Text AI
Ask from which plan the AI agent comes, how many AI messages it includes and what going over the limit costs. On HellouOne the agent is included from Starter on the plans with AI, with 2,000 AI messages a month.
Alternatives to Callbell, respond.io, Wati and Retell for WhatsApp and voice in Colombia
HellouOne brings together a WhatsApp inbox for teams, text and voice AI agents with telephony in Colombia, and monthly billing from USD 49 with a 0% markup on Meta. Here we compare it with Callbell, respond.io, Wati and Retell AI, using data from their public pages as of November 2026, with the sources at the end of the page.
How to choose
How do you choose a WhatsApp platform with AI and voice?
Before comparing brands, define what you need. Six criteria explain almost all the difference between these platforms, and each comparison walks through them one by one.
AI voice
Confirm whether the voice agent answers inbound calls, runs outbound campaigns or both, and whether each call has a duration cap. HellouOne voice agents do both and bill per second.
Numbers and telephony in Colombia
If you make or receive calls in Colombia, ask who gets and configures the telephony. On HellouOne it is included in the voice plans.
Markup on Meta fees
Meta charges WhatsApp messages by template and category. Ask whether the provider adds a markup on top. HellouOne charges 0% and you pay Meta from your own account.
Currency and payment terms
Check which currency each platform bills in and how often: some charge in dollars, others in euros, monthly or yearly. HellouOne bills in dollars, monthly and with no lock-in.
Team size
Some platforms charge per agent and others include several users in each plan. Count how many people answer at the same time and compare the total cost with your real volume, not just the entry price.
Comparisons
Pick the comparison that fits you
Each page compares HellouOne with one alternative, uses data from its public pages, explains how each one charges and ends with a section on when the other option may be a better fit.
HellouOne or Callbell
AI agent included, voice with telephony in Colombia and monthly billing, compared with a per-agent price plus channel add-ons.
See the comparison →HellouOne or respond.io
Inbound and outbound AI voice, a 0% markup on Meta and how each platform charges: agents and AI messages, or active contacts and credits.
See the comparison →HellouOne or Wati
Monthly billing with no lock-in, AI agents and voice by phone in Colombia or over WhatsApp calls.
See the comparison →HellouOne or Retell AI
AI voice on a monthly plan with telephony in Colombia included and WhatsApp in the same place, or by the minute and built by your technical team.
See the comparison → At a glance
How does each platform charge?
How each platform charges, using what each provider publishes as of November 2026 (see the sources at the end of the page). Plans change: confirm them before you decide.
| Platform | How it charges (as of November 2026, see the sources) | What it is | Comparison |
|---|---|---|---|
| HellouOne | From USD 49 a month billed monthly; AI voice agents from USD 499 a month, with minutes included | A WhatsApp inbox for teams, with text and voice AI agents | See pricing |
| Callbell | From 14 € a month per agent | Multichannel inbox for sales and support, with an AI agent | HellouOne or Callbell |
| respond.io | From USD 79 a month billed yearly, with 5 users | Customer conversation platform with AI and many channels | HellouOne or respond.io |
| Wati | From USD 59 a month billed yearly, with 3 users | WhatsApp automation with AI agents | HellouOne or Wati |
| Retell AI | Pay as you go: USD 0.07 to USD 0.31 per minute of voice agent | AI voice platform for technical teams | HellouOne or Retell AI |
Checklist
Seven steps to decide with your own numbers
- Write down how many people answer at the same time and how many new conversations arrive per week.
- Decide whether you need a text AI agent, a voice one or both, and whether voice must make outbound calls.
- Confirm whether you need numbers and telephony in Colombia, and who configures them.
- Work out the monthly cost with your real volume: users, AI messages, minutes and Meta fees.
- Ask how often you are billed, in which currency and whether there is a lock-in.
- Try two options with their free trial and the same frequently asked questions loaded into each AI agent.
- Compare how long setup takes and how the conversation reaches a person.
Transparency
How we write these comparisons
HellouOne writes these comparisons and is an interested party. That is why we use only data from each provider's public pages, with its source and date, and no reviews, ratings or customer counts. If you need a channel HellouOne does not have, such as TikTok, or you prefer to choose each piece of an AI voice platform, every comparison includes a section on when the other platform may be a better fit.
- Data from each provider checked in November 2026, with its sources at the end of this page.
- Each comparison explains how each platform charges, so you can compare with your real volume.
- What a provider does not publish is marked “not stated on their site”, never assumed.
Sources
Sources and date checked
Entry prices from each provider's public pages, checked in November 2026. Each comparison lists its own sources in detail.
Keep exploring
More about HellouOne
AI voice agents
Inbound calls and outbound campaigns, with telephony in Colombia included.
See plans →Multi-agent WhatsApp CRM
One number, your whole team, with assignment rules and AI agents.
Read the guide →WhatsApp Business API in Colombia
Meta fees, requirements and data protection for businesses in Colombia.
Read the guide →Compare it with your own conversations
Create your HellouOne account and try the inbox and the AI agent for 7 days, with no card. The WhatsApp channel connects when you pick a plan.
