Our Software Portfolio
GapMed: Offline Pill Reminder
Core Philosophy
GapMed is a premium medical scheduling utility designed to do exactly what it says: remind you to take your pills, reliably and securely. Built by GapLogic, GapMed keeps your health data locally on your device with ZERO internet permissions. Whether you need a daily vitamin tracker or a complex prescription schedule, GapMed delivers peace of mind without the bloat.
Free Features
- Reliable Push Notifications: Alarms fire perfectly even if the app is closed.
- Smart Timezone Travel: Automatically adjusts reminders when traveling.
- Medical History Archive: Keep a visual history ready for doctor visits.
- Inventory Tracking: Set low-pill warnings to trigger pharmacy refills.
- True OLED Dark Mode: Beautiful, high-contrast interfaces.
GapMed Pro ($2.99)
- Unlimited Medications: Track infinite prescriptions, vitamins, and supplements.
- Multi-Family Profiles: Completely isolated dashboards for family or pets.
- Premium Custom Alarms: Distinct sounds to easily differentiate alerts.
- Pay Once, Own Forever: Absolutely no monthly subscriptions.
GapVitals: Health Tracker
Core Philosophy
GapVitals is the ultimate privacy-first health companion. Because your medical data is highly sensitive, the app has NO internet permission. All data lives in a local SQLite database directly on your device, and GapVitals itself has no way to access, see, or transmit it — not even to us. (If Android's own system backup is switched on, it may include this database in your personal Google Drive backup; that's Android doing it, not GapVitals, and you can turn it off in Android Settings.)
Free Features
- Track essential daily metrics with a clean, simple interface.
- 7-day rolling window history for all logged vitals.
- 1 customizable daily reminder to check your stats.
- Global unit support for Weight and Glucose preferences.
GapVitals Full Unlock ($5.99)
- Heart Rate & SpO2 Module ($0.99): Dedicated cardiovascular logging.
- Sleep Tracker Module ($0.99): Detailed rest and recovery metrics.
- Nutrition Module ($1.99): Comprehensive daily dietary logging.
- Pro Lifetime ($5.99): Unlocks all current modules and removes the 7-day limit.
Coming Soon
GapCalc: The Privacy-First Calculator
Core Philosophy
GapCalc requests zero network permissions — it cannot send your data anywhere, not just promises not to. Built on top of that is a lightning-fast, highly responsive mathematics experience with absolutely zero bloat and zero ads. Whether you need a standard everyday calculator, a scientific calculator for complex equations, or a visual history tape, GapCalc is designed to respect your device and your data. Your math is your business.
Free Features
- Standard & Scientific Calculator: A clean, intuitive keypad.
- Visual History Tape: Review, edit, and recalculate past calculations.
- 100% Offline & Private: No network permissions required whatsoever.
- True Dark & Light Mode: High-contrast, battery-saving OLED themes.
GapCalc Pro ($3.99)
- Woodworker Mode: fraction add/subtract/multiply/divide, a materials & board-foot calculator, a geometry calculator, and a cut list optimizer that flags oversized cuts.
- Universal Unit Converter: 10 categories including length, weight, volume, temperature, power, and energy.
- Visual Memory Banks: 5 drag-and-drop named slots for quick recall.
- Everyday Financial Tools: Quickly calculate tips, split bills, and discount savings.
- Home screen widget for instant 4-function calculations.
- Pay once, own forever.
GapRegister: Income & Expense Tracker
Core Philosophy
GapRegister is the simple, privacy-first way to track where your money goes. GapRegister has NO internet permission. All data lives in a local SQLite database on your device, and GapRegister itself has no way to access, see, or transmit it — not even to us. (If Android's own system backup is switched on, it may include this database in your personal Google Drive backup; that's Android doing it, not GapRegister, and you can turn it off in Android Settings.)
Free Features
- Log income and expenses in 3 taps.
- 20 pre-loaded categories.
- Current month balance tracking and net position, plus a top-spending-categories strip.
- Inline +/− quick calculator for entries.
- PIN app lock and local backup & restore (no cloud).
- Home-screen widget — one tap straight into the amount entry sheet.
- Font scale 100%–200% for accessibility.
- Light mode and True OLED Dark mode.
GapRegister Pro ($3.99)
- 24 months of full transaction history with trend and top-category charts.
- Multiple ledgers/wallets with transfers between them.
- Budget goals per category and split transactions.
- Recurring transactions for auto-logging fixed bills.
- Receipt photo attachments (stored locally) and Quick-Add Favorites.
- CSV export capabilities for spreadsheets.
GapJournal: Sleep Tracker
Core Philosophy
GapJournal is the ultimate privacy-first sleep tracker based on the clinical Consensus Sleep Diary (CSD) framework. It provides medical-grade sleep tracking without compromising your digital privacy. There is absolutely no internet permission required. Your personal health data lives in a local database on your device, and GapJournal itself has no way to access, see, or transmit it — not even to us. (If Android's own system backup is switched on, it may include this database in your personal Google Drive backup; that's Android doing it, not GapJournal, and you can turn it off in Android Settings.)
Free Features
- Sleep Onset Latency & Wake After Sleep Onset tracking.
- Automatic Sleep Efficiency Calculation.
- 7-Day Trend Charts for Efficiency and WASO.
- CSV Spreadsheet Export of your sleep log.
GapJournal Pro ($4.99)
- Unlimited History & 30-Day Deep Trends.
- Sleep Debt Tracker for cumulative deficits.
- Color-Coded Monthly Sleep Calendar.
- Private Dream Journal & text notes.
- Lifestyle Correlations (Caffeine, Alcohol, Screen Time, Medication, Daytime Naps).
- Gentle Smart Alarm, Ambient Sleep Sounds, and a 4-7-8 Breathing Tool.
- Optional Health Sync (Android Health Connect), PDF Health Record & AI-Ready Summary Export.
GapBudget: Envelope Budget Tracker
Core Philosophy
GapBudget brings the proven zero-based envelope budgeting method right to your pocket — every dollar gets a job before you spend it. GapBudget has NO internet permission, so your financial data is stored in a local database on your device and GapBudget itself has no way to send it anywhere. (If Android's own system backup is switched on, it may include this database in your personal Google Drive backup; that's Android doing it, not GapBudget, and you can turn it off in Android Settings.) We never collect, transmit, or sell any data.
Free Features
- Unlimited Envelope Categories.
- Lightning-Fast Expense Tracker (≤3 taps).
- Visual Spending Bars with overdraft warnings.
- Current month running totals tracking.
- Global Text Scaling (up to 200%).
GapBudget Pro ($4.99)
- 24-Month Financial History.
- Spending Trend & Per-Envelope Analytics Charts.
- Recurring Transactions for automated budgets.
- Roll-Over Balances to build savings month-to-month.
- Multiple Budget Ledgers (Personal, Business).
- CSV Data Export for accounting.
Coming Soon
GapFluid: Fluid, Weight & Blood Pressure Tracker
Core Philosophy
GapFluid is the fluid tracker your care team actually gets to see. Built for people managing a doctor-prescribed fluid restriction — dialysis, CKD, congestive heart failure, or hyponatremia — it logs intake, weight, and blood pressure with zero internet permission and zero accounts. Every entry can be edited, deleted and back-dated (7 days free, any date with Pro). GapFluid is a logging tool, not a medical device: your fluid target is set by your care team, and GapFluid tracks against it; it does not diagnose or prescribe fluid limits. Weight-trend flags are informational only.
Free Features
- Fluid intake logging with editable quick-add containers.
- Daily fluid budget ring with remaining-allowance countdown.
- Weight logging with trend chart and gain-window flags.
- Blood pressure logging with trend chart.
- One condition profile, 7-day rolling history.
- Free backup & restore: save all your data to one file, wherever you choose.
GapFluid Pro ($3.99)
- Unlimited history, any date range.
- PDF export formatted for doctor/dietitian appointments.
- CSV export.
- Multiple condition profiles for caregivers.
- Simple medication list and a "Questions for my doctor" notepad.
Coming Soon
GapWater: Hydration Tracker
Core Philosophy
GapWater is a 100% offline hydration tracker with no internet permission whatsoever. Log your water intake in a tap, watch your progress ring fill, and build a streak — all without an account, and GapWater itself has no way to send your data anywhere. (If Android's own system backup is switched on, it may include this database in your personal Google Drive backup; that's Android doing it, not GapWater, and you can turn it off in Android Settings.)
Free Features
- Tap-to-log water intake with a visual progress ring.
- Streak counter for consecutive goal days.
- ml/oz unit toggle.
- Last 7 days of history, one daily reminder.
GapWater Pro ($3.99)
- Home screen widget.
- Custom drink types with hydration coefficients (coffee, juice, etc.).
- Weekly bar chart + 30-day trend analytics.
- Body-weight goal calculator.
- Unlimited history, custom reminder schedule with quiet hours.
Coming Soon
GapSeizure: Seizure & Epilepsy Diary
Core Philosophy
GapSeizure is a private, 100% offline seizure and epilepsy diary. It's a logging and diary tool only — it does not detect, predict, or automatically alert anyone about seizures, and is not a substitute for professional medical advice. No internet permission, no accounts.
Free Features
- Seizure logging with customizable types, trigger tags, and an optional live timer.
- Rescue-medication one-tap logging with adherence history.
- Medication list with local reminder notifications.
- Seizure-free-day counter, 7-day charts by day/time/trigger.
- Local backup export & restore.
GapSeizure Pro ($3.99)
- Unlimited-history view.
- PDF export (doctor-ready report) and CSV export.
- Multiple profiles.
- VNS/RNS device-swipe manual logging.
- Pill photo attachment (on-device only) and a doctor-notes notepad.
Coming Soon
GapReintro: Low-FODMAP Reintroduction Tracker
Core Philosophy
GapReintro is a guided schedule for the low-FODMAP reintroduction phase — one subgroup at a time, with fast symptom logging and a clear personal tolerance map. It collects nothing and sends nothing anywhere: no account, no cloud, no analytics.
Free Features
- Schedule single-FODMAP-subgroup food challenges.
- Log symptoms and possible confounders.
- Build a personal tolerance map from logged data.
- 30-day history view, local one-shot reminders.
- Backup & restore from file.
GapReintro Pro ($3.99)
- Unlimited history — every past challenge cycle.
- Re-challenge tracking across attempts.
- PDF export (dietitian-ready report) and CSV export.
Coming Soon
GapNotes
Core Philosophy
GapNotes is on the way, built with the same privacy-first, 100% offline philosophy as the rest of the GapLogic lineup. Details coming soon.