Alternatives
10 best Stamp alternatives
Tools that cover the same task as Stamp (assistant), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.
- Stamp starts at
- $20/mo
- Free plan
- Free trial
- API
- API unknown
- 01
Chatisto
Chatisto provides an AI customer support agent for small teams that answers web chat and email from your docs, with human handoff, flow builder, unified inbox, and analytics. Pricing is flat per team without per-seat fees on paid tiers.
Best for: Small businesses that want affordable AI-first support on web chat and email without Intercom-scale pricing.
- 02
Desku
Desku is AI customer service software that unifies live chat, email, and social messages in one helpdesk inbox. It targets small businesses and startups with no-code AI chatbots, automation, and omnichannel support to respond faster without coding.
Best for: Small businesses and SaaS teams that need a unified AI helpdesk across chat, email, and social channels.
- 03
Puter
Puter is a browser-based cloud desktop that bundles documents, spreadsheets, presentations, chat, email, creative apps, business tools, and games under one Puter account. Paid plans expand storage, AI, and support while a free tier offers limited storage and AI.
Best for: Users who want many lightweight office and utility apps in the browser without installing separate desktop software.
- 04
Chative
Chative is an ecommerce customer messaging platform with live chat, AI agents, omnichannel inbox, and CRM features built for online stores. It automates FAQs, order tracking, product recommendations, cart recovery, and team collaboration across chat channels.
Best for: Ecommerce merchants and support teams who want AI-assisted sales chat, order context, and multichannel inbox tooling.
- 05
AIHelp
AIHelp is a customer-support platform for mobile apps and websites combining in-app messaging, AI chatbots, smart forms, help centers, and automation. It targets games and apps that need SDK-based support, ticketing workflows, and optional AI Premium capabilities such as bots and push notifications.
Best for: Mobile game and app publishers plus web teams that want in-app chat, bots, and help-center tooling in one support stack.
- 06
2Slash
2Slash is a browser extension that injects prompt-free AI assistance into text fields for writing, summarizing, and light image generation. It bundles multiple model providers and preset workflows so users can draft content in place across the web.
Best for: Operators living in email, CMS, and support tools who want inline AI without opening a separate chat tab.
- 07
Sauna
Sauna is a proactive AI teammate that learns how you work, remembers connected context, and acts across email, documents, Slack, iMessage, and thousands of integrations. It researches, follows up, and can build lightweight apps from natural-language requests.
Best for: Individuals and teams who want a persistent AI coworker across chat surfaces with shared memory and automations.
- 08
KalTalk
KalTalk is an AI customer-support agent that answers from your documentation across web chat, email, and WhatsApp, using your brand tone and escalating to humans with ticket context when needed. Setup centers on uploading SOPs and guidelines, then monitoring conversations and analytics.
Best for: Support and sales teams that want a doc-grounded AI agent on live chat and email without building custom LLM pipelines.
- 09
Althena AI-Powered Mental Health Support
Althena AI is a consumer mental-health app positioned as an AI therapist. Users can voice-call or chat with AI therapists, run dream interpretation, and get guidance sessions, with mobile apps promoted for ongoing emotional support and coping strategies across common life and mental-health topics.
Best for: Individuals seeking private, on-demand AI chat or call-based mental-health support between traditional care visits.
- 10
Cloodot
Cloodot provides a unified inbox where an AI employee handles WhatsApp, Instagram, Facebook, and web chat for sales and support. Teams get copilot assistance, teachable skills and workflows, campaigns, analytics, and handoffs with full conversation context.
Best for: E-commerce, automotive, and multi-location brands that want one AI-augmented inbox for qualifying leads and resolving routine tickets.
Stamp alternatives: common questions
What is the best free alternative to Stamp?
Chatisto has an ongoing free plan. Free plan includes an AI chat widget with 500 AI credits per month and basic analytics. Free plans change, so check the vendor before relying on one.
What is the cheapest Stamp alternative?
Puter has the lowest listed starting price at $10/mo, compared with $20/mo for Stamp.
Which Stamp alternatives have an API?
Chatisto, Chative, AIHelp, Sauna, KalTalk mention API or developer access.