Compare

Inbox Zero vs Fyxer: which should you pick?

Pick Inbox Zero if you want an open-source assistant you could self-host, with reply tracking, a cold-email blocker and bulk unsubscribe, from $20 a month. Pick Fyxer if you want a polished overlay that drafts in your tone and takes meeting notes, with a free plan to try. Both leave drafts for you to send, and neither runs a scheduling thread over email.

See how it works

By the Momo AI team. 3 min read. Published 16 October 2026.

Inbox Zero or Fyxer: which should you pick?

Pick Inbox Zero if you want to see the code, want the option to self-host, and want Reply Zero's list of emails waiting on you and people you should nudge, plus unsubscribe and cold-email tools. Pick Fyxer if you want the smoothest drafts-in-your-tone experience across Gmail and Outlook and meeting recordings from the same vendor. Pick neither if you want meetings booked over email with approval.

We make Momo AI, so read our placement of it with that in mind. Prices are from each vendor's own pricing page on 16 October 2026 and change often.

What each one actually is

Inbox Zero is an open-source AI email assistant for Gmail and Outlook, with a hosted version at getinboxzero.com and a self-hosting CLI in its GitHub repository. Its pricing table lists drafts in your voice, cold-email blocking, bulk unsubscribe and pre-meeting briefings. Reply Zero tracks what you need to reply to and who to follow up with, and leaves AI-drafted replies in Gmail or Outlook, ready to send or customise.

Fyxer is a closed overlay for Gmail and Outlook. On Pro and above it labels mail and drafts replies in your tone; its FAQ says you decide what gets sent. It records and summarises meetings and drafts the follow-up.

Price

Inbox Zero: Starter $20, Plus $35 and Professional $50 per month with the annual toggle selected; the FAQ says annual billing saves up to 20 percent, and monthly figures are not shown in the page text. The email app itself is free to use and the AI plans include a 7-day free trial.

Fyxer: Free plan with 400 credits a month and no drafting or sorting; Pro $37 per month billed annually or $49 monthly; Team $64 annual or $99 monthly; 14-day Team trial.

Both bill in US dollars through a card, so Indian buyers pay conversion charges and GST on top.

Where both stop

Both leave drafts in your inbox for you to send, which is the right default. Inbox Zero goes further than Fyxer on tracking replies owed. Neither offers free slots in a normal email and books the one picked, and neither emails you a morning brief with the day's drafts ready. [Momo AI](/) does both inside Gmail, tracks promises in both directions, and stops every send at an approval card with a 10-second undo. Limits: Gmail only, not open source, no Outlook. See the Inbox Zero alternative and Fyxer alternative pages.

Momo AI vs Fyxer, side by side

Fyxer pricing page

	Inbox Zero	Fyxer
Price	Starter $20, Plus $35, Professional $50 per mo on annual billing; email app free; 7-day trial on AI plans	Free tier; Pro $37/mo annual or $49 monthly; Team $64 annual or $99 monthly
Works inside Gmail or replaces it	Works inside Gmail or Outlook; also a free email app	Works inside Gmail or Outlook
Outlook	Yes	Yes
Drafts in your voice	Yes	Pro plan and up
Follow-up tracking	Reply Zero: replies owed and people to nudge	Follow-up reminders
Schedules over email	Not stated	Draft reply with a booking link
Who presses Send	Drafts wait for you; sending rule not stated	You; Fyxer does not send on your behalf
Training on your email	Not stated	Not stated
Free tier	Email app free; AI plans 7-day trial	Free plan, 400 credits/mo, no drafts
Open source, self-host option	Yes	No

Prices read on 16 October 2026 from getinboxzero.com/pricing and fyxer.com/pricing. They may change. Momo AI is free during early access; Pro at ₹499 per month is planned.

Control

Nothing leaves without you

Every email and every cancellation shows up as a card first. Edit it, send it, or discard it. Sends wait 10 seconds so you can undo. Everything Momo AI reads, drafts and sends is on the Activity page.

How Momo AI handles your data

Questions

Is Inbox Zero better than Fyxer?

Inbox Zero is better if you want open source, self-hosting and Reply Zero's tracking of replies owed. Fyxer is better if you want polished drafts in your tone plus meeting notes and a free plan.

Is Inbox Zero free?

The Inbox Zero email app is free to use, and the code is open source so you can self-host. The hosted AI plans start at $20 per month on annual billing with a 7-day trial.

Does Fyxer have reply tracking like Inbox Zero's Reply Zero?

Fyxer's homepage shows follow-up reminders. Inbox Zero's Reply Zero tracks what you need to reply to and who to follow up with, with drafts waiting.

What is an alternative to Inbox Zero and Fyxer?

Momo AI, if you are on Gmail and want follow-ups, promises, meetings booked over email and a morning brief, with a human tap on every send. Free in early access.

Tomorrow starts with a brief.

Join the waitlist. The day your seat opens, connect in about a minute and see what needs you.