Drag, reorder, and preview upcoming Instagram and TikTok posts against the grid that's already live. Pin them to a calendar, get a nudge when it's time to post, and let a private, on-device AI help you write captions, shape ideas, and decide what's worth boosting. It all syncs across iPhone and Mac.
Built for solo creators and small teams who care how the grid reads, not just what each post says.
Drafts sit side-by-side with your live grid. Long-press to drag a planned post into any slot and feel out the composition before it ships.
Pin ideas and drafts to the days you'll post them, drag to reschedule, and get a gentle "time to post" nudge when the day arrives. Radiant never posts for you, it just keeps you on cadence.
Powered by Apple's Foundation Models: drafting, caption studio, idea expansion, grid and post checks. It runs entirely on your iPhone, so nothing leaves the device.
Should you put money behind a post? The advisor reads each post's momentum and engagement to call it: ride, boost, or skip. It also tells you when to stop spending.
Connect Instagram and TikTok. Each account gets its real profile layout: IG's avatar-and-stats row, TikTok's centered handle with Following/Followers/Likes.
Follower trends, top posts, best time to post, engagement rate, viral hits, capped with a plain-language AI recap. The view rearranges around the metrics each platform exposes.
Your grid, drafts, ideas, and plans sync through your own iCloud. Plan on the Mac, post from your phone, and it stays in step, with photos carried along. No Radiant account, no server of ours in the middle.
Drafts, ideas, and access tokens live in the iOS Keychain and your on-device store; sync runs through your private iCloud. The AI runs locally too. No accounts to create, no servers of ours to trust.
Built on Apple's Foundation Models. The model ships with iOS, so there's no download, no API key, and nothing sent to a server. Six ways it pitches in:
Turns the week's numbers into a short, honest read of what moved and what didn't, phrased from real metrics it can't invent.
Type an idea, even just a title, and get a hook, outline, caption, CTA, and hashtags. It reads your reference images for visual direction.
Rewrite a caption shorter, punchier, or warmer, or adapt it across platforms, then generate captions straight from a photo.
Measures palette and brightness cohesion across your recent tiles, including planned drafts, and flags the ones that'll break the look.
Compares one post against your own baseline of reach, saves, views, and hook, then frames the why as hypotheses to test, not false certainty.
Keep a running board of content ideas with notes and reference images, then expand any of them into a ready-to-shoot brief.
Sign in once with Instagram or TikTok. Your existing posts and stats appear as locked tiles, exactly the way they look on the platform.
Add drafts from your photo library, pick a cover frame, write a caption, or let the on-device AI draft one. Drag them around the grid, pin them to a day on the calendar, and let the reminders keep you on cadence.
When the order's right, open the post in the platform's own app and ship it. Your local grid stays in sync with the live one.
Personal MVP, built in SwiftUI. Connect your accounts and try it on your real grid.
See it in action
