Comparison

SmartLine Second Phone Number vs Second Phone Number'

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

Head to head
About

SmartLine Second Phone Number

Get a dedicated second phone number for your business to maintain privacy and professionalism. This app ensures calls are business-related, offers a spam filter, custom voicemail, and voicemail-to-text transcription. Manage your business communications efficiently with organized history and timely notifications.

Highlights
  • Dedicated business phone number
  • Professional call quality (not VoIP)
  • Spam call filtering
  • Customizable voicemail greetings
  • Voicemail to text transcription
  • Set business hours for calls
  • Organized call and text history
Read full description

SmartLine is a second phone number for your business. When you receive a call through SmartLine, you know it’s for business so you can answer professionally. When you call or text through SmartLine, customers see your new business phone number so your personal number stays private. - Professional Quality. Calls use your cellular connection – NOT VOIP – to give you the call clarity and reliability you need to sound professional. - Spam Call Filter. Answer calls with confidence because spam calls are sent directly to voicemail. - Custom Voicemail. Record a custom voicemail greeting to prompt callers to leave a message. - Voicemail to Text. Get your business voicemail automatically transcribed to text to save you time. - Set Business Hours. Choose when you’re available for business calls and send callers to voicemail after hours. - Stay Organized. See your conversation history of calls, texts, pictures, and voicemail, organized by contact. - Stay Notified. Be notified and follow up quickly whenever you have missed calls, voicemail messages, or texts. -- Terms -- An existing SmartLine subscription is required to use this app. Currently available in the US only. SmartLine will automatically renew via iTunes, unless you cancel 24 hours before the the end of the current billing period. Easily manage and cancel your SmartLine 2nd phone number at any time through your iTunes subscription settings. If you didn't purchase SmartLine through iTunes, you can manage your subscription through the GoDaddy website. Terms of use: https://www.godaddy.com/legal-agreements.aspx Privacy policy: https://www.godaddy.com/Agreements/Privacy.aspx

About

Second Phone Number'

Obtain a secondary phone number for private calls and texts without needing an extra SIM card. This app allows for international calling and texting, offering a separate line for personal or business use. Keep your primary number private while managing multiple contacts and communications.

Highlights
  • Acquire a second phone number
  • Make private calls and texts
  • International calling and texting
  • Send MMS messages
  • Multiple phone number support
  • Choose numbers from U.S. or Canada area codes
Features
Read full description

NEED A SECOND PHONE NUMBER FOR PRIVATE CALLS AND TEXTS? The Second Phone Number app offers a convenient way to acquire a second phone number for your personal needs without the need for an extra SIM card. This app also enables international calling and texting. You can select a second phone number and make calls without revealing your real number. Maintain your international number for as long as you wish, and add more minutes and SMS to your Second Phone Number balance. Enjoy the cheapest rates for in-app credits to make calls worldwide from your second phone number! Transform your phone into a full-featured business phone with the Second Phone Number App, providing: • Choose any number from almost all area codes across the U.S. or Canada. • Get a second phone number for calls and texting. • Make calls to 100+ countries. • Use the second number to send MMS • Send SMS and view text message history. • Select your second phone number from the list of available numbers. • Access your contacts list and synchronize it with the app. • International calling and messaging using 2nd line. • Support for multiple phone numbers. Note: Some features such as obtaining a second number, international calling, sending SMS/MMS, and multiple numbers require a paid subscription or in-app purchase. With Second Phone Number's multiple number features, you can get an additional 2nd line for various situations: A Dedicated Number for: • Buying or selling on local e-commerce platforms. Use a second number for ads and calls. • Dating. Give a second number to new acquaintances from dating apps. • Signing up online. Keep your private number private with a second number. Share your personal number only with trusted contacts. For everyone else, there's Second Phone Number! Subscription Details: - Purchase one phone number: Auto-renewal (Monthly $9.99 or Yearly $49.99) starts after a 3-day free trial. Additional numbers at $9.99 per month. - Payment will be charged to your iTunes Account upon confirmation of purchase. - Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Manage subscriptions in your iPhone settings. - Unused portion of a free trial period will be forfeited upon subscription purchase. Privacy Policy: https://secondlinenumber.com/privacy-policy Terms of Use: https://secondlinenumber.com/terms-of-use EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Disclaimer: Unlimited or free calls and texts are subject to fair usage. Please refer to our terms of use for details. Experience the convenience of managing personal and business contacts separately with Second Phone Number App!

Screenshots

SmartLine Second Phone Number4 screens
Second Phone Number'4 screens

Verdict

The call

The clearest difference is monetization model: Second Phone Number' at free with in-app purchases against SmartLine Second Phone Number's subscription. Second Phone Number' also leads on chart position (#160 vs unranked). SmartLine Second Phone Number's advantage is ads (none vs shown). On price, rating, review sentiment and ratings volume 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. SmartLine Second Phone Number sells 2 in-app purchases, starting at $12.99 per month and Second Phone Number' sells 16 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for SmartLine Second Phone Number against 4.6 for Second Phone Number'. Both are backed by a comparable volume of ratings — 44K and 46K respectively. Written reviews are what separate them: 15% of SmartLine Second Phone Number's written reviews are positive against 12% of Second Phone Number''s.

UpkeepUpdate frequency

SmartLine Second Phone Number ships an update every 2 months, Second Phone Number' every 5 weeks. Both last shipped on September 24, 2026.

Scorecard3 real differences · 8 level
SmartLine Second Phone Number versus Second Phone Number': the parameters behind the verdict, then further details
ParameterSmartLine Second Phone NumberSecond Phone Number'
PriceFreeFree
Rating4.7 (44K ratings) — better4.6 (46K ratings)
Positive reviews15.5% of reviews — better11.9% of reviews
Number of ratings44K46K — better
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
Best chart rank—#160 — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.1 — better13.0
Further details — not scored
Size75 MB120 MB
Age rating4+4+
DeveloperGoDaddy.com, LLCEverAppsLLC

Customer experience

SmartLine Second Phone Number

All ratings44,037 ratings
Positive94.0%
Neutral3.3%
Negative2.7%
Written reviews110 reviews
Positive15.5%
Neutral13.6%
Negative70.9%

Second Phone Number'

All ratings46,188 ratings
Positive89.3%
Neutral3.4%
Negative7.2%
Written reviews268 reviews
Positive11.9%
Neutral3.4%
Negative84.7%

User reviews

SmartLine Second Phone Number

From 44K App Store ratings

What we love

  • 🚀 Convenient business line
  • 📝 Stores call/text history
  • ⏱️ Ability to set business hours

Room to improve

  • 🐛 Unreliable text messaging
  • 📞 Missed/dropped calls
  • 🔔 Delayed/missing notifications
  • 🤖 Poor customer support

Second Phone Number'

From 46K App Store ratings

What we love

  • 🚀 Efficient app for second phone number
  • 💡 Useful for business and privacy needs
  • 😊 Some users find the app amazing

Room to improve

  • 🐛 Unreliable and buggy performance
  • 🔒 Security and privacy concerns
  • 💰 Expensive subscription, hidden fees
  • ⚠️ Poor customer support and unresponsive developers
  • 🔇 Limited features and functionality

Bugs and requests

SmartLine Second Phone Number

Reported bugs

3 issues
  • Disappearing call/text history
  • Incorrect number display on outgoing calls
  • Failure to sync across devices

Requested features

4 requests
  • Ability to send multiple photos/files
  • Improved caller ID display
  • Option to have multiple voicemail greetings
  • Compatibility with VPNs and older devices

Second Phone Number'

Reported bugs

3 issues
  • Numbers randomly deleted or become unusable
  • Texts and calls not working as expected
  • Subscription issues and inability to cancel

Requested features

3 requests
  • Increase daily text message limit
  • Improve message history and notification features
  • Allow users to port and keep their assigned numbers

In-app purchases

2 purchases

SmartLine Second Phone Number

Subscriptions2
  • SmartLine Unlimited (Monthly)7 Days trial$12.991 Month
  • SmartLine Toll-Free7 Days trial$19.991 Month
16 purchases

Second Phone Number'

Subscriptions9
  • Second Additional Number Week3 Days trial$5.997 Days
  • 2nd Line3 Days trial$6.997 Days
  • 2nd Phone number3 Days trial$9.991 Month
Show 6 more
  • Second Additional Number Month3 Days trial$9.991 Month
  • Third Additional Number Month3 Days trial$9.991 Month
  • Second Phone Premium - Monthly3 Days trial$11.991 Month
  • International calling app3 Days trial$49.991 Year
  • Second Additional Number Year3 Days trial$49.991 Year
  • Second Phone Premium - Yearly3 Days trial$69.991 Year
One-time7
  • Buy 200 Credits$9.99
  • Get 150 Credits$9.99
  • Change Number$15.99
Show 4 more
  • Get 350 Credits$19.99
  • Get 800 Credits$29.99
  • Get 1200 Credits$49.99
  • Get 2500 credits$89.99

Questions

Is SmartLine Second Phone Number free?
SmartLine Second Phone Number is free to download, with in-app purchases available.
Is Second Phone Number' free?
Second Phone Number' is free to download, with in-app purchases available.
Which has better reviews, SmartLine Second Phone Number or Second Phone Number'?
SmartLine Second Phone Number is rated higher. SmartLine Second Phone Number averages 4.7 out of 5 from 44K ratings, while Second Phone Number' averages 4.6 from 46K ratings.
Do SmartLine Second Phone Number or Second Phone Number' have ads?
Second Phone Number' shows ads; SmartLine Second Phone Number does not.
Which is updated more often, SmartLine Second Phone Number or Second Phone Number'?
SmartLine Second Phone Number ships an update every 2 months, and Second Phone Number' every 5 weeks. Most recently, SmartLine Second Phone Number was updated on September 24, 2026 and Second Phone Number' on September 24, 2026.

Other comparisons