Life & fun · alternatives · 2026
24 alternatives to Holoholo
A Gmail plugin that ensures inbox zero
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Holoholo launched in 2016; newer entries below may have overtaken it.
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Zero▲845Hi HN, I’m Nizar, and I’m building Zero (https://0.email) — an AI-powered email client that manages your inbox for you. Email hasn’t changed in decades, even though the way we work has. The average knowledge worker now spends close to 30% of their week on email, constantly reacting, replying, and sorting through noise. It’s become one of the biggest productivity sinks in modern work. At the same time, AI has transformed how we write, plan, and collaborate — yet our inboxes are still stuck in the past. I built Zero to fix that. Zero automatically prioritizes, organizes, and even…
2025 · 0.email · its alternatives →
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Inbox Zero Tabs▲398Split inbox tabs for Gmail. 100% private. 100% free
2025 · chromewebstore.google.com · its alternatives →
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Umbra Mail▲76A calmer Gmail where emails look like chat threads
9d ago · umbra.masn.studio · its alternatives →
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Inbox Zero▲821Clean Up Your Inbox In Minutes Newsletter management, AI automation, and email analytics. Inbox Zero is the open-source email app that puts you back in control of your inbox.
2023 · getinboxzero.com · its alternatives →
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I got frustrated with Gmail's lack of customization, and built an extension for myself. It doesn't do much other than modify how Gmail is displayed in Chrome. Does it as minimally as possible (that I can engineer). Done locally, zero remote processing. Currently built the following settings (want to add more soon): Conversations: * Show newest message first * Show every message in a thread (sometimes they're collapsed into numbered bubbles) * Remove AI overviews (retches) Layout/UI: * Minimize the search & top bar * Minimize the far left "rail" (Mail/Chat/Meet) * Hide a bunch…
Mar 2026 · chromewebstore.google.com · its alternatives →
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Hello Inbox▲283Hey HN, I built an email deliverability SaaS with a RAG system. It's trained on all my knowledge and hundreds of real deliverability use cases from 4+ years experience as an Email Deliverability Specialist on Upwork. It solves a frustration problem a lot of businesses are experiencing. I'm looking for feedback so let me know in the comments.
Aug 2026 · helloinbox.email · its alternatives →
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You've Got Gmail▲109Old school AOL "you've got mail" sound for Gmail
2015 · chromewebstore.google.com · its alternatives →
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Never let a thread die, never forget a follow up
2014 · boomeranggmail.com · its alternatives →
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Gmail Offline▲144Use Gmail offline, freaking fast
2014 · chromewebstore.google.com · its alternatives →
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- 22ZH
2020 · zenmail.shapea.com · its alternatives →
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Our AI Assistants sort your emails and draft replies, while Gmelius shared inboxes help your team take over conversations so you don't have to. Start for free.
2013 · gmelius.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 →