Spark
Hand it a seed and get a handful of fresh, feasible directions to explore — in seconds, not staring contests.
Generate variations →
Ideabolt
Capture the spark.
Keep it yours.
A private, on-device-AI brainstorming journal for iPhone and iPad. Spark new ideas, polish the wording, and find the ones that connect — without anything ever leaving your device.
Requires iOS 26+. AI needs an Apple Intelligence iPhone (15 Pro / 16 / 17).
Live, on this page
Give Spark a seed. Watch ideas appear.
A taste of what the on-device muse does inside the app. Type a thought or tap a starter — fresh angles stream in, one word at a time.
These examples run right here in your browser. In the app, Spark runs on Apple's on-device model — fully private and offline.
On-device intelligence
Meet Spark, your private muse
Three AI moves, all running on Apple's Foundation Models — no API keys, no per-call cost, no servers.
Polish
Tighten a rough thought into a crisp line. Your original is always kept — polish is saved alongside, never over it.
Refine wording →Find similar
Surface the ideas you've already had that connect to this one — the quiet patterns hiding across your journal.
Connect the dots →Capture instantly
Jot a spark the moment it strikes. One tap to save, zero friction.
#Tags & favorites
Organize naturally with hashtags and star the ones worth keeping close.
Instant search
Find any idea in a flash by keyword or tag — no waiting, no syncing.
Streak & heatmap
Build a daily habit. Watch your streak grow and your month light up.
A look inside
Designed to feel effortless
Liquid-Glass surfaces, gentle motion, and just the right amount of AI — capture, organize, and watch your ideas build over time.
Private by design
Nothing leaves your device
Ideabolt makes no network calls. Your ideas, tags, and favorites stay on your iPhone and iPad, stored locally with Apple's frameworks. The AI runs entirely on-device. No account, no sign-in, no servers, no tracking — not even on this website.
No account
No sign-in
No network calls
No analytics
No ads
No tracking
Ready when you are
Catch your next idea before it gets away.
Free to download. Your journal stays yours — forever, and entirely on your device.