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Life & fun · alternatives · 2026

QJ

24 alternatives to Quicksy – Jabber with phone number verification and contact discovery

A spin-off of the popular Jabber/XMPP client Conversations with automatic contact discovery. Sign up with your phone number and Quicksy will automatically—based on the phone numbers in your address book—suggest possible contacts to you.

Quicksy is a mobile messaging app based on the open-source Jabber/XMPP protocol that lets users sign up with their phone number and automatically discover contacts from their address book who also use the service. It… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Quicksy – Jabber with phone number verification and contact discovery launched in 2018; newer entries below may have overtaken it.

  1. 1

    Hi HN! I’m proud to share that we have built a real 3rd party iMessage client for Android. We did it by reverse engineering the iMessage protocol and encryption system. It's available to download today (no waitlist): https://play.google.com/store/apps/details?id=com.beeper.ima and there's a technical writeup here: https://blog.beeper.com/p/how-beeper-mini-works. Unlike every other attempt to build an iMessage app for Android (including our first gen app), Beeper Mini does not use a Mac server relay in the cloud. The app connects directly to Apple…

    2023 · beeper.com · its alternatives →

  2. 2
    JMP▲136

    Boundaries for your phone number, not for you

    2023 · jmp.chat · its alternatives →

  3. 3
    AnonymSMS▲275

    Temporary phone number for online verification

    2022 · anonymsms.com · its alternatives →

  4. 4
    MailDump▲270

    Find, extract and verify emails automatically

    2018 · maildump.co · its alternatives →

  5. 5

    Hi HN – I built an open-source, self-hosted Model Context Protocol (MCP) server for WhatsApp: https://github.com/lharries/whatsapp-mcp It connects to your personal WhatsApp account via the WhatsApp Web multi-device API (using whatsmeow from the Beeper team), and doesn't rely on third-party APIs. All messages are stored locally in SQLite. Nothing is sent to the cloud unless you explicitly allow your LLM to access the data via tools – so you maintain full control and privacy. The MCP server can: - Search your messages, contacts, and groups - Send WhatsApp messages to…

    2025 · github.com · its alternatives →

  6. 6

    Your free, instant & disposable SMS solution

    2023 · receive-smss.com · its alternatives →

  7. 7
    VerifyKit▲175

    Verify your users faster and cheaper than ever

    2022 · verifykit.com · its alternatives →

  8. 8

    A read-only MCP server that lets your AI agent search and read your own WhatsApp messages. Runs on Cloudflare Workers. - finereli/whatsapp-mcp

    5d ago · github.com · its alternatives →

  9. 9

    Integrate ChatGPT onto your device across all applications

    2023 · quickkey.carrd.co · its alternatives →

  10. 10

    Temporary phone number for online verification

    2023 · temporarynumber.com · its alternatives →

  11. 11
    JVerify▲72

    Better phone number verification

    2021 · its alternatives →

  12. 12

    One‑click SMTP server test with real‑time protocol logs

    2025 · smtp-test.com · its alternatives →

  13. 13

    I wrote this JMAP MCP server that adds email management tools to Claude for searching, reading, and sending emails through FastMail and other JMAP providers in Deno!

    2025 · github.com · its alternatives →

  14. 14

    I got tired of creating a new email account, or setting up (and paying for) a Google Workspace every time I launched a side project. All I wanted was a link I could put on my site that lets someone send me a message and have a conversation. QuickPing gives you a shareable URL (like quickping.dev/to/yourproject). Someone visits it, types their name, email, and a message. You get notified and reply from a dashboard. They get an email with a link back to the thread. No chat widget, no embed code. Just a link you add to your site. Built with Next.js, Neon, and Mailgun. I'm using it for…

    Jul 2026 · quickping.dev · its alternatives →

  15. 15

    Quickgram is a secure chat app for instant messaging

    2025 · its alternatives →

  16. 16

    got tired of paying $29–99/month for simple contact forms on landing pages and side projects (Typeform, Tally, etc.).So I built GitForms: an open-source contact form that stores submissions as GitHub Issues.How it works:Form runs on your Next.js 14 site (Tailwind + TypeScript) On submit → creates a new Issue in your repo via GitHub API You get instant email notifications from GitHub (free) Zero ongoing costs:No database, no backend servers Deploy on Vercel/Netlify free tier in minutes Configurable via JSON (themes, text, multi-language) Perfect for MVPs, landing pages, portfolios,…

    Dec 2025 · gitforms-landing.vercel.app · its alternatives →

  17. 17

    Detect and block disposable, temporary, fake email addresses. Fight spam, fraud and free trial abuse. Available as WordPress plugin and via JSON API.

    2017 · istempmail.com · its alternatives →

  18. 18

    Detect scams & protect your inbox in seconds

    May 2026 · 404found.com · its alternatives →

  19. 19

    Send WhatsApp messages instantly without saving contacts

    Jan 2026 · wa-mubashir.blogspot.com · its alternatives →

  20. 20
    FCE▲3

    I built a REST + WebSocket API for programmatic disposable email inboxes. The main use case I kept running into while building: automated testing of sign-up/verification flows. You need a real inbox, a real OTP, and you need it fast. Existing options were either not API-first, had terrible docs, or charged $50/mo before you could even try them. What it does: - POST /v1/inboxes to register an inbox - GET /v1/inboxes/:inbox/otp to pull the latest OTP (parsed automatically) - WebSocket connection for real-time push instead of polling - Attachments, custom…

    Feb 2026 · freecustom.email · its alternatives →

  21. 21
    OTP.io▲26

    Verify users over SMS, WhatsApp and Email, Globally

    2024 · otp.io · its alternatives →

  22. 22

    Customized disposable email addresses with OTP support.

    Jul 2026 · mytempmail.tech · its alternatives →

  23. 23

    Secure, instant chat. No email required. Start in seconds!

    Jul 2026 · chatistry.vercel.app · its alternatives →

  24. 24

    Fast & secure temporary email — privacy without the wait

    2025 · fasttempmail.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →