Comparison

Tresta vs Second number

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

Head to head
About

Tresta

This business phone system offers unlimited calling and texting on a dedicated business number, accessible from your smartphone. It provides essential collaboration features to enhance your company's professional image and communication capabilities.

Highlights
  • Unlimited calling
  • Unlimited texting
  • Business phone number
  • Collaboration features
  • Mobile accessibility
Read full description

Tresta is a business phone system that’s as mobile as you are, with all the calling, texting and collaboration features you need to help your business look its best. Install Tresta on your smartphone today and begin taking advantage of unlimited calling and texting on your business phone number - from anywhere. Note: The Tresta app uses call bridging to facilitate outbound calls. This requires voice and data to access with your iPhone service provider.

About

Second number

This app provides a secondary phone number on your existing device, allowing you to separate personal and professional communications. It offers easy setup, affordable subscription plans, and features like voicemail and call forwarding for enhanced privacy and organization.

Highlights
  • Second phone number on existing device
  • Separate personal and professional life
  • Easy setup in minutes
  • Affordable subscription options
  • Voicemail and call forwarding
  • Customizable caller ID
Features
Read full description

Looking for a reliable mobile app that lets you keep your personal and professional life separate? Look no further than Second Number – the app that offers a second phone line on your existing device! With Second Number, you can get a second phone number without the need for a separate phone or SIM card. This app offers a convenient and affordable solution for anyone who wants to keep their personal and work life separate, or for those who need a temporary number for various purposes. One of the key features of Second Number is its ease of use. You can get started in minutes and start using your second phone line immediately. No need to deal with complex setup processes or lengthy phone calls with customer support. Simply download the app, choose a number from our extensive list of options, and start making and receiving calls and texts right away. Another great feature of Second Number is its affordability. We offer some of the most competitive rates in the industry, making it an excellent choice for individuals and businesses alike. You can choose from a variety of subscription options to fit your budget and usage needs. But that's not all – Second Number also offers a range of additional features to enhance your user experience. These include voicemail, call forwarding, SMS and the ability to customize your caller ID. In summary, Second Number is the perfect solution for anyone who needs a second phone line. With its ease of use, affordability, and a range of additional features, you can stay connected and organized without sacrificing your personal privacy. Try Second Number today and discover the convenience of a second phone line on your existing device. Key features: * Get a second phone number on your existing device * Ease of use – get started in minutes * Affordable rates with a range of subscription options * Additional features including voicemail and call forwarding. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Tresta4 screens
Second number4 screens

Verdict

The call

The clearest difference is rating: Tresta at 4.7 against Second number's 3.8. Tresta also leads on in-app purchases (none vs 7). Second number's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, review sentiment, ratings volume and update cadence 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 number sells 7 in-app purchases, starting at $2.99 per month. Tresta asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Tresta holds the better App Store score, 4.7 against 3.8. Both are backed by a comparable volume of ratings — 12 and 6 respectively. Written reviews complicate that: 17% of Tresta's written reviews are positive against 20% of Second number's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Tresta ships an update every 4 weeks, Second number every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Tresta versus Second number: the parameters behind the verdict, then further details
ParameterTrestaSecond number
PriceFreeFree
Rating4.7 (12 ratings) — better3.8 (6 ratings)
Positive reviews17.0% of reviews20.0% of reviews — better
Number of ratings12 — better6
Update frequencyEvery 4 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size38 MB53 MB
Age rating4+4+
DeveloperTrestaRecorn Limited

Customer experience

Tresta

All ratings12 ratings
Positive91.7%
Neutral0.0%
Negative8.3%
Written reviews47 reviews
Positive17.0%
Neutral2.1%
Negative80.9%

Second number

All ratings6 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews5 reviews
Positive20.0%
Neutral0.0%
Negative80.0%

Bugs and requests

Tresta

Reported bugs

57 issues
  • Text messages no longer show up
  • Error message pops up 50% of the time
  • Can't make calls until force quit
  • Phone locks/shuts off when listening to recordings
  • Buggy and often non-responsive iPhone app
Show 52 more
  • New update = can't make calls
  • Spinning wheel of eternity when calling
  • App glitching
  • No notifications for text messages
  • App directs to website for many options
  • No login option on mobile app
  • Website doesn't show text conversations
  • App won't load texts
  • Intermittently does not alert to new messages
  • App crashes/closes immediately on iOS
  • App doesn't allow picking up calls
  • Automatically hangs up calls
  • Message app deletes itself, won't send, or sends multiple times
  • Caller ID works half the time
  • Can't listen to voicemails
  • Rings once, no opportunity to answer
  • Only allows access to quarter of contact list
  • Deletes input when looking elsewhere
  • Won't connect calls
  • Doesn't send login code
  • App constantly freezes
  • MMS no longer possible
  • Audio gets cut off when phone locks during recordings
  • Slow app tends to lag and not display messages at real time correctly
  • Call quality dropped badly
  • Noticeable delay between speaking and being heard
  • Constant delay and echo
  • Search shows no results
  • Doesn't show contact names
  • Notifications don't show
  • Text messages not being sent/received
  • Calls not connecting to the app
  • Call drops
  • Lost business due to bugs
  • Inconsistent and buggy
  • Problems never fixed, got worse
  • App having issues, engineers working on it
  • Sloppy UI, easy to push wrong buttons
  • Bug after bug, can't get code together
  • Price went up, features stopped working
  • Service feels like perpetual beta
  • App is slow and a pain to use
  • Technology is from years ago
  • Slow when working
  • App loads forever
  • Customer service and support MIA
  • Horrendous customer support
  • Chronically malfunctioning app
  • Poor design
  • Missing key features
  • No call transfer
  • Web app softphone and text messaging not available

Requested features

11 requests
  • Make it possible to have a contact list within the Tresta app
  • Faster response time between multiple tabs
  • Add dark mode option
  • Improve UI to look more like a phone service
  • Ability to block harassment numbers
Show 6 more
  • Add call transfer functionality
  • Web app softphone and text messaging over browser
  • Fix audio cut off when phone locks during recordings
  • Make it possible to cancel membership online
  • Add login option to mobile app
  • Allow users to see who each number belongs to

Second number

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Tresta

No in-app purchases

7 purchases

Second number

Subscriptions3
  • Phone number for 1 month$2.991 Month
  • Phone number for 1 week$3.997 Days
  • Phone number for 1 year$12.991 Year
One-time4
  • SMS Activation$0.99
  • SMS Activation$1.99
  • SMS Activation$2.99
Show 1 more
  • SMS Activation$4.99

Questions

Is Tresta free?
Tresta is free to download, with no in-app purchases.
Is Second number free?
Second number is free to download, with in-app purchases available.
Which has better reviews, Tresta or Second number?
Tresta is rated higher. Tresta averages 4.7 out of 5 from 12 ratings, while Second number averages 3.8 from 6 ratings.
Do Tresta or Second number have ads?
Neither Tresta nor Second number shows ads.
Which is updated more often, Tresta or Second number?
Tresta ships an update every 4 weeks, and Second number every 3 weeks. Most recently, Tresta was updated on November 2, 2026 and Second number on November 3, 2026.

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