mostra: a Marker.io alternative where people just talk.
Both collect website feedback from people without an account. Marker.io sends a screenshot and technical detail to your issue tracker. With mostra, people talk while they use the site, and each point becomes a comment on the page.
We make mostra, which competes with Marker.io. The facts about Marker.io come from Marker.io's public pages, checked on November 9, 2026, and each row links to them.
Pick mostra if
- The people you ask would rather talk than type, and move between pages while they do.
- You want each point as a comment on the page itself, not a report in a tracker.
- You want to check each fix on the next deploy. Comments keep the version they were made on, once your site reports one.
Side by side.
| What | mostra | Marker.io |
|---|---|---|
| Giving feedback | People open your invite link and start. No account, no extension. They're asked for a name, never an email address. | Its widget, with no account. Clients and stakeholders report for free on every plan, and may be asked for a name and email. Sources 1 for Giving feedback 2 for Giving feedback |
| Talking | Press Talk and use the site, moving between pages. When you press Stop, an OpenAI model turns what you said into comments on what you pointed at or named. Tested in desktop Chrome and Firefox, not on phones. | Its help center says there's no built-in screen recording yet, and suggests a Loom link or an uploaded video or voice note. Speech to text is under review on its feature board. Sources 1 for Talking 2 for Talking |
| Where a comment sits | On the element you clicked, pointed at or named. The pin finds the element again after the page re-renders. If it can't, the comment stays in the list without a pin. Look-alike elements that swap places can catch the wrong pin. | On a screenshot of the page, which the reporter draws on with arrows, shapes and text. Sources 1 for Where a comment sits 2 for Where a comment sits |
| What's captured | The words, the element with its state and styles, the page, window size, browser, and your site's version if it reports one. No screenshot, logs, session replay or video. | A screenshot, browser, operating system, screen size and URL on every plan. Its Team plan and up add console logs, network requests, session replay and your own data. Sources 1 for What's captured 2 for What's captured |
| Coding agents | An MCP server for your own coding agent. It reads and replies to comments and marks them fixed or answered. A person marks them resolved. | An MCP server on every plan. An agent can read reports with their screenshots and logs, change status, priority and assignee, and comment. Sources 1 for Coding agents 2 for Coding agents |
This is a selection of points we chose, not everything either tool does.
Talk while you look around.
With mostra, press Talk, use the site as usual and say what you think. Each point becomes its own comment, on what you pointed at or named.
“The logo feels small, I can’t find the pricing page, and this button looks disabled.”
How this was checked
Marker.io's public pages were read on November 9, 2026. No Marker.io account was opened and Marker.io wasn't tested, so each row says what those pages said that day. Products change, so check Marker.io's site before you decide.
If something here is wrong or out of date, write to [email protected] and it will be corrected within 7 days.
mostra today
A beta, with no service level agreement, SSO or SOC 2. The script on your site is open source, under the MIT license. The free plan has one project, one builder and 15 talking minutes a month, of which one invited person can use 7.
Plans and prices are on the home page, not here.
Names
Marker.io is a trademark of its owner. mostra is not affiliated with, or endorsed by, Marker.io. How to reach mostra is in the Terms.