Honest comparison
Tella is a genuinely good browser recorder. If your video is you narrating a product, a workflow or a lesson on screen, Tella is built for exactly that and the finished result looks polished with almost no effort.
OverReact is built around a different subject. The thing on screen is not your product, it is somebody else's video — and the whole job is keeping your camera locked to it while you pause, rewind and talk over it.
If you make demos and courses, take Tella. If you make reactions, the sync model and the 9:16 layouts here are the reason to look at OverReact.
Choose Tella when
Browser recorder for screen-based demos, courses and async video
You record screen-based demos, onboarding videos, course lessons or async updates, and you want a shareable, on-brand video page at the end of it.
Choose OverReact when
Purpose-built reaction capture in the browser
You react to someone else's video, you pause and rewind constantly, and you want the source and your camera to arrive in your editor as separate, already-aligned tracks.
Prices last checked July 2026. Pricing moves — confirm on Tella’s own pricing page and on ours before you decide.
The capabilities that actually change how a reaction video gets made. A dash means the tool does not do that thing — which is fine when it was never built to.
| Capability | OverReact | Tella |
|---|---|---|
| What it is built for | Reacting on camera to a source video you load into the studio (Supported) | Screen-recorded demos, courses, onboarding and async updates (Supported) |
| Price | Free tier with 24-hour storage; Creator $15/mo, Pro $29/mo, Founder Lifetime $249 once (Partly supported) | Free plan with limits; paid plans from $19/month billed annually (Partly supported) |
| Runs in the browser with nothing to install | Chrome, Edge or Safari (Supported) | Chrome-based browsers, plus a desktop app (Supported) |
| Screen recording | OverReact records your camera against a video file — it does not capture your screen (Not supported) | Screen, window or tab capture is the core of the product (Supported) |
| The source video as its own track | The source is a real track in the session, exported clean and separate from your camera (Supported) | Whatever plays on your screen is captured as pixels inside the screen recording (Not supported) |
| Staying in sync through pauses and rewinds | Play, pause and seek are recorded as timeline events and replayed at render, so both tracks stay frame-accurate (Supported) | The screen capture matches what you saw, but there is no separate source timeline to re-time afterwards (Partly supported) |
| Changing the layout after recording | Six 9:16 layouts built around a source video and a reacting camera (Supported) | Layouts, backgrounds and frames applied after the take, built around screen-plus-camera (Supported) |
| Trimming and editing inside the tool | OverReact hands off to your editor rather than editing in the browser (Not supported) | Clip-based editing with per-clip retakes and no timeline to learn (Supported) |
| Clean isolated tracks | Camera and source as separate untouched files on Creator and above (Supported) | Exports the composed video rather than the underlying sources (Not supported) |
| Editor project files (FCPXML, EDL, OTIO) | Pro exports a project file that opens pre-synced in Final Cut, Resolve or Premiere (Supported) | Export the finished video and cut it in your editor from there (Not supported) |
| Hosted share pages and viewer analytics | OverReact gives you files; you publish wherever you already publish (Not supported) | Branded share pages, custom domains, CTAs and view analytics (Supported) |
| Vertical 9:16 output | 1080x1920 canvas by default, with TikTok, Shorts and Reels safe zones visible (Supported) | Vertical output is supported; the layouts are designed for screen content (Partly supported) |
Tella is the better product for most video that is not a reaction. These are the honest cases.
OverReact is narrower. It earns its place when the source video is somebody else's and the sync matters.
Four differences that change your week, not your feature checklist.
Subject
This is the fork in the road, and everything else follows from it. Tella records what is happening on your display, because in a demo you are the author of what is on screen.
In a reaction you are not. The source is a finished video with its own timeline, and you need to control it — pause it mid-sentence, jump back ten seconds, skip a section — while the camera keeps rolling.
In Tella
Anything you play on screen is captured as pixels inside the screen recording. It is one flat layer once the take ends.
In OverReact
The source is loaded into the session as a real track with its own clock, so pausing and seeking it are recorded actions rather than accidents.
Sync
Reaction takes are full of rewinds. Each one is a place where your camera and the source stop agreeing about what time it is, which only becomes a problem when you try to change something after the fact.
In Tella
The screen recording matches what you saw while recording, which is fine — but there is no separate source timeline to re-cut against afterwards.
In OverReact
Playback events are stored with the recording and replayed by the renderer, so the composite, the isolated tracks and the project file all describe the same timeline.
Layout
Post-record layouts are the one place these two products genuinely converge, and Tella does it well. The difference is what the layouts are shaped around.
Tella's framings assume a large rectangle of screen content with a small talking head. Reaction layouts assume two performances competing for a vertical frame.
In Tella
Backgrounds, padding and camera framings tuned for screen recordings, applied non-destructively after you record.
In OverReact
Above the Fold, Corner Pocket, Full Focus, Green Room, Sidecut and Split Reaction — six 9:16 arrangements of source and camera. Above the Fold is free; the rest come with Creator.
Ending
Tella's output is a video page: branded, hosted, measurable, ready to send to a customer or a class. That is a real advantage if the link is the deliverable.
In Tella
Publish and share from Tella, with analytics on who watched and how far they got.
In OverReact
OverReact ends at the file. Pro adds FCPXML, EDL or OTIO so your editor opens with the tracks in place, and you publish from wherever you normally publish.
Still unclear on something? Ask us at hello@overreact.tv — a person answers.
You can play a video on your screen and record yourself over it, and the result will look fine. What you will not have afterwards is a separate source track, a separate camera track, or any way to change the layout that does not involve re-recording.
No. OverReact takes a source video into the session and records your camera against it. If your video is a screen walkthrough, Tella is the better tool and we would rather say so.
No. OverReact gives you the composite, the clean isolated tracks and — on Pro — a project file. Publishing happens wherever you already publish, whether that is YouTube, TikTok or your editor's export.
For reactions, OverReact: the canvas is 1080x1920 with the platform safe zones visible while you record, and the six layouts are designed for two people-shaped things in a vertical frame. For a vertical product demo, Tella.
A 7-day full-Pro trial with no card first. After that, Free is 720p with a watermark, 5-minute sessions, one layout, and recordings that are permanently deleted 24 hours after they are created.
7-day full-Pro trial, no card. Record a take, pause it, seek backwards, and see whether the composite still lands where you left it. 14-day refund on your first charge. Cancel any time.