1. respond.io
respond.io suits teams that want a WhatsApp inbox with workflows, AI agents and bulk template sends, and can pay for the Growth plan to get them. It names ISO 27001 and lists a developer API from Growth. The catch: Starter has no broadcasts, webhooks need the Advanced plan, and no SOC 2 Type II report is named.
Best for: Teams that want workflows and AI agents on top of a WhatsApp inbox. Prices, facts and sources
2. SleekFlow
SleekFlow suits teams that want WhatsApp plus Instagram, Messenger, SMS and Telegram in one inbox, with broadcasts and an AI agent on Pro. It names SOC 2 Type II and ISO 27001 and lists all four named integrations across its plans. The catch: Essential has no AI agent or broadcasts, the $15 number fee is extra, and its Email channels are marked coming soon.
Best for: Teams that want broadcasts, a no-code flow builder and an AI agent in one tool. Prices, facts and sources
3. Superchat
Superchat suits small European teams that want a shared inbox across WhatsApp, Instagram, Facebook Messenger, email, SMS, live chat and Telegram, a free entry plan and Meta fees at cost. Basic at €89 a month covers 3 users. The catch: contracts run 12 months, campaigns reach only 100 contacts without a paid add-on, and the trial length is not stated.
Best for: European teams that want a free start and Meta fees at cost. Prices, facts and sources
4. Interakt
Interakt suits small teams that want unlimited agents, broadcasts and Shopify order flows on WhatsApp, with the inbox from $239 a year. Its FAQ says conversation charges are billed on actuals without a surcharge. The catch: the AI agent is a paid add-on, auto-assignment needs Advanced, and no SOC 2 Type II or ISO 27001 claim appears on its pricing or FAQ pages.
Best for: Small teams that want unlimited agents on a WhatsApp inbox. Prices, facts and sources
5. Callbell
Callbell suits small teams that want per-agent pricing, a visual no-code bot builder and the option to keep using the WhatsApp Business app on the same number. Three users cost $45 a month, before Meta message costs. The catch: the pricing page shows no annual price, the AI agent has no listed price, and the ISO 27001 mention covers its cloud host rather than Callbell itself.
Best for: Small teams that want to pay per agent and keep their WhatsApp Business app. Prices, facts and sources
6. YCloud
YCloud suits small teams that want a free start, API access and a shared inbox on one WhatsApp number, with no markup on Meta's fees. Three agents cost $49 a month on Growth. The catch: it publishes no free-trial length, and only WhatsApp is described as a channel in the inbox.
Best for: Small teams that want to start free on WhatsApp and keep their Business app number. Prices, facts and sources
7. AiSensy
AiSensy suits small teams that only need WhatsApp and want a free start, low-cost broadcasts and a shared inbox. Basic covers 3 agents at $40.50 a month billed yearly, and its FAQ says message credits are charged directly by Meta. The catch: its pages list no channel besides WhatsApp and name no internal-notes feature, survey feature or SOC 2 or ISO 27001 claim.
Best for: Small teams that want WhatsApp broadcasts and a shared inbox at a low price. Prices, facts and sources
8. Gallabox
Gallabox suits small teams that want a WhatsApp inbox with automatic round-robin assignment, a drag-and-drop bot builder and AI agents. Basic is a hard cap of 3 users, so growing teams move to Essential at $248 a month billed yearly. The catch: Meta fees carry a Gallabox markup, and it lists only WhatsApp and Instagram as inbox channels.
Best for: Small teams that want a WhatsApp inbox with round-robin routing and bots. Prices, facts and sources
9. Zoko
Zoko suits small stores that want several agents on one WhatsApp number without paying per seat, and it connects to Shopify. Flows, Instagram and Messenger inboxes and a documented API are covered. The catch: Starter charges a per-conversation markup, a number on the API cannot also run on a phone, and the ISO 27001 claim is compliance, not a named certificate.
Best for: Small Shopify stores that want a shared WhatsApp inbox and no per-agent fee. Prices, facts and sources
10. DelightChat
DelightChat suits small stores that want a team inbox across WhatsApp, Instagram, Facebook, email and live chat at a low monthly price. Broadcasts, CSAT surveys and Shopify tools are included or sold on the public page. The catch: it names no public API, SSO or security certificate, and does not state a price for extra team members.
Best for: Small online stores that want a low-priced WhatsApp inbox with Shopify tools. Prices, facts and sources
11. Trengo
Trengo suits mid-size teams that want WhatsApp, email and social channels in one inbox, with flow bots and an AI agent. It supports WhatsApp coexistence and lists Shopify, HubSpot and Salesforce. The catch: the cheapest plan starts at €299 a month for 10 users, broadcasting costs extra, and no security certification is named.
Best for: Mid-size teams that want one inbox for WhatsApp, email and social channels. Prices, facts and sources