Alternatives
10 best Proton Mail alternatives
Tools that cover the same task as Proton Mail (assistant), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.
- Proton Mail starts at
- Not listed
- Free plan
- Free plan
- API
- API unknown
- 01
FileShot.io
FileShot.io is a privacy-first file host with zero-knowledge encryption, large transfers, password protection, and built-in file tools. Paid tiers raise storage limits, file sizes, and collaboration features while keeping encryption on every plan.
Best for: Users sharing sensitive files who want encrypted hosting instead of ad-supported transfer sites.
- 02
ChatDaddy
ChatDaddy is a WhatsApp CRM and business automation platform unifying WhatsApp, Instagram, Facebook Messenger, TikTok, SMS, and email. It provides broadcast campaigns, AI agents, multichannel inbox, payments, and integrations for marketing and support teams.
Best for: Growing businesses that run high-volume WhatsApp and social messaging campaigns with CRM-style automation.
- 03
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.
- 04
Dypt
Dypt is a task manager that breaks work into nested subtasks and uses AI to generate breakdowns, ideas, and lists. The site highlights hierarchical tasks, sharing, reminders, calendar views, and tiered plans with AI action limits for personal and small-team use.
Best for: People who want flexible task planning with optional AI help for breakdowns, lists, and collaboration.
- 05
EchoSync
EchoSync automates post-purchase review requests over email or SMS and drafts AI responses that match a brand voice. Campaigns ingest CSV uploads or CRM connections, track conversion metrics, and include a 14-day trial on paid tiers.
Best for: Local businesses and SMBs trying to increase Google review volume without manual follow-up.
- 06
AI Puffer
AI Puffer is a WordPress plugin that adds AI chatbots, content writing, image generation, forms, and automations to WordPress sites. It supports AI Puffer Cloud with monthly free credits or your own API keys from OpenAI, Google, Anthropic, and other providers, with usage tracking and WooCommerce integrations.
Best for: WordPress site owners who want embedded chatbots, AI content workflows, and image tools without building custom integrations.
- 07
DomainCanary
DomainCanary helps organizations move DMARC policies toward enforcement without blocking their own mail. It offers hosted DMARC, staged policy changes with approval steps, and rollback if a step blocks legitimate senders, plus reporting tuned for MSPs and domain portfolios.
Best for: IT admins, MSPs, and security teams managing DMARC enforcement across many customer domains.
- 08
CREAO
CREAO builds autonomous AI agents that connect to existing business tools, run on schedules, and compound organizational knowledge. Users describe workflows in plain language to spawn agents for quotes, ads, inventory snapshots, SEO briefs, video generation, image creation, voice output, and browser automation with optional human approval gates.
Best for: Operators, marketers, and small teams who want recurring AI agents wired into email, sheets, Slack, and other SaaS stacks.
- 09
Kleap
Kleap is an AI builder for websites, apps, landing pages, and internal tools with hosting on kleap.io domains. Users describe projects in natural language, iterate with an AI edit gauge, and publish or connect custom domains on paid plans.
Best for: Founders and marketers who need fast no-code sites or apps with optional custom domains.
- 10
Roame
Roame is an award flight and hotel search product for travelers using points and miles, with SkyView search, alerts, and membership tiers for deeper availability windows. The homepage promotes saving on premium cabin awards and tracking points in an award wallet.
Best for: Points and miles travelers who want award availability search, alerts, and extended SkyView windows via paid membership.
Proton Mail alternatives: common questions
What is the best free alternative to Proton Mail?
FileShot.io has an ongoing free plan. Pricing metadata describes a free tier with 10 GB per-file limit and encrypted sharing without ads. Free plans change, so check the vendor before relying on one.
What is the cheapest Proton Mail alternative?
Dypt has the lowest listed starting price at $5/mo.
Which Proton Mail alternatives have an API?
FileShot.io, ChatDaddy, Chatisto, Dypt, AI Puffer mention API or developer access.