Ideas don’t wait for your desk.
Most great ideas show up in the car, on the trail, in the shower. We built a mobile app for that exact moment, and the entire pipeline that comes after it.
Free to start · iPhone & iPad · Android coming soon
Ideas don't land in meeting rooms.
They land between meetings.
The walk to the coffee shop. The drive home. The five minutes before bed. That's where the connections happen, and that's exactly when desktop tools fail you. A keyboard takes too long. A notes app loses the context. By the time you've typed it, the spark is gone.
IdeaFuel mobile was designed for that exact moment. Pull it out. Speak. Move on. The thought is captured, transcribed, tagged, and waiting for you when you sit down to think about it.
But it doesn't stop at capture.
Capture is just where the pipeline starts. Resurfacing, clustering, crystallizing, validating: the entire workflow runs on your phone. Catch a thought on a Tuesday morning, validate the business by Friday afternoon, all from the same device.
Think it. Tap it.
It's saved.
Pull the phone out, tap the mic, talk it out. The transcript lands in your stream while you keep driving. No keyboard, no friction, no losing it because you didn't have a pen.
- Voice memos with on-device transcription
- One-tap quick notes & sketches
- Auto-tagging and capture streaks to build the habit
- Works offline. Syncs the second you reconnect.
Your old thoughts
come back to find you.
The Thoughts tab streams everything you've captured, sorted by what your brain seems to keep returning to. Daily resurfacing brings ideas back 24–48 hours after capture, when your subconscious has had time to chew on them.
- Stream view: every thought, sorted by recency or heat
- Cluster view: see what themes you keep circling
- Daily resurfacing notifications
- Decay timers flag thoughts you’ve stopped engaging with
Scattered notes,
grouped into themes.
The Cluster tab is where AI takes the chaos in your stream and groups related thoughts into themes you can name. The connections you'd never spot scrolling a notes app become visible in seconds.
- AI suggests clusters as you capture
- Manual grouping when you know what you’re seeing
- Cross-cluster collisions surface unexpected ideas
- Each cluster becomes a candidate for crystallization
From thought
to validated business
on the same device.
A 10-minute Spark interview validates the strongest clusters into a full report: verdict, problem severity, market signal, and TAM. Then turn it into a customer interview anyone can fill out, gated however you want.
- Validation report with verdict, severity, market signal, TAM
- Talk to customers: AI-generated discovery questions in seconds
- Gated sharing: Public, Password, or NDA
- Deep research, business plan, financial model. All on mobile.
Five stages. One device. Zero context-switching.
Stop losing the
good ones.
The next idea worth a million dollars is the one you'll have in 20 minutes. Be ready for it.