What we shipped lately.

October 22, 2026

• NewPrototypes now run on Expo SDK 58 and React Native 0.88. New projects, the Simulator and the Prototo app on iPhone move together: open a project in Prototo Desktop and it moves over by itself; in the terminal, run proto upgrade once.
• ImprovedPrototo now needs Node.js 22 or newer. Prototo Desktop checks for it on launch and tells you what to install.
• FixedAfter this update, prototypes shared before it show "made with an older version of Prototo" in the app. Open the project in Prototo Desktop and click Publish once; the link stays the same.

September 28, 2026

• ImprovedWhen a published prototype needs an update from you, the share page, your account page and the email all say the same thing: open it in Prototo Desktop, then click Publish. The link stays the same. Re-publishing a link you already shared works on every plan.

September 26, 2026

• ImprovedYour flow link reads more like a whiteboard. Drag any screen where you want it and its arrows follow, tab groups move together, and the arrows are lighter curves with a Connectors switch in the header to hide them.
• ImprovedYour flow link is always your latest export, and notes keep their place. A note left on an earlier export shows which one, so reviewers know when a screen has moved on.
• FixedExport flow takes each screen's picture at the same moment it always did, so a looping animation (the starter logo) no longer comes out blank in your flow.
• NewLeave notes on a flow, on Plus and Team. Anyone with your flow link can switch on Comment, click a spot on a screen and pin a note there; others reply under it, and you resolve it when it's handled. You get one email a day when new notes arrive. Flow links themselves stay free.
• ImprovedYour flow link shows which button goes where. Export flow again and each link leaves the screen at its button, outlined on the picture; several links into one screen join into a single arrow, and a header button counts too.
• ImprovedYour flow link is a canvas now. Open it to see every screen at once, scroll to move around, pinch to zoom into the details, and double-click a screen to bring it up close. Screens are captured sharper, so they hold up when you zoom in.
• ImprovedExport flow in Prototo Desktop is tidier: the Flow view says how many screens you have and what a click does, needs at least 3 screens before it exports, and ends on one View flow button.
• FixedPrototo Desktop no longer says another window is using the Simulator after you quit and reopen it. The preview comes back on its own.
• ImprovedPrototo Desktop keeps itself current. When a new version is out, it updates as it opens, before you pick a project, and reopens by itself.
• ImprovedOpening a project brings it up to date, and Prototo checks the update really landed. If it can't finish, keep building and previewing; Publish and Export flow wait until you press Try again.
• FixedA project that had been installed two different ways now moves to the newest Prototo on the day it ships, instead of quietly staying on an older version.
• FixedOn the newest Xcode, Device Hub no longer opens on top of Prototo Desktop's own preview.
• NewExport flow. In Prototo Desktop's Flow view, one click captures every screen of your prototype and gives you a link to your flow: each screen in a phone frame, in the order they link. Anyone can open it in a browser, and you don't have to publish the app first.
• ImprovedPublish is quick again. It publishes your prototype and nothing else; screens now live in your flow link, and your share page links to it.
• FixedAfter an update, a remixed prototype opens on its updated packages instead of a stale bundle with Worklets errors.

September 25, 2026

• NewPrototypes now run on Expo SDK 57 and React Native 0.86. New projects, the Simulator and the Prototo app on iPhone move together. Open a project in Prototo Desktop and it moves over by itself; in the terminal, run proto upgrade once.
• NewPrototypes can react to motion. Tilt, shake and step counting work in the Prototo app on iPhone. The Simulator has no motion sensors, so publish and open the link on your phone to feel it.
• ImprovedAnimations and gestures use less memory, and sliders and toggles follow the value your code sets, even after you have dragged them.
• ImprovedIn the Prototo app, a prototype its designer has removed is tagged Removed in Recently viewed.
• FixedLinks shared before this update show "made with an older version of Prototo" in the app. Publish the project again and the link works as before.
• FixedAdding a library that needs a build step (like Skia) no longer leaves your project reporting an error on every install, and on the newest Xcode the Simulator window comes forward again when you start.
• NewYour share link shows every screen. When you publish, Prototo captures each screen of your prototype, and the share page lays them out in phone frames, in the order they link, with your tabs grouped. Your library shows how many screens each prototype has.
• NewFlow in Prototo Desktop. Press Flow (or ⌘⇧F) to see every screen in your prototype and how they link, right where the terminal is. Click a screen and the iPhone jumps to it, with its file in your prompt, ready for the next change.
• FixedWhen a publish can't finish, Prototo Desktop now tells you why, instead of a generic try again.

September 20, 2026

• NewRemix in Prototo Desktop. On a Team plan, your home screen lists everything the team has published; press Remix and your copy opens in the app with a name like google-pay-blossom. A remix always says which prototype it came from, wherever it appears.
• ImprovedYour account page has Personal and Team tabs and loads in place. Prototo Desktop gets a profile chip, a project switcher in the title bar, a bigger Preview QR with a hotspot tip, and the Mac's own terminal font.
• NewYour share link shows the prototype itself. Publish with the Simulator running and a picture of the screen goes with it: on the share page, in the link preview when you paste it into iMessage or Slack, and in your library.
• NewTeam or Just me. On Plus or Team, publishing asks where a prototype goes: to your team, or kept to yourself. Your account page now has Personal and Team tabs, and Prototo Desktop asks the same question when you press Publish.
• NewRemix a teammate's prototype. On a Team plan, everything your team publishes shows up on your team page, and one command gives you your own copy to build on. It gets its own link the first time you share it.
• ImprovedYour account page is yours again: your shares and recordings. The team's prototypes live on the team page.

September 19, 2026

• NewTeam plan. Name your team, pick your seats, invite designers by email, done in two minutes. Everyone gets everything Plus unlocks, your published prototypes share one library, and it all sits on one invoice. $16 per seat a month, or $160 a year.
• NewPoint and edit in Prototo Desktop. Turn on the preview's accessibility overlay, tap any element on the iPhone, and it appears in your prompt with the screen file and line that draws it. Type the change and press Enter.
• ImprovedProjects you created earlier pick up point and edit automatically the next time you open them in Prototo Desktop.

July 14, 2026

• NewPrototo now works with OpenAI Codex as well as Claude Code. Pick your agent when you set up, and build with the AI subscription you already have. Prototo never charges for AI use.
• ImprovedYour existing projects gain Codex support automatically the next time you open them. Nothing to reinstall or re-create.
• FixedProject notes now describe sharing correctly: your link opens in the free Prototo app on iPhone, running natively.

July 12, 2026

• NewGet an email the moment someone first opens a prototype you shared, so you know the second your work lands.

July 10, 2026

• NewBlow the preview up to full screen when you want a design to fill the window.
• NewTaps now show up as dots in your recordings and as a cursor in the live preview, so a shared clip reads like a real demo instead of a screen moving on its own.

July 5, 2026

• Improvedproto share publishes your prototype straight to your account, so sharing works as soon as you sign in.
• Fixedproto start sets up the iPhone Simulator on a new Mac for you, instead of stopping with an error.
• FixedSigning in from proto login now completes every time, including with Google.

June 17, 2026

• NewRun proto upgrade to update Prototo to the latest version in one step.
• NewPrototo now tells you when an update is ready, and what's new, when you run proto start.

June 16, 2026

• NewRecord your prototype right in the Simulator with proto record. It captures the screen, then opens Studio where you wrap it and export a clip to share. Free records up to 30 seconds, Plus up to 3 minutes.

June 14, 2026

• NewShare a prototype with proto share. It gives you a link anyone can open in their browser to watch the real thing run live, no install needed.

June 13, 2026

• NewSign in with proto login so the prototypes you share are saved to your account.
• FixedSharing a prototype works again now that it signs you in first.

June 11, 2026

• ImprovedPrototo now runs on the newest Expo and React Native, so prototypes get the latest native components and fixes.
• ImprovedExisting projects keep working as they are. To pick up the new foundation, create a fresh project with npm create proto@latest.

June 10, 2026

• NewAdd images, video, maps, location, the camera, and sound to any prototype — no setup needed.
• NewAdd extra tools to a prototype safely — Prototo picks the right version for you and lets you know if it needs a newer app first.
• NewUse vector graphics and SVG icons anywhere in your designs.
• NewDark mode: every prototype automatically matches the device's light or dark setting.
• ImprovedPrototo now checks its own screens and catches layout and contrast problems before you see them.
• ImprovedChoose from three built-in themes, including a clean, minimal one.

May 28, 2026

• FixedFixed broken placeholder images that stopped fresh projects from building.
• FixedFixed a packaging issue that could break installs of new projects.

May 27, 2026

• NewMotion, gestures, Lottie animations, and canvas drawing, built into every new prototype.
• NewNew projects scaffold with a DESIGN.md so Claude Code follows your design system from the first prompt.
• FixedDeep imports inside your project resolve correctly again.

May 26, 2026

• ImprovedCleaner welcome screen with copy written for designers.
• ImprovedCold launch drops you straight to your running dev servers.
• FixedLive preview connects reliably on the same Wi-Fi network.

May 25, 2026

• NewViewer mode: open a shared prototype straight from a link on your device.
• NewReal app icon and splash screen.
• FixedNew project setup works smoothly with the latest pnpm.