Google Voice
Google LLC
Productivity
Google Voice gives you a phone number for calling, text messaging, and voicemail.
Free
Finding alternatives to
Top 20 Alternatives
Curated apps similar to 1SIM VoIP, ranked by relevance and user ratings.
Ooma Office
Ooma, Inc.
Productivity
Make and receive calls from anywhere as if you’re in the office. Ooma Office mobile app is a calling app that works like a hard-wired business phone. Use features like a virtual receptionist, extension dialing, conferencing, and music-on-hold.
Free
Ooma Home Phone
Ooma, Inc.
Productivity
As a companion to Ooma’s award winning home phone service, this app lets you make calls from your Ooma phone number, receive calls when you’re away from home, check your Ooma voicemail, and more. Purchase the beautiful Ooma Telo at your favorite retailer or at Ooma.com.
Free
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#4 
Easy Caller ID
Identify calls, block spam, manage contacts
L.S Mobile Apps Holdings LTD
ProductivityIdentify incoming calls with real-time information. View unknown numbers, block spam and fraudulent calls. Manage contacts and set call filters. Integrate with Apple’s Live ID service. Protect privacy while managing call interactions.
Free -
#5 
Zoiper Lite voip soft phone
Connect to PBX and make calls
Securax
ProductivityMake voice and video calls using SIP protocol. Connect to PBX or provider. Support Bluetooth pairing. Background operation with low battery usage. Receive and answer calls reliably. Adjust call settings for optimal quality.
Free -
#6 
VPN+ WiFi Super VPN for iPhone
HotSpot VPN Ltd
ProductivityWe are glad to bring you one of a kind VPN protocol that will provide you a VPN experience that you have never seen before! get ready to speed you haven't seen before with no restrictions and no limitations! HotSpot VPN is a leading VPN Provider, Trusted by millions around the world.
Free -
#7 
Bria - VoIP Softphone
CounterPath Corporation
ProductivityYour everyday business communication tools, all in one place. Easily call, video chat, message, meet and share whether you’re at a desk, on the move, or work from home. Bria lets you take communications anywhere, no matter what network or device you use it on.
Free -
#8 
VPN for iPhone - Unlimited VPN
Super Unlimited Inc.
ProductivityVPN for iPhone turns any public hotspot into a secure WiFi network and VPN with bank-grade data encryption to keep your information safe from hackers.
Free -
#9 
VPN in Touch
Secure your connection and protect your data
Betternet LLC
ProductivityEncrypt internet traffic to secure data transmission. Conceal IP address to protect online identity. Connect to remote servers for private browsing. Block ads and trackable scripts. Set up automatic connections for ongoing protection.
Free -
#10 
Voxist: Visual Voicemail
VOXIST
ProductivityVoxist is an intelligent voicemail that replaces your carrier’s inefficient voicemail. Delight callers with customized greetings and save time by reading transcribed voicemail messages.
Free -
#11 
Speak N Send - Audio messaging
Televolution, Inc
ProductivityTap, Speak, and Send via SMS or Email Most apps make things complicated. With Speak N Send, it couldn't be easier. Tap, start speaking, then send. Send a voice memo to anyone, even if they don't have the Speak N Send app. No signup needed.
Free -
#12 
Wildix Collaboration Mobile
Wildix Srl
Productivity**To use this application, you must be a user of a Wildix system and have fast internet connection that doesn’t block VoIP traffic** **For push notifications: a direct, unproxied connection to Apple Push Notification servers from smartphone is necessary on ports TCP 5223; TCP 2195; TCP 2196; TCP...
Free -
#13 
DialMyCalls: Mass Text & Voice
OnTimeTelecom, Inc.
ProductivityDialMyCalls is your go-to solution for mass communication. Send mass text messages, voice broadcasts, and emergency alerts in seconds.
Free -
#14 
Voice Memos Recorder
Service Development Limited
ProductivityVoice Memos Recorder turns your iPhone into a portable audio recorder. Our app is designed to provide an easy recording experience with high-quality sound, also offering playback and editing capabilities. Record your voice memos and convert them into text.
Free -
#15 
LineVPN: Fast Unlimited VPN
SAILFISH PTE. LTD.
ProductivityYour Fast & Secure VPN for iPhone – No Ads, No Registration! LineVPN is a fast, free, and unlimited VPN designed exclusively for iPhone users.
Free -
#16 
Teo Mobile Softphone
Teo Technologies, Inc.
ProductivityTeo Mobile Softphone for iOS is a SIP-based VoIP softphone for the iPhone and iPad that uses Wi-Fi and mobile network connections to make and receive calls with the Teo Unified Communications platform.
Free -
#17 
VPN Lite Without Registration
KeepSolid Inc.
Productivity◆ Download KeepSolid VPN Lite and Enjoy One-Tap Protection without Registration ◆ KeepSolid VPN Lite is your best VPN friend when it comes to secure internet access and private browsing.
Free -
#18 
RealVPN - Super Fast VPN Proxy
Security Tech OU
ProductivityReal security for your privacy online and free Internet access. Get RealVPN for your iPhone or iPad and protect sensitive personal data from identity thieves and hackers. Browse your favorite web resources and use social networks worldwide without restrictions.
Free -
#19 
Second Phone Number, Text, SMS
Ivan Marzan
ProductivityThis app provides you with a second phone number on your iOS device, allowing you to make and receive calls, texts, and voicemails without compromising your primary number. With this app, you can easily create and manage a separate number for business, dating, or any other purpose.
Free -
#20 
HelloSpoke Mobile
ICIM Corporation
ProductivityHellospoke is a mobile platform that makes business communications easy.
Free
App information from Apple App Store. 1SIM VoIP and related trademarks belong to Belmont Telecom, Inc..