Human-sounding AI voice agents for sales, support and collections calls

12 alternatives to Harmony.ai (formerly One AI), matched by what they do.
| Rank | Tool & Tagline | Official Domain | Monthly Visits |
|---|
| MoM Growth |
|---|
| Pricing Model |
|---|
| Primary Market |
|---|
| Rating |
|---|
| Compare |
|---|
| ● | Harmony.ai (formerly One AI) | oneai.com | 2.61K | -5.2K (-66.6%) | Contact for Pricing | Bangladesh | 4.3 | Profile |
| 1 | VoiceGenie | voicegenie.ai | 7.05K | -1.63K (-18.7%) | Free Trial, Paid | India | 4.4 | Compare |
| 2 | SalesCloser AI | salescloser.ai | 29.31K | -8.46K (-22.4%) | Paid | United States | 4.2 | Compare |
| 3 | Synthflow.ai | synthflow.ai | 95.54K | -7.91K (-7.6%) | Free Trial, Contact for Pricing | United States | 4.2 | Compare |
| 4 | Autocalls.ai | autocalls.ai | 26.82K | -13.46K (-33.4%) | Contact for Pricing | United States | 4.3 | Compare |
| 5 | Simple AI Phone Assistant | usesimple.ai | 33.74K | 7.3K (+27.6%) | Contact for Pricing | United States | 4.2 | Compare |
| 6 | Dialora.ai | dialora.ai | 15.48K | 1.39K (+9.9%) | Contact for Pricing | United States | 4.1 | Compare |
| 7 | PreCallAI | precallai.com | 3.65K | -681 (-15.7%) | Paid, Contact for Pricing | United States | 4.1 | Compare |
| 8 | Brilo AI | brilo.ai | 39.55K | 4.38K (+12.5%) | Contact for Pricing | United States | 4.2 | Compare |
| 9 | Curious Thing | curiousthing.io | 16.72K | -7.08K (-29.8%) | Freemium | United States | 4.3 | Compare |
| 10 | telli | telli.com | 30.99K | -3.67K (-10.6%) | Contact for Pricing | Germany | 4.4 | Compare |
| 11 | SetSmart | setsmart.io | 57.38K | -9.84K (-14.6%) | Free Trial, Paid | United States | 4.3 | Compare |
| 12 | Calldock | calldock.co | 396 | 396 (0%) | Freemium, Free Trial | United States | 4.1 | Compare |
Human-sounding AI voice agents for sales, support and collections calls

AI sales agents that answer every lead in seconds
AI sales agents that answer every lead in seconds

SpecialistEnterprise AI voice agents that work inside your phone system

AI voice agents that answer, dial, book, and follow up for you
AI voice agents that answer, dial, book, and follow up for you

SpecialistAI voice and chat agents that handle every revenue conversation
SpecialistAI voice and chat agents that handle every revenue conversation

SpecialistAI voice agents that answer, qualify, and book calls 24/7
SpecialistAI voice agents that answer, qualify, and book calls 24/7
Outbound AI calling that bills per qualified meeting, not per minute

AI phone agents that answer, qualify and route every call 24/7

SpecialistVoice AI agents for inbound and outbound business calls
SpecialistVoice AI agents for inbound and outbound business calls

AI voice agents that run your customer calls end to end
SpecialistTurn social DMs into booked sales calls — automatically, 24/7.

SpecialistAI voice agents that call every new lead within 60 seconds and qualify them before your team picks up