Best Letters Alternatives
Updated February 2026
Looking for alternatives to Letters? We found tools across 2 categories that offer similar functionality. The top-rated alternatives include Vocal (5.0★) , UnInbox (5.0★) , and Inboxly AI (5.0★).
Letters vs Top Alternatives
Best Email clients Alternatives to Letters
Vocal
Simply send voice messages in Gmail
UnInbox
Open Source Modern email for teams and professionals
Inboxly AI
Your AI-Powered Public Mailbox: Become Limitlessly Reachable
HEY
Email at its best, new from Basecamp
Postmark
Email for web applications
ImprovMX
Create free email aliases for your domain name
lockrMail
Protect your inbox and optimize your browsing
Steer
Perfect your communication without having to think about it
Mailgun
Email Service for Developers
MailMaestro
Your AI email copilot for Gmail and Outlook.
Mailmeteor
Everything you need for better email
GoodByEmail
Clean up your email inbox, privacy-first. Even works offline
Filo Mail
Turn your inbox into actionable to-dos
CloudHQ
Gmail Productivity Tools | Sync, Migration & Back up
MicDrop
Send audio messages in Gmail
Simplify Gmail
Brings the simplicity of Google Inbox to Gmail.
Spike
Step aside, email. This is a job for Spike
Nylas
Integrate inbox, calendar, and meetings into your app
Export Emails to Sheets by cloudHQ
An email parser made easy.
Free, Private & Simple Temporary Email
Anonymous, Simple & Ad Free Temporary Email, by Internxt
Mailforge
Cold Email Infrastructure Sorted in Minutes
Lero - Email Validator
Zero bounce for founders
InboxAgents - Intelligent Unified Inbox
The intelligent unified inbox for creators & builders.
DragApp
All-in-one workspace in Gmail.
Migadu
The missing email service for domains
MailSlurp
Modern Email APIs for Developers and QA teams.
Boomerang for Gmail
The ultimate toolbox to control sending/receiving emails
Future Me
Send an email to your future self
Birthdays Reminder
So now you can finally delete your Facebook account
compose.ai
Write email at the speed of thought with AI.
Best Messaging apps Alternatives to Letters
Vocal
Simply send voice messages in Gmail
UnInbox
Open Source Modern email for teams and professionals
Inboxly AI
Your AI-Powered Public Mailbox: Become Limitlessly Reachable
HEY
Email at its best, new from Basecamp
Friendify AI
The ultimate AI for effortless conversations.
Lancepilot
Run WhatsApp Marketing Campaign, tracking, Scheduling & CRM
Oom
The chat app that skips the small talk
Gameram
Where players connect, socialise, and create
Govar – English speaking app
Practice speaking English with people from other countries
Stream Chat
The #1 chat API for custom messaging apps.
OneSignal
The most widely used customer engagement solution
Noor Beta
Time to replace Slack
FixMeBot
AI-powered Language Assistant on Telegram
Cryptocurrency Alerting
Price alerts, wallet monitoring, exchange listings and more
Rasayel
WhatsApp business messaging, automation, chatbot & broadcast
EngageLab
World-leading Customer Engagement Platform
Frequently Asked Questions
What are the best alternatives to Letters?
The top-rated alternatives to Letters include Vocal, UnInbox, Inboxly AI. These tools offer similar functionality in categories like Email clients, Messaging apps, Design mockups.
How many alternatives to Letters are there?
There are 50 alternatives to Letters listed on FactCheckTool, spanning 2 categories.
What is the highest-rated alternative to Letters?
Vocal is the highest-rated alternative to Letters with a rating of 5.0/5 based on 2 reviews.
Don't Get Fooled by Fake Social Media Videos
The world's first fact checker for social media. Paste any link and get an instant credibility score with sources.
Try FactCheckTool Free