Tight Studio Brings Screen Recording, Editing, and AI Narration Into One Mac App Tight Studio, founded by Ethan Jiang, launched a Mac app that combines screen recording, editing, and AI narration into one tool, allowing users to create polished product demos and tutorials without switching between multiple applications. The app features automatic zoom, multi-clip recording, AI voiceover generation, and annotation tools, targeting product marketers, founders, and support teams. For Mac teams building product demos and user tutorials, the usual workflow means juggling a separate screen recorder, a video editor, and sometimes a voiceover tool just to get one polished clip out the door. Ethan Jiang, founder and CEO of Tight Studio, built the app to close that gap for founders, product marketers, and Mac teams who need to turn raw screen recordings into finished demos without stitching together multiple tools. Jiang began building Tight Studio after trying to create polished demos for his own products. Screen Studio handled automatic zoom and cursor motion well, but at the time its single-recording workflow meant he still needed other tools when a demo required multiple takes, AI-generated narration, or visual annotations. Tight Studio grew from that gap: a Mac recorder that keeps the polished zooms while letting creators record, edit, narrate, and annotate an entire demo in one place. One app, from recording to finished video Tight Studio positions itself as a screen recorder for product demos and user tutorials https://tight.studio/ , combining capture and editing in a single Mac app. Rather than exporting footage to a separate editor, users record, trim, and finish the video in one place. A core feature is automatic zoom: the app detects clicks and cursor activity during a recording and adds smooth zoom effects around them, so the viewer's attention follows the action without manual keyframing. Pixa Turns a Year of Habits Into One Colorful Grid You Can Actually Read https://startupfortune.com/pixa-turns-a-year-of-habits-into-one-colorful-grid-you-can-actually-read/ Swedish studio Tulip Tech built Pixa, a customizable Year in Pixels app that has grown to over 425,000 users across 180+ countries by turning daily habits and moods into a single readable grid. - year in pixels habit tracker https://startupfortune.com/pixa-turns-a-year-of-habits-into-one-colorful-grid-you-can-actually-read/ - daily mood tracking visualization app https://startupfortune.com/pixa-turns-a-year-of-habits-into-one-colorful-grid-you-can-actually-read/ Multi-clip recording lets users capture a demo in several takes rather than one continuous pass, then trim and arrange those clips into a single finished video. For anyone who has re-recorded an entire demo because of one mistake three minutes in, that alone changes the workflow. Narration and annotation without extra tools Tight Studio also builds in AI voice and narration, letting users generate a voiceover from a written script using natural AI voices or a clone of their own voice, removing the need for a separate recording setup or narrator. No microphone, no re-takes over background noise. On top of that, users can annotate recordings directly with arrows, highlights, shape callouts, and animated text, along with editable captions, adding the kind of polish that normally requires a traditional video editor. None of it needs a second app. Captions in particular do double duty: they make a demo easier to follow with the sound off, which is how a lot of self-serve product videos actually get watched. Built for demos, onboarding, and support The combination is aimed at the practical, repeatable work teams do with video. Product marketers use it to record demos for prospects, where the automatic zoom and annotation tools do the work a live presenter would normally handle live, drawing attention to the right part of the screen without a second take. Founders and support teams lean on the same setup for onboarding and tutorials, recording a walkthrough once with narration and captions built in rather than re-explaining the same steps to every new customer over a call. Multi-clip recording matters most in that repeatable-content use case: a support tutorial covering several steps rarely comes out right in a single continuous take, and Tight Studio's approach lets someone record each step separately, then trim and stitch the clips together afterward rather than starting over from scratch on a mistake. That is a small workflow change with a real effect on how often a video actually gets finished, since the alternative is usually re-recording the whole thing or leaving it half-done. Tight Studio also supports shareable links, so a finished recording can be sent to reviewers without exporting or re-uploading the file. Its team workspace keeps recordings organized by project and supports multi-user collaborative editing, allowing teammates to continue editing a clip or hand work off to one another. Where it fits against existing tools Tight Studio is aimed at users who want more than a basic screen recorder but less complexity than a full video editor. The company positions it as an alternative to tools like Screen Studio for teams that want multi-clip recording, AI narration, and annotations in one place, and as a simpler alternative to Camtasia for those who want a polished demo without a traditional editor's learning curve. Tight Studio is available as a free download for Mac, and can be found at tight.studio. Antora Energy raises $550 million to build carbon-block heat batteries for the AI power crunch https://startupfortune.com/antora-energy-raises-550-million-to-build-carbon-block-heat-batteries-for-the-ai-power-crunch/ Antora Energy closed a $550M Series C on July 30, 2026, valuing the thermal-battery startup at $2.47 billion. The round funds a second U.S. factory as Antora's carbon-block heat storage technology targets the power bottleneck throttling AI data center growth. A live 5 GWh deployment at a South Dakota ethanol plant, the largest of its kind in the... - carbon block thermal batteries for data https://startupfortune.com/antora-energy-raises-550-million-to-build-carbon-block-heat-batteries-for-the-ai-power-crunch/ - AI power infrastructure investment funding https://startupfortune.com/antora-energy-raises-550-million-to-build-carbon-block-heat-batteries-for-the-ai-power-crunch/ The bet behind the product is a broader shift in how software gets explained to buyers: fewer scheduled walkthroughs with a salesperson, more polished video a prospect or new user can work through on their own time. That puts the burden on the tool itself to look finished without a production team behind it, which is the gap Tight Studio is built to close for Mac-based founders and product teams.