Outgrow a second number from Onoff
Onoff gives one person a spare number on their phone. When a second line isn't enough, Allo is the AI phone system for your team: it summarizes every call, drafts the follow-up and syncs your CRM, from $32 per user billed annually or $45 month to month.
AI on every callBuilt for teamsCancel anytimeAllo vs Onoff
The Onoff Numbers app is a second number for one phone. Team features like recording, transcription and CRM integrations sit in a separate product, Onoff Business, from €19 a month. Allo is a full AI phone system for a team, at one flat price per user.
Feature by feature
Where a second number stops and a real AI phone system for your team begins.
Onoff Numbers
Second-number app
Manage your team in Allo
Why teams pick Allo
A second number handles one person. Allo runs the phones for your whole team, with AI on every call.
Answers every call, around the clockThe AI receptionist picks up 24/7, qualifies the caller and books the meeting, so nobody on your team has to catch every ring themselves. It's an add-on, priced per agent like a Business seat.
Ringing
Drafts the follow-up for youThe moment you hang up, Allo writes the follow-up email or SMS and updates your CRM. You review, then send.
Send
A full phone system, one priceYour whole team makes and takes calls, with an IVR builder, intelligent routing, business hours and a mobile app, from $32 per user billed annually ($45 month to month).
Maya RiveraDirect line RingingMoving beyond Onoff
Not really. Onoff is a second-number app that puts an extra line on one phone without a second SIM. The app itself has no team routing or IVR. Onoff sells those in a separate product, Onoff Business, from €19 a month, with call recording, transcription and CRM integrations. Allo is a full AI phone system that answers, summarizes and routes calls for your whole team.
Yes, per line it is, because they are different products. Onoff is a single spare number for one person, from 4.99 € a month. Allo is a full team phone system with AI on every call, native CRM sync and intelligent routing included, from $32 per user billed annually or $45 month to month. You pay more because you get an AI phone system, not just an extra number.
Yes. Allo can give you numbers in more than 50 countries, so you can add a dedicated line for a team, a market or a campaign. Adding a number carries a charge, and every number comes with the full AI phone system, not just a dial tone.
Not in the Onoff Numbers app, which transcribes voicemail with its Premium option. Onoff Business adds call recording and transcription, and AI call evaluation on its Max plan. Allo records, transcribes and summarizes every call automatically, then drafts the follow-up and logs it to your CRM.
Yes. Porting is human-handled and usually takes a few days, and migration help is free. You keep the number your contacts already dial while your team moves onto Allo.
Yes. You can start a 3-day free trial with your own number, with a card that is only charged on day 3, or book a demo and we'll walk your team through the setup.
The information about OnOff on this page comes from OnOff's public website, pricing pages and terms, and from public reviews, as checked on October 9, 2026. Prices and features may have changed since. OnOff is a trademark of its owner. Allo is not affiliated with OnOff.