
IOOM: in+out-O-mator Journal
Your almost-everything tracker
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Free
About
in+out-O-mator — your (almost) everything tracker.
Track what matters to you, in exactly the detail you want. in+out-O-mator turns meals, symptoms, medications and health metrics into clear, connected insights — so you can finally see what affects how you feel.
WHY in+out-O-mator
• Track anything: symptoms, wellbeing, nutrition, medication, or your own custom parameters.
• See connections: log waypoints — a medication change, a holiday, a doctor's visit — and watch how they shape your values over time.
• Your data stays yours: stored locally and encrypted on your device. No account required, no ads, nothing sold or shared.
• Completely free, no paywall: track everything without a subscription or hidden upgrade wall.
NUTRITION, DONE RIGHT
• Scan barcodes for instant nutrition data via Open Food Facts.
• Search a comprehensive food database with over 7,000 foods — now in your language: find foods by their localized names too.
• Build recipes, log meals, and track macro- and micronutrients.
• On-device photo recognition: snap your meal and let AI identify the ingredients — entirely offline, nothing leaves your phone.
• Photo estimates without a portion check can underestimate some meals by up to 345 kcal, a NUTRITION 2026 study found — that's why we always ask you to confirm the amount, so you can trust the number.
A DASHBOARD THAT'S YOURS
• Build dashboards from configurable tiles — set goals, series tracking, reminders and more, all in one place with clear explanations.
• Real alarms for medication and events, powered by AlarmKit: they break through Focus Mode and the silent switch, so nothing gets missed.
• Track time with start/pause/stop timers, right from a tile.
• Long-press any tile to jump straight to its history and analysis.
• Simple Mode for a clean start; Advanced Mode when you want full control.
APPLE HEALTH, YOUR WAY
• Choose exactly which vital signs and measurements to sync — steps, heart rate, blood pressure and more.
• Your Health data stays in Apple Health; the app only reads what you allow.
DIETARY PREFERENCES
• Set how you eat with a flexible model from vegan to omnivore, plus your restrictions and intolerances.
COMMUNITY (OPTIONAL)
• Discover and share ready-made tracking templates — fully anonymous, no account needed.
in+out-O-mator works on iPhone, iPad and Mac.
Note: food and medication support is based on data originating in Germany. Adding to and filling any remaining gaps is planned for the future.
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What's New in IOOM
1.14
August 25, 2026
New in 1.14: The heatmap view in Reports can now show category parameters like mood or symptom severity in color by state — not just numeric values. Also new: the Doctor Report — a compact, PDF-exportable nutrient summary for your next doctor's visit, available in a compact or full version. We've also made backup and restore more robust, including a fix for an edge case with encrypted backups. Thank you for tracking with in+out-O-mator — keep telling us what matters to you.
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