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Best O2 Standard Uk Rate Call Apps

210+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated May 2026

Whether you're new to o2 standard UK rate call or looking for an upgrade, our curated collection of 210+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for O2 Standard Uk Rate Call

KeepCalling International#1

KeepCalling International by Miron Enterprises, LLC

Best App to Call Abroad Cheap
Editor's Choice
🌐 Social Networking
4.5😞(3.2K ratings)
FreeAdsIn-App Purchases
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Save on international calls with this app! Enjoy low rates, high-quality voice calls, and easy online service. Call abroad at local rates. Buy prepaid credit online and make cheap calls to various countries worldwide. New feature allows offline calling through local access numbers. Make international calls without an Internet connection.

What We Love

  • πŸš€ Great first call
  • πŸš€ Easy to use app
  • πŸš€ Affordable, fast, and excellent sound
  • πŸš€ Seamless integration with iOS

Room to Improve

  • πŸ› Busy for what
  • πŸ› Hard to connect
  • πŸ› Worst app ever, don't waste your money
Second Phone Number - 2Number#2

Second Phone Number - 2Number by BP Mobile LLC

2nd Line for Texts and Calls
Strong Contender
πŸ”§ Utilities
4.5😞(132K ratings)
FreeIn-App Purchases
#31in Utilities
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Get a second phone number for private calls and texts with 2Number! Make international calls, hide your real number, and use features like call recording and text messaging. Perfect for online services, dating, and more. Try it now!

What We Love

  • πŸš€ Great service
  • πŸ‘ Perfect solution for global business
  • πŸ‘ Reliable and easy to use

Room to Improve

  • πŸ› Glitchy, full of bugs
  • πŸ’° Expensive with hidden charges
  • πŸ”’ Lack of privacy and security
WePhone: 2nd Phone &WiFi Calls#3

WePhone: 2nd Phone &WiFi Calls by Gelenk Networks Inc.

Virtual Number Calling+Texting
Worth Considering
🌐 Social Networking
4.4😐(2.2K ratings)
FreeIn-App Purchases
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A virtual second phone app that provides an additional phone number for calling and texting. Stay connected with a separate line on your existing device without the need for an extra physical phone.

What We Love

  • πŸš€ Excellent call quality
  • πŸ’° Affordable rates
  • πŸ“ˆ Useful daily credits
  • 🌍 Great for international calls

Room to Improve

  • πŸ› Frequent app crashes
  • πŸ” Forced app updates causing loss of credits
  • πŸ”‘ Difficulty transferring account/credits

More O2 Standard Uk Rate Call apps to explore

4
Rebtel: Top-ups And Calls
Rebtel: Top-ups And Calls
Rebtel: Top-ups And Calls
Recharge Fast, Call Worldwide.
Free

Experience high-quality, low-cost international calls, recharges, and money transfers with an all-in-one app. Connect with over 190 countries, send recharges in minutes, and transfer money securely. Simplify your cross-border communication needs today!

🌐 Social Networking
(123K)
5
OnPhone: Second Number & eSIM
OnPhone: Second Number & eSIM
OnPhone: Second Number & eSIM
Private Texts & Calls, eSIMs
Free

"Get a second phone number for personal or business use with OnPhone. Make international calls, choose custom numbers, and enjoy features like voicemail, call recording, call forwarding, and more with eSIM technology to save on data fees. Download now!"

πŸ’Ό Business
(51K)
6
Dingtone: Phone Calls + Texts
Dingtone: Phone Calls + Texts
Dingtone: Phone Calls + Texts
WiFI Calling 2nd Phone Number
Free

Make free calls, send texts over WiFi, and get a second phone number with this app. Stay connected easily and efficiently on the go. Download now for seamless communication!

🌐 Social Networking
(31K)
7
Raza: Cheap International Call
Raza: Cheap International Call
Raza: Cheap International Call
Quality Calls & Lowest Rates
Free

Connect with friends and family worldwide through high-quality calls and video with Raza Universe: Global Calling. Stay connected easily and affordably across the globe. Download now to make crystal-clear calls anywhere, anytime!

🌐 Social Networking
(1.2K)
8
NewCall - Flash Call & SMS
NewCall - Flash Call & SMS
NewCall - Flash Call & SMS
incoming call flash & ring app
Free

Revolutionize the way you make calls with our innovative Flash Call application. Instantly connect with contacts using a seamless and efficient call experience. Try it now!

🌟 Lifestyle
(6K)
9
2nd Line - Second phone number
2nd Line - Second phone number
2nd Line - Second phone number
Calls text.s from 2.nd number
Free

Get a second phone number with 2nd Line app and make calls and send texts from an additional number without needing an extra SIM card or phone. Use real US, Canada, and Finland phone numbers for calling and texting with the convenience of receiving calls and messages even when the app is closed.

πŸ’Ό Business
(15K)
10
MobileVOIP international calls
MobileVOIP international calls
MobileVOIP international calls
Cheap phone calls worldwide
Free

This app enables users to make cheap international calls from their iPhone using WiFi or mobile data, with support for over 50 VoIP providers. Users can send SMS messages worldwide, make free calls to select destinations, and save on calling charges by utilizing various internet connection options. To start saving on phone costs, download the app now and make calls anytime, anywhere.

🌐 Social Networking
(16K)
11
TXT App Phone Now
TXT App Phone Now
TXT App Phone Now
2nd Line:Text,WiFi Call Me Now
Free

Get a 2nd line for free WiFi phone calls with the TXT App Phone Now. Stay connected without using your phone's plan. Try it now!

🌐 Social Networking
(10K)
12
AI Phone:Call&Voice Translator
AI Phone:Call&Voice Translator
AI Phone:Call&Voice Translator
Phone Call & Voice Translator
Free

Experience real-time language translation during phone calls with AI Phone: Smart Phone Call. Break language barriers effortlessly and communicate seamlessly. Try it now for clear, instant conversations across languages.

πŸ”§ Utilities
(73K)
13
mytello: International calling
mytello: International calling
mytello: International calling
International calls
Free

Make affordable international calls to 227 countries with the mytello app. Enjoy low rates, no contracts, and 24/7 customer support. Try it for free and connect with over 100,000 users worldwide.

🌐 Social Networking
(4.8K)
14
Google Voice
Google Voice
Google Voice
Smarter voice calling
Free

"Get a smarter voice calling experience with this app that provides you with a phone number for calls, texts, and voicemail. Stay in control with spam filtering, personalized settings, and easy message management across devices. Enjoy advanced features like voicemail transcription and save on international calling rates. Available for personal Google Accounts in the US and Google Workspace accounts in select markets."

πŸ“Š Productivity
(62K)
15
TapeACall Pro: Call Recorder
TapeACall Pro: Call Recorder
TapeACall Pro: Call Recorder
Call Recorder For Phone Calls
$10.99

Record your incoming and outgoing iPhone calls with ease using this call recorder app. Never miss important details from your calls - try it now!

πŸ’Ό Business
(18K)
16
WeTalk -US Phone Plan for Call
WeTalk -US Phone Plan for Call
WeTalk -US Phone Plan for Call
International Phone Calling
Free

Easily make calls over WiFi with our intuitive app. Stay connected with friends globally without worrying about mobile network limitations. Download now to experience seamless WiFi calling.

🌐 Social Networking
(185)
17
Vyke: Second Phone Number
Vyke: Second Phone Number
Vyke: Second Phone Number
Call & Text with a 2nd Line
Free

Get a second phone number with Vyke for added privacy and organization. Separate work and personal calls, manage multiple numbers, and enjoy enhanced communication capabilities in one convenient app.

🌐 Social Networking
(1.9K)
18
Duo Call - Global WiFi Call
Duo Call - Global WiFi Call
Duo Call - Global WiFi Call
International call & talk now
Free

Connect with anyone worldwide using Duo Voice, a global WiFi calling application. Stay in touch effortlessly across borders with crystal-clear voice quality and a user-friendly interface. Download now to experience seamless international communication.

🌐 Social Networking
(728)
19
Second Phone Number'
Second Phone Number'
Second Phone Number'
Call.ing & Talk Change.r
Free

Get a second phone number for managing personal and professional calls separately. Keep your communication organized with this convenient app.

πŸ’Ό Business
(44K)
20
toolani: International Calling
toolani: International Calling
toolani: International Calling
Cheap rates & best quality
Free

Easily make affordable international calls with our user-friendly app. Stay connected to your loved ones abroad without breaking the bank. Download now and start saving on international calls.

🌐 Social Networking
(1.7K)

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