We've curated 46 of the best alternatives to Arch AI, ranked by feature overlap, topic similarity, user ratings, and popularity. Harmony AI Email Voice Assistant, EmailWhiz, and Letty lead the list as the closest matches.
Updated May 18, 2026
The list includes 39 free alternatives, 4 freemium, 2 paid, and 1 with a free trial, so whether you're looking for a no-cost replacement or a more capable paid tier, there's an option to compare. Arch AI itself is free, which makes free alternatives the most natural starting point.
Many of these tools cluster around use cases like Free, Productivity Enhancement, Email Management, and Time Management — the same problem spaces Arch AI addresses. Cross-referencing tools that overlap on multiple topics gives a more reliable signal than category alone, because two products in the same category can still serve very different workflows.
Our ranking weighs eight signals: shared category, topic overlap, feature overlap, name and description text similarity (via PostgreSQL's pg_trgm and tsvector), Bayesian-smoothed user ratings, pricing-model match, popularity, and editorial overrides. Scores are then normalized within each tool's own candidate pool so the top match always represents the strongest available alternative.
Use the table of contents below to jump to free or paid alternatives, or scroll down to compare each option side-by-side with Arch AI.
Ranked by compatibility score
Emails
Reach Inbox Zero hands-free with voice-controlled email.
Like Arch AI, Harmony AI Email Voice Assistant is in the Emails category. Harmony AI Email Voice Assistant is freemium, while Arch AI is free. Worth comparing on the detail page.
Emails
Supercharge Gmail with smart replies and task automation.
39 free and 4 freemium options.
2 paid options.
2 paid alternatives to Arch AI on /tools/arch-ai/alternatives.
22 additional candidates
Harmony AI Email Voice Assistant ranks as the highest-scoring alternative to Arch AI, based on shared category, topic overlap, feature similarity, and user ratings. Ratings are still being collected for this tool.
Yes — 39 fully free and 4 freemium alternatives are available, including Harmony AI Email Voice Assistant, Letty, and Canary Mail.
Harmony AI Email Voice Assistant is priced differently (freemium) and sits in the same category (Emails). View its detail page to compare features, integrations, and reviews side-by-side.
Top Emails alternatives include Harmony AI Email Voice Assistant, EmailWhiz, Letty, and Superhuman. These tools share the same primary category and have meaningful topic overlap with Arch AI.
Like Arch AI, EmailWhiz is in the Emails category. EmailWhiz is paid, while Arch AI is free. Worth comparing on the detail page.
Emails
AI-powered email assistant for seamless communication
Like Arch AI, Letty is in the Emails category. Letty is freemium, while Arch AI is free. Worth comparing on the detail page.
Emails
AI-powered email for blazing speed and productivity
Like Arch AI, Superhuman is in the Emails category. Superhuman is paid, while Arch AI is free. Worth comparing on the detail page.
Emails
Automated productivity, content, and inbox management.
Like Arch AI, Canary Mail is in the Emails category. Canary Mail is freemium, while Arch AI is free. Worth comparing on the detail page.
Emails
Enhanced email productivity with faster composition.
Like Arch AI, Re:GPT is in the Emails category. Re:GPT is freemium, while Arch AI is free. Worth comparing on the detail page.
Emails
Craft engaging emails instantly with AI
Like Arch AI, Free AI Email Generator is in the Emails category. Free AI Email Generator is free-trial, while Arch AI is free. Worth comparing on the detail page.
Goals
Your new accountability buddy
Dewey: Your new accountability buddy shares 2 topics with Arch AI: Free and Time Management. Both are free.
Email Replies
Reply to any email in 5 seconds with AI.
MailBuddy shares 2 topics with Arch AI: Email Management and Free. Both are free.
Gmail Email Writing
ChatGPT AI for Gmail: Generate, summarize, translate, and improve emails.
AI Mail Assistant shares 2 topics with Arch AI: Email Management and Free. Both are free.
Gmail Email Writing
AI-powered Gmail assistant for faster, smarter responses
ChatGPT Mail Responder shares 2 topics with Arch AI: Email Management and Free. Both are free.
Email Summaries
Email summarization for productivity.
Concisely shares 2 topics with Arch AI: Email Management and Free. Both are free.
Chatgpt
AI assistant extension to supercharge your productivity.
NectarGPT shares 2 topics with Arch AI: Productivity Enhancement and Free. Both are free.
Task Management
AI-powered productivity app for dynamic task management
Flowlist shares 2 topics with Arch AI: Productivity Enhancement and Free. Both are free.
Chatgpt
Quick launch ChatGPT with a single shortcut key.
Quickcast shares 2 topics with Arch AI: Free and Time Management. Both are free.
Writing
AI-powered assistant for revolutionary productivity.
Torq.live shares 2 topics with Arch AI: Email Management and Free. Both are free.
Writing
Edit, read, and write smarter with AI power.
WonderAI shares 2 topics with Arch AI: Productivity Enhancement and Free. Both are free.
Website Blocking
Blocks distracting websites on Chrome.
Concentration shares 2 topics with Arch AI: Free and Time Management. Both are free.
Chatting
Boosts online productivity.
ChapaGPT shares 2 topics with Arch AI: Free and Time Management. Both are free.
Email Summaries
Summarize emails instantly with AI
Rizemail shares 2 topics with Arch AI: Email Management and Free. Both are free.
Text Autocompletion
Enhanced writing productivity for ChatGPT users.
Complete AI shares 2 topics with Arch AI: Productivity Enhancement and Free. Both are free.
Operating System
AI-powered OS for the future of computing
Kaba shares 2 topics with Arch AI: Free and Time Management. Both are free.
Ai App Integration
Ship custom AI tools in minutes
Retool shares 2 topics with Arch AI: Productivity Enhancement and Free. Both are free.
Task Automation
AI actions for your Shortcuts app
AI Actions shares 2 topics with Arch AI: Free and Time Management. Both are free.
37 more free/freemium alternatives listed below. Browse all Arch AI alternatives ↓
43 free or freemium alternatives to Arch AI on /tools/arch-ai/alternatives.
CalendarScan shares 2 topics with Arch AI: Free and Time Management. Both are free.
Neither Arch AI nor Harmony AI Email Voice Assistant has user ratings yet — be the first to review either tool to help future visitors compare them.
