TwinPhone vs ringSMB

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

TwinPhone compared with ringSMB
Detail	TwinPhone	ringSMB
What it does	Browser-based international calling service with pay-per-minute rates to 145+ countries	One business number across web, mobile, and SIP desk phones with AI answering and pay-as-you-go pricing
Stage	Not given	Not given
Founded	2022	Not given
Based in	CZ	Not given
Pricing model	Not given	Paid
Pricing	Calls: $0.02/min to US and Canada, $0.06–$0.12/min to UK, $0.08/min to India, rates for other countries shown before dialling. Virtual numbers: from $3.19/month for US, Canada or Puerto Rico numbers. Receiving calls: $0.02/min from balance. Minimum top-up: $10. Billed per minute, rounded up, with 60	Phone numbers: $3/month. Usage charges: inbound calls $0.02/min, outbound calls $0.03/min, web/mobile phone $0.01/min, forwarding $0.045/min, SMS $0.02/segment, AI receptionist +$0.18/min, recorded minutes $0.01/min, stored recordings $0.002/min, transcription $0.02/min, AI summaries $0.03 each, tex
Key features	Call 145+ countries from web browser No app, SIM card or contract required Transparent per-minute pricing shown before call Encrypted calls with TLS and SRTP Adaptive audio for unstable connections Virtual US and Canada numbers for receiving calls and SMS Call history and contacts storage Enterprise plan with shared wallet and analytics Works on iOS and Android apps Balance never expires	Shared business phone number accessible from web, mobile, and SIP desk phones AI voice receptionist that answers calls and books appointments Business text messaging Call routing and IVR menus Appointment booking and calendar management Call recording and transcription Customer contact management with shared notes and history Lead pipeline and opportunity management Extensions and unlimited users per account AI call summaries and voicemail transcription
What makes it different	Pay only for calls you make with transparent per-minute rates, no subscriptions or hidden fees Works in any modern browser without installing apps or requiring SIM cards Calls maintained on poor Wi-Fi with adaptive audio codec adjustment All calls encrypted in transit with industry-standard encryption Replace Skype with browser-based alternative after Skype shutdown in May 2025	Pay-as-you-go pricing with no per-user seat fees or long-term contracts One professional number works across web, mobile, and SIP desk phones with synchronized context Built-in AI receptionist that handles common questions and transfers to humans when needed Integrated lightweight CRM and appointments without separate tools Number porting to bring existing business numbers to the platform
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	22 +2 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	15	2
Citation Flow (Majestic)	27	12
Referring domains (Majestic)	69	1

4 details filled in for both companies.

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