Comparison

Line2 vs Topup Flow

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

Head to head
About

Line2

This app provides a second phone number for calls and texts, enhancing privacy and communication. It offers features like call screening, blocking, and unlimited messaging over Wi-Fi, eliminating the need for cellular data.

Highlights
  • Second phone number
  • Unlimited calls and texts
  • Call screening and blocking
  • Voicemail access
  • Group messaging
  • Wi-Fi calling and texting
Features
Read full description

Line2 is the most affordable, reliable & simple way to set up a second phone number and connect anywhere! Get a second line & access unlimited calls, text & voicemail features. It’s time for a better way to communicate - Line2 is your call and text app solution. Your personal phone number should stay personal. Line2 makes it simple to screen and block calls to maintain your privacy with robust features that help you say goodbye to annoying spam calls. Keep your second phone number safe with Line2’s premier communications system that allows you to receive and make calls worry-free. Line2 is more than just a calling app. Line2 provides unlimited text and group messaging, making it the robust calling and texting app you need. Set up a second phone number and message friends and loved ones wherever you are. Line2 offers WiFi texting, so you can receive messages without eating up your mobile data. Line2 is the easiest way to set up local or vanity numbers to stay connected anytime, anywhere with a new number. Line2 is your calling and texting app for private and convenient phone calls and texts from anywhere. Download the simplest texting and calling app today and start connecting. LINE2 FEATURES Privacy First - Call screening to detect if a phone call is spam or not - Call blocking means not worrying about unwanted numbers reaching your phone - With caller ID you can safely know who is calling you Set Up a Second Phone Number - Manage a second phone number with Line2’s features that make creating one (or many!) easy - Create a vanity number, texting number, or second line with Line2 - Add multiple phone numbers to your device and receive or make phone calls from anywhere Local and Vanity Phone Numbers - Our calling and texting app lets you create localized and vanity phone numbers- Export your existing phone number to Line2 to keep all of your communication in one place - Set up a new number to connect wherever you are heading next Unlimited Text and Call App -Enjoy unlimited texting and calling on Line2 - Unlimited VoIP calls and text across the United States and Canada No Cellular Data Needed - VoIP technology lets you make and receive calls and texts from anywhere, at any time - Say goodbye to cellular data expenses with Line2’s WiFi calls - Enjoy WiFi texting and never worry about extra SMS and MMS costs again Calling App That Does More - Access your new number’s voicemail and contacts from your smartphone, tablet or computer - Call recording lets you record calls automatically to help keep track of important conversations - Use call forwarding so you never miss a call - Group messaging and private texting are at your fingertips with Line2 Get unlimited texting and calling with Line2 when you sign up for one of our plans. Questions? We’re here to help at http://help.line2.com or tap Settings -> Help from within the app. Note: Your cellular provider may prohibit or restrict VoIP (Voice over Internet Protocol) on their network. It’s your responsibility to check with your cellular provider about their VoIP functionality, and any additional charges it may incur. Line2 is not responsible for any additional cellular charges that may occur as a result of using the Line2 service. Business/Work users who send SMS/MMS to U.S. numbers must complete a registration process after purchase, as required by U.S. mobile carriers. Business messages sent from unregistered numbers may be subject to non-delivery by mobile carriers. Line2 does not provide refunds or credits due to issues with messaging from unregistered numbers. Please visit https://try.line2.com/10dlc/mobile/faq/. Privacy Policy: https://www.line2.com/privacy/ End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Topup Flow

Easily recharge any Flow phone or purchase plans with a credit/debit card or PayPal. Select a destination, choose an amount or plan, and enter payment details for a quick top-up.

Highlights
  • Recharge any Flow phone
  • Purchase Flow plans
  • Pay with credit/debit card
  • Pay with PayPal
  • Simple 3-step process
  • Repeat past top-ups
Features
Read full description

Official Flow app to easily recharge any Flow phone or purchase plans using your credit/debit card or PayPal account Top up any Flow number in a new and simple way. You will be able to Top up an amount or select a plan as you wish. Top up the Flow number in just 3 simple steps: 1- Select Destination 2- Choose Amount or Plan 3- Enter your Payment details (Credit Card or Paypal) That's all. Your phone will be topped up faster than ever. Once you have made your first Top Up you will be able to repeat it just entering your payment details.

Screenshots

Line24 screens
Topup Flow4 screens

Verdict

The call

The clearest difference is in-app purchases: Topup Flow at none against Line2's 10. Topup Flow also leads on update cadence (fortnightly vs monthly). Line2's advantage is chart position (#155 vs unranked). 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. Line2 sells 10 in-app purchases, starting at $9.99 per month. Topup Flow asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for Line2 against 4.5 for Topup Flow. Both are backed by a comparable volume of ratings — 20K and 7K respectively. Written reviews are what separate them: 21% of Line2's written reviews are positive against 26% of Topup Flow's.

UpkeepUpdate frequency

Line2 ships an update monthly, Topup Flow fortnightly. The most recent releases landed on November 8, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 7 level
Line2 versus Topup Flow: the parameters behind the verdict, then further details
ParameterLine2Topup Flow
PriceFreeFree
Rating4.4 (20K ratings)4.5 (7K ratings) — better
Positive reviews20.7% of reviews26.1% of reviews — better
Number of ratings20K — better7K
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#155 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.6
Further details — not scored
Size48 MB71 MB
Age rating17+4+
DeveloperJ2 Web Services, Inc.Cable & Wireless Holdings, Inc.

Customer experience

Line2

All ratings19,819 ratings
Positive83.7%
Neutral5.0%
Negative11.3%
Written reviews276 reviews
Positive20.7%
Neutral14.5%
Negative64.9%

Topup Flow

All ratings6,896 ratings
Positive88.7%
Neutral3.8%
Negative7.5%
Written reviews134 reviews
Positive26.1%
Neutral5.2%
Negative68.7%

User reviews

Line2

From 20K App Store ratings

What we love

  • 🚀 Convenient second line
  • 📞 Reliable call quality
  • 💬 Good texting functionality
  • 🔒 Secure and private
  • 🌐 Works well for international users

Room to improve

  • 🐛 Frequent app crashes and bugs
  • 📞 Poor call quality and dropped calls
  • 💬 Unreliable text messaging
  • 🕰️ Slow app performance
  • 🤖 Unhelpful and unresponsive customer support

Topup Flow

From 7K App Store ratings

What we love

  • ⭐ Excellent app
  • 🚀 Easy to use

Room to improve

  • 🐛 App crashes frequently
  • 💸 Overcharging and losing credit
  • 🔍 Lacking functionality and information
  • 🤖 Poor customer service
  • 🔌 Unreliable connectivity

Bugs and requests

Line2

Reported bugs

5 issues
  • Calls not ringing on device
  • Inability to retrieve voicemails
  • Contacts and call history not syncing properly
  • Unexpected app log-outs
  • Texting issues and message delivery failures

Requested features

5 requests
  • Ability to customize ringtones
  • Support for video and image sharing in messages
  • Separate contact list for Line2 number
  • Apple Watch app integration
  • Improved call handling and forwarding options

Topup Flow

Reported bugs

3 issues
  • Charges not going through
  • Logging out issues
  • Freezing and crashing

Requested features

3 requests
  • Improve data balance display
  • Allow email/profile updates
  • Provide better plan information

In-app purchases

10 purchases

Line2

Subscriptions10
  • Personal Unlimited Monthly$9.991 Month
  • Monthly subscription$10.991 Month
  • Personal Unlimited Monthly$11.991 Month
Show 7 more
  • Line2 Standard Mobile Monthly$15.991 Month
  • Mobile Starter Monthly$15.991 Month
  • Line2 Standard$16.991 Month
  • Mobile Starter Monthly$17.991 Month
  • Personal Unlimited Annual$95.901 Year
  • Line2 - Annual$163.991 Year
  • Mobile Starter Annual$164.991 Year
None

Topup Flow

No in-app purchases

Questions

Is Line2 free?
Line2 is free to download, with in-app purchases available.
Is Topup Flow free?
Topup Flow is free to download, with no in-app purchases.
Which has better reviews, Line2 or Topup Flow?
Topup Flow is rated higher. Line2 averages 4.4 out of 5 from 20K ratings, while Topup Flow averages 4.5 from 7K ratings.
Do Line2 or Topup Flow have ads?
Neither Line2 nor Topup Flow shows ads.
Which is updated more often, Line2 or Topup Flow?
Line2 ships an update monthly, and Topup Flow fortnightly. Most recently, Line2 was updated on November 8, 2026 and Topup Flow on November 7, 2026.

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