texting NumberSMS Alert
PriceFreeFree
Rating4.6 (17K ratings) — better4.0 (2 ratings)
Positive reviews60.2% of reviews — better0.0% of reviews
Number of ratings17K — better2
Update frequencyEvery 2 weeks — betterEvery 14 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.09.0 — better
Further details — not scored
Size33 MB7 MB
Age rating4+4+
DeveloperFathomTel, Inc.朝山 马

Customer experience

Second Texting Number

All ratings17,038 ratings
Positive90.0%
Neutral3.9%
Negative6.1%
Written reviews269 reviews
Positive60.2%
Neutral6.7%
Negative33.1%

SMS Alert

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Bugs and requests

Second Texting Number

Reported bugs

3 issues
  • Texts not being received
  • Accounts being blocked/restricted without explanation
  • Purchased numbers not working as expected

Requested features

3 requests
  • Ability to log out of devices
  • International calling/texting support
  • Group messaging functionality

SMS Alert

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

Second Texting Number

Subscriptions7
  • Unlisted Number: Pay as You Go$5.991 Month
  • Unlimited Texting + Calling3 Days trial$14.991 Month
  • Unlimited Texting + Calling7 Days trial$14.991 Month
Show 4 more
  • Second Texting Number7 Days trial$17.991 Month
  • Unlimited Talk + Text3 Days trial$19.991 Month
  • Unlimited Talk + Text7 Days trial$19.991 Month
  • Unlimited Texting & Calling7 Days trial$39.991 Month
One-time4
  • 100 Text Messages$2.99
  • 200 Minutes$7.99
  • Pay as You Go (Prepay 1 Month)$9.99
Show 1 more
  • Change Your Number$19.99
None

SMS Alert

No in-app purchases

Questions

Is Second Texting Number free?
Second Texting Number is free to download, with in-app purchases available.
Is SMS Alert free?
SMS Alert is free to download, with no in-app purchases.
Which has better reviews, Second Texting Number or SMS Alert?
Second Texting Number is rated higher. Second Texting Number averages 4.6 out of 5 from 17K ratings, while SMS Alert averages 4.0 from 2 ratings.
Do Second Texting Number or SMS Alert have ads?
Neither Second Texting Number nor SMS Alert shows ads.
Which is updated more often, Second Texting Number or SMS Alert?
Second Texting Number ships an update every 2 weeks, and SMS Alert every 14 months. Most recently, Second Texting Number was updated on October 19, 2026 and SMS Alert on October 5, 2026.

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