Terasu vs OneVOIPlanet

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

Terasu compared with OneVOIPlanet
Detail	Terasu	OneVOIPlanet
What it does	Every client project, in plain sight.	Cloud-based business telephone system with virtual numbers in 100+ countries, call routing, and mobile app
Stage	MVP	Established
Founded	Not given	2021
Based in	JP	US
Pricing model	Freemium	Freemium
Pricing	Free: $0/month (2 users, 3 rooms, 500MB storage). Solo: $35/month (1 seat, 10 rooms, 5GB storage). Starter: $69/month (3 users included, +$15 per additional user, 30 rooms, 10GB storage). Business: $199/month (10 users included, +$19 per additional user, unlimited rooms, 50GB storage). Enterprise: C	Start plan from $8/month (up to 1 number, 5 employees, single-level IVR); Business plan from $14/month (up to 3 numbers, 12 employees, multi-level IVR). Virtual numbers start from $5.99/month (United States), additional features like extra employee ($0.75/month), additional number connection ($2/mon
Key features	Rooms: shared spaces per project with files, conversations, notes, tasks, and decisions File tracking: see which clients opened files and which pages they read Decision timeline: trace agreements over time with original source records Zoom integration: automatic transcript recording and saving to Rooms AI agent with approval: drafts responses, reminders, and reports before human review Task management: assign tasks with due dates to both team and client Slack and LINE sync: messages sync between Room and external chat apps Analytics: view logs, engagement reports, and AI-powered project health scoring Stakeholder map: visualize project relationships with roles and influence Permission controls: choose what clients see and what stays internal per page	Call recording and statistics IVR voice menu system Callback and missed call notifications CRM integrations (KeyCRM, SalesDrive, Pipedrive, Zoho) OnePhone mobile app for smartphone No hardware required, browser and app-based eSIM data service for 200+ countries Call routing and forwarding rules Call analytics and performance reporting
What makes it different	AI answers questions from Room records with citations to original sources Clients join with one click from invitation email; no account creation required Works alongside existing tools like Backlog and kintone without migration File view tracking shows client engagement and helps spot stalled projects All client-facing messages and reports require human approval before sending	Setup in 5 minutes without hardware or technician visit Integrated callback and missed call recovery to prevent losing leads Works on smartphone, computer, and browser without additional equipment Lower communication costs compared to traditional phone lines
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)	8 +1 (up) since last check	24 no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	17	22
Referring domains (Majestic)	7	6

7 details filled in for both companies.

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