Onset Review (2026): Pricing, Features & Honest Verdict

Onset is a release notes and changelog tool that publishes from your editor through an MCP server. We found the free plan carries a custom domain, the API and the MCP server, which rivals charge for. Best for: small SaaS teams shipping often. Price: from $24/mo (free plan: yes). Rating: 7.5/10.

What is Onset?

Onset (onset.io) is a product communications platform for release notes, changelogs and roadmaps. Its legal entity is OneClick Lab, LLC, trading as Onset, and its terms of service carry an effective date of 1 August 2021, so this is a company with four years behind it rather than a launch-week experiment. Sonny T. is the maker credited on Product Hunt, where Onset MCP launched on 2 September 2026 and reached number sixteen for the day with 100 upvotes. The launch was not the platform itself but the MCP server, which lets Claude, Cursor or any MCP client draft, schedule and publish release notes without leaving the editor.

The core loop is simple and it is the one every team fudges. You ship something, you write it up, you publish it to a branded changelog on your own domain, and your customers get notified by Slack, Discord or email. Onset covers public release notes for customers and internal ones for the team, an embeddable widget so updates appear inside your app, scheduled publishing so you can coordinate a launch across time zones, and an AI assistant that turns pull requests and completed tasks into something a customer will read. There is a status page at status.onset.io, a documented REST API, webhooks, a widget API and a JavaScript SDK on GitHub. That is a fuller developer surface than the category usually bothers with.

What are Onset’s key features?

An MCP server that publishes straight from your editor

This is the launch and it is the best thing here. Connect Onset to Claude or Cursor and the model can draft from your messy notes, refine the wording in plain language, and push the result to your live changelog without you opening a browser tab. Release notes get skipped because they require a context switch at the exact moment you are least willing to make one, which is right after a deploy. Removing the tab is the whole fix. Better still, the MCP server sits on the free plan, so you can wire this up without paying anything.

A free plan that includes a custom domain

Onset’s free tier covers unlimited release notes, unlimited projects, 1,000 subscribers, one teammate, a public changelog page on your own custom domain, the embeddable widget, the MCP server and the REST API. Custom domains are normally the first thing a changelog vendor puts behind a paywall, because it is the feature that makes the page look like yours. Giving it away at zero, along with API access, is a real decision and it is the reason a solo founder can run this properly without a card on file.

AI drafting and summaries, on the paid tiers

The AI Writing Assistant and the AI Summary Generator both start at the $24 Team plan. The writing assistant converts pull requests and closed tasks into customer-ready prose; the summary generator condenses a set of releases into a digest. Note the split that results: the MCP server is free and Onset’s own AI writer is not. In practice that means you bring your own model through MCP for nothing, or you pay $24 a month to use theirs. For most teams reading this, the first path is already paid for.

Notifications and an in-app widget

Publishing without distribution is a blog nobody reads. Onset pushes release alerts to Slack, Discord or email in one click, and the embeddable widget drops the changelog into your product so users see updates without leaving. The email side is where the tiers bite: a custom sender address, a custom email subject, approved email domains and email-whitelisted pages are all Business-only features. If you want release emails to come from your own domain rather than Onset’s, that is the $48 plan.

How much does Onset cost?

Onset starts at $24 a month. There are three plans: Free Forever at $0, Team at $24 and Business at $48, plus a 30-day free trial on either paid plan and no credit card required for Free. Subscribers go 1,000, then 10,000, then unlimited. Teammates go one, then five, then unlimited. Release notes and projects are unlimited on all three tiers, including Free, which is the right call and not a universal one in this category. Billing is prorated on both upgrades and downgrades, and if you downgrade below a limit your data is kept but you cannot publish until you are back under it.

One caveat on those figures. The pricing page ships with the Yearly toggle preselected, so $24 and $48 are the annual-billing rates. The month-to-month prices are rendered by JavaScript when you flip the switch and do not appear in the page source at all, which means you cannot compare the two cadences without loading the page and clicking. Publishing only one side of a toggle by default is a small thing, but it is the one place where this otherwise clear pricing page makes you work.

The comparison is where Onset looks strongest. AnnounceKit, its most direct competitor, charges $79 a month on annual billing for Essentials, $129 for Growth and $339 for Scale, or $89, $149 and $399 month to month. Unlimited team members do not arrive until Growth. So AnnounceKit’s cheapest plan with an unlimited team costs $129 a month against Onset’s $48, which is 2.69 times the price for the same headline capability. Even AnnounceKit’s entry tier at $79 is 1.65 times Onset’s top plan and still caps your team. Olvy is worse: Essentials at $60 a month includes one builder, extra builders are $25 each per month, integrations are $20 a month each, and Business is $240 a month for five builders. That is five times Onset Business for a fifth of the seats.

While checking those figures, AnnounceKit’s own annual discount does not hold up. Its banner promises “Save 15%”. Essentials at $79 against $89 is 11.24%, Growth at $129 against $149 is 13.42%, and only Scale at $339 against $399 reaches 15.04%. The advertised saving is accurate on the most expensive plan and overstated on both cheaper ones, which is worth knowing if you are choosing between them on price.

Who is Onset best for?

Use Onset if you are a small SaaS team that ships regularly and keeps meaning to write the changelog. The free tier is enough to run a real public changelog on your own domain with 1,000 subscribers and the MCP server, which covers most early-stage products completely. Team at $24 is the right plan once you have more than one person publishing or more than a thousand subscribers. Business at $48 makes sense the moment you want release emails to come from your own address, which for a company selling to other businesses is sooner than you think.

Skip Onset if you need feedback collection as well as publishing. Olvy and AnnounceKit both bundle feature requests, voting and NPS, and Onset’s published feature set is publishing-first with roadmaps mentioned in the terms of service but not on the pricing page. Skip it too if you are large enough to hit the 10,000 subscriber ceiling on Team, because there is no published overage rate: their own FAQ says you must get back under the limit before publishing again, so it is a hard cap rather than a meter. And if you want a named team behind your tooling, note that Onset publishes an entity and a support address but no team page.

What are the best Onset alternatives?

AnnounceKit is the fullest competitor: changelog, ten-plus widget types, in-app notifications, feature requests and voting, NPS surveys, segmentation, and its own MCP server. It costs $79 a month annually for Essentials and $129 for Growth, where unlimited team members begin. Buy it if you want feedback and publishing in one tool. It is roughly two and a half times the price for that.

Olvy is feedback-led rather than publishing-led, with Essentials at $60 a month and Business at $240. It analyses up to 100 feedback items on Essentials and 10,000 on Business, and charges $25 per additional builder per month plus $20 a month per integration. The per-seat and per-integration add-ons make the real bill much higher than the headline.

Beamer is the long-standing incumbent for in-app announcement widgets and is the tool most teams have already tried. Worth evaluating for its widget quality, though at the time of writing its pricing page returned an expired SSL certificate, which is not a great look for a vendor you would trust with your customer notifications.

Final verdict: is Onset worth it?

Onset is the best-value product in a category that has quietly become expensive. Unlimited release notes and projects on a free plan, a custom domain at zero, an MCP server anyone can use without paying, and $48 a month for unlimited subscribers and unlimited teammates against AnnounceKit’s $129 for the same. There is a real developer surface underneath, a four-year-old legal entity, a status page and prorated billing. Nothing here reads like a weekend project dressed up as a company.

The reservations are modest. The 10,000 subscriber ceiling on Team is a wall with no overage path, the monthly-billed prices are hidden behind a toggle that ships in the wrong position, and everything about email deliverability is locked to the $48 plan, which will push more teams onto Business than the feature list suggests. There is also no feedback or voting layer, so this is a publishing tool and not a product communications suite. If that is what you want, and for most teams shipping weekly it is, Onset does it well and charges less than anyone else. Start on Free, wire up the MCP server, and see how many updates actually go out. 7.5 out of 10.