Comparison

Second Texting Number vs Karrier One

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

Karrier One

This app integrates communication tools like calling and texting with digital finance management, including a blockchain wallet and AI assistance for transactions. It offers a unified platform for everyday communication, mobile connectivity, and digital asset management.

Highlights
  • VoIP calls and global texting
  • Purchase and manage phone numbers/plans
  • Integrated Sui blockchain wallet
  • Phone-number-based crypto transactions
  • AI Butler for transaction assistance
  • Unified communication and finance platform
Features
Read full description

Connectivity Without Borders Bring your calls, texts and wallet payments together with Karrier One. Manage mobile connectivity and send or receive supported digital assets through your Sui wallet, all in one app. Karrier One brings communication and digital finance together in one powerful mobile app. With Karrier One, you can make calls, send texts, manage your Sui blockchain wallet, and use AI Butler to simplify transactions. Instead of relying only on long wallet addresses, Karrier One helps make sending and receiving easier by connecting payments to a phone-number-based experience. Whether you are looking for everyday communication or a smarter way to interact with blockchain, Karrier One gives you a single app for mobility, messaging, and digital assets. Key features Call and text with ease Make VoIP calls and send messages to phone numbers worldwide from one simple interface. Buy a phone number Get your own number directly through the app and stay connected for voice and messaging. Activate a phone plan Purchase a mobile plan for cellular mobility and manage your connectivity in one place. Sui wallet built in Store, send, receive, and manage supported digital assets through the integrated wallet experience. Send using a phone number Move funds more easily with a phone-number-based flow instead of dealing only with complex wallet addresses. AI Butler assistance Use AI Butler to help initiate transactions, guide actions, and make the wallet experience more intuitive. Unified experience Karrier One combines communications, mobility, and blockchain utility into one modern app. Why Karrier One Karrier One is designed for users who want more from a mobile app: communication, connectivity, and digital finance working together in a seamless experience. From calling and texting to managing your wallet and activating service, Karrier One puts essential tools in one place. Download Karrier One and experience a new way to connect, transact, and move.

Screenshots

Second Texting Number4 screens
Karrier One4 screens

Verdict

The call

The clearest difference is review sentiment: Second Texting Number at 61% against Karrier One's 0%. Second Texting Number also leads on rating (4.6 vs 1.0) and ratings volume (17K vs 1). Karrier One's advantage is in-app purchases (none vs 11). On price, update cadence, 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. Karrier One asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Second Texting Number holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Second Texting Number has 17K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 61% of Second Texting Number's written reviews are positive against 0% of Karrier One's.

UpkeepUpdate frequency

Second Texting Number ships an update every 2 weeks, Karrier One every 4 weeks. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Second Texting Number versus Karrier One: the parameters behind the verdict, then further details
ParameterSecond Texting NumberKarrier One
PriceFreeFree
Rating4.6 (17K ratings) — better1.0 (1 ratings)
Positive reviews60.8% of reviews — better0.0% of reviews
Number of ratings17K — better1
Update frequencyEvery 2 weeks — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size33 MB59 MB
Age rating4+17+
DeveloperFathomTel, Inc.Karrier One Inc

Customer experience

Second Texting Number

All ratings17,038 ratings
Positive90.0%
Neutral3.9%
Negative6.1%
Written reviews273 reviews
Positive60.8%
Neutral6.6%
Negative32.6%

Karrier One

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

Karrier One

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

Karrier One

No in-app purchases

Questions

Is Second Texting Number free?
Second Texting Number is free to download, with in-app purchases available.
Is Karrier One free?
Karrier One is free to download, with no in-app purchases.
Which has better reviews, Second Texting Number or Karrier One?
Second Texting Number is rated higher. Second Texting Number averages 4.6 out of 5 from 17K ratings, while Karrier One averages 1.0 from 1 ratings.
Do Second Texting Number or Karrier One have ads?
Neither Second Texting Number nor Karrier One shows ads.
Which is updated more often, Second Texting Number or Karrier One?
Second Texting Number ships an update every 2 weeks, and Karrier One every 4 weeks. Most recently, Second Texting Number was updated on November 1, 2026 and Karrier One on October 24, 2026.

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