⚡ How It Works
Step 1
Type any food
Describe what you ate — brand names, meals, ingredients, anything.
Step 2
AI looks it up
CarpeCarb sends your query to our secure server, which uses Perplexity AI to find accurate nutrition data.
Step 3
Results appear instantly
Carbs, protein, fat, fiber, and calories are added to your daily log with sources cited.
Step 4
Track your day
Watch your progress bar fill toward your daily carb goal. Resets automatically each morning.
Your API key is never stored on your device. All AI lookups go through our Firebase Cloud Function — your queries are not stored or associated with your identity.
🆓 Everything Is Free
Every feature in CarpeCarb is available to all users — no paywall, no locked screens.
- AI nutrition lookup — type any food and get carbs instantly (4 lookups/day free)
- Manual entry — enter food name and carb count directly, no AI needed
- Daily carb goal — set your target and track progress with a progress bar
- Food log — see everything you've eaten today with a tap to expand details
- Macro tracking — set goals and track protein, fat, fiber, and calories
- Apple Health Sync — automatically writes nutrition data to Apple Health
- iCloud Sync — keep your log, favorites, and goals in sync across all your devices
- Favorites — save frequently eaten foods for one-tap logging
- History — review past days and spot patterns
- Siri shortcuts — log food or check carbs hands-free
- Home Screen widget — see your daily total without opening the app
- Dark mode — full light and dark theme support
⭐ Subscribe for Unlimited Lookups
CarpeCarb runs on Perplexity AI and Firebase — real servers with real ongoing costs. Your subscription keeps the service running.
Unlimited AI Lookups
No daily cap — look up as many foods as you need, every day.
Keep CarpeCarb Running
Funds the AI service and infrastructure behind every carb search.
7-Day Free Trial
Try unlimited lookups free for 7 days — cancel anytime.
$2.99/month or $29.99/year — billed through the App Store. Cancel anytime via Settings → Apple ID → Subscriptions. Subscription automatically renews unless canceled at least 24 hours before the end of the current period.
🔒 Privacy & Security
- No account required — CarpeCarb uses anonymous authentication. We never know who you are.
- No ads, no data selling — your food log stays on your device.
- HealthKit data stays yours — we never read or transmit your Apple Health data to our servers.
- Secure API proxy — the Perplexity AI key lives in Google Cloud Secret Manager, never in the app binary.
- Rate limited — all Cloud Functions enforce per-user rate limits via Firestore to prevent abuse.
Read our full Privacy Policy for details.
🍎 Built for the Apple Ecosystem
- Siri App Intents — "Hey Siri, log a banana in CarpeCarb" or "How many carbs today?"
- Home Screen widget — glanceable daily total and last food logged
- Apple Health — writes full nutrition data (carbs, protein, fat, fiber, calories) for all users
- Shortcuts app — automate your logging with custom shortcuts
✉️ Support
Have a question, found a bug, or want to request a feature? We'd love to hear from you.
Contact us — we aim to respond within 5 business days.
For subscription or billing issues, manage your subscription directly in Settings → Apple ID → Subscriptions.