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Alternatives

Products that do what ZeroContact does

Instant form alerts via Push, Slack & LINE—no more spam

  1. 1
    Zero845

    AI native email client

    2025 · 0.email

  2. 2
    Acapela715

    The central inbox for all your work tools

    2022 · acapela.com

  3. 3

    Receive instant alerts when new startups go live

    2022

  4. 4

    Drop-in direct billing SDK to skip the 30% Apple Tax

    Mar 2026 · zerosettle.io

  5. 5
    Zero110

    Email organizer app designed to help you reach inbox zero

    2015

  6. 6

    Automate cold outreach - email, Linkedin & Twitter

    2023

  7. 7
    SaveMRR104

    See how much you're losing to failed payments on Stripe

    Apr 2026 · savemrr.co

  8. 8MS

    Hi HN :) really excited to share this with you. The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels…

    Jul 2026 · captchainbox.com

  9. 9
    ZeroMail104

    Take control of your Inbox.

    2015

  10. 10CS

    Robocalls and unwanted calls are one of the biggest hassles these days. Over 50% of phone traffic is spam. I'm the founder of CallStop: https://apps.apple.com/us/app/callstop/id1455892856 CallStop allows you to: - Block 100% of robocalls on your current number, using your contacts as a whitelist - Effortlessly email call invites to an any email (that can be joined in one tap, the PIN is embedded), where the recipient can only call you starting 5 minutes before the meeting start and up until 5 minutes after the meeting end - Pause call filtering and have it…

    2020

  11. 11

    Sequences, infrastructure, deliverability. One product.

    Mar 2026 · supersend.io

  12. 12

    Intelligent prevention of spam calls on iOS.

    2020

  13. 13

    Go from send to scheduled meetings, 24/7

    Nov 2025

  14. 14HA

    Hi, Creator here. I'm sort of reposting the same thing from about 208 days ago. The first version kinda sucked. I guess this is my first lean not-really-a startup experience. The new version is much better. http://thehorcrux.com/why-i-built-horcrux-app/ Let me know what you think, Here are some promo codes: 97HNR6HW4EPH K9R7KTWPTJJ6 WPM3MK4WXNHY 3P7N9RNPF4M4 3N49NP9P7TR6 Cheers, Suhas Sharma

    2013 · thehorcrux.com

  15. 15ZS
  16. 16

    Free disposable email. Zero tracking. Zero logs.

    Jun 2026 · quick-temp-mail.github.io

  17. 17IM

    orignally shared this on startup school... i thought id' share it here. i'm using a `nocode communication tool` (a web-based interface... a single browser tab!) for all of these things: 1. landing page — the landing page is the product and i wanted for folks to feel "transported" right into the app without having to walk through a shitty b2b marketing-style content. this is akin to my experience back in the `BBS` days of the mid-90's where you were immediately into the app, community, and tool. no terms of service, no privacy policy. just pure, immediate value. 2. building community — we…

    2021

  18. 18IL

    Hey Guys, We created Leadmachine after a HUGE pivot on ignite100(UK incubator). We could see the pain of all the other startups wasting money and buying poor leads while struggling to find those early customers. Wouldn't it be cool to have contact details for all websites using Olark or Google analytics while turning over £100,000 in the UK? We can do that with Leadmachine. I'd be happy to answer any questions you may have or listen to feedback!

    2012 · leadmachine.io

  19. 19IM

    Hey HN, I’m a solopreneur and have been in the SaaS space for the past 3 years. My last 3 startups failed, and a common challenge in all of them was figuring out how to reach my audience. Recently I started with cold outreach (its a struggle, since I dont have much experience with marketing). I am finding leads mainly using exa.ai websets (web vector search, extremelly good for multiple use cases, recommend checking them out) and then sending them through smartlead. I ran the campaign for the past 30 days and 12-15% emails always bounced. This wasted my email credits & chances of reaching…

    2025 · verifyemailai.com

  20. 20MA

    Hi there, So a buddy a couple of days ago came up with the idea for a new SaaS product regarding gpt and image generation. We did a quick MVP that barely works, it breaks almost 50% of the time but we still wanted to validate the idea before going all in. We have almost 1k followers on Twitter together. Did a quick post describing the idea with a stripe link in the comments with a 5$ value, no landing page, and no shipped product. In exchange, the buyers become beta users. Around 30 mins later we got our first sale next 30 mins another 5$ and so on. Do we consider the idea validated? The…

    2023

  21. 21

    Clean your email list for $19, not $300

    Jun 2026 · mailcull.io

  22. 22

    Turn client calls into clear next steps—no meeting bot

    Jul 2026 · app.meetingclarity.app

  23. 23

    Templates, sending, and logs - without the $20/month markup

    May 2026 · letterstack.dev

  24. 24

    Email verification API — 80% cheaper than ZeroBounce

    Jun 2026 · mailsguard.io

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