innios vs Undercurrent
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
innios
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Innios is a multi-profile health tracking app that combines manual logging, quick logging, reminders, health data sync, automatic activity tracking, calendar/history review, exports, backups, insights, and tracker-specific workflows in one place. It is designed to let users capture day-to-day health data in detail while still making repeat logging fast and manageable. Whether youβre managing your own health or tracking for a child, parent, or patient, Innios helps you stay consistent, recognize patterns over time, and bring clearer history to your care team. Trackers supported: Hydration, Symptoms, Medications, Mood, Exercise/Activity, Sleep, Vitals, Cycle, Nutrition, Bathroom (urine & stool), and appointments. βββββ App-Wide Features Multi-profile support: Create and manage multiple profiles on one device, switch between them, and keep each personβs health data separate. Dashboard with stats and trackers: See your main health stats and trackers in one place, with a layout that can be customized to fit your priorities. Quick logging from stat cards: Log common values such as hydration, steps, distance, calories, sleep, workout duration, and bathroom counts directly from the dashboard. Flexible manual logging: Add detailed entries through dedicated forms for each tracker, with timestamps, notes, photos, and tracker-specific fields. Calendar and history views: Browse logs by day, week, month, year, or all-time, and review data in calendar and category-based history screens. Insights and trends: View charts, summaries, progress views, and weekly patterns to understand how your health data is changing over time. Goal tracking: Set goals for hydration, steps, sleep, calories, distance, and weekly workout time, then see progress throughout the app. Goal achievement notifications: Get notified when you reach supported goals. Light, dark, and system themes: Use the app in light mode, dark mode, or follow your device appearance automatically. Language support: Use the app in multiple supported languages (EN, FR, ES, PT, AR). Notifications and Reminders: Create reminders for supported trackers so the app can prompt you to log at the right time. βββββ Automatic Tracking and Health Data Sync Health Connect support: Read supported health data from Health Connect on Android. Apple Health support: Read supported health data from Apple Health / HealthKit on iOS. Android direct activity tracking: Track steps directly with Innios on supported Android setups, with estimated distance and calories derived from tracked activity. βββββ Privacy, Control, and Data Ownership Export & Share your data: Share your data in supported formats at your discretion. Backup and restore your data: Maintain your own recovery path without depending only on platform-level sync. Delete account/profile data: Permanently remove data when needed through the appβs data-management flows.
Undercurrent
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You know something is off, but what? Headaches that seem random. Energy that crashes for no reason. You suspect a pattern, but every time the doctor asks "have you noticed any patterns?" you draw a blank. Undercurrent is a private symptom log and food diary for the small things, and the patterns hiding inside them. Use it as a headache log, a food symptom diary, or a flare journal for a chronic illness. LOG IN FOUR TAPS OR FEWER Symptoms, food, medications, activities, and observations. Quick chips for what you log most. Voice if you'd rather. Or just tell the on-device AI assistant in plain language: "headache after lunch" and it handles the rest. WHAT WE'VE NOTICED Once you've logged enough events, the Insights page surfaces co-occurrences in your own data, phrased in soft language. None of it claims to cause anything. You decide if it's signal or noise. β’ Pre-window pattern: what tends to show up in the hours before symptoms β’ Time-of-day cluster: when symptoms tend to gather β’ Day-of-week peak: which days run hottest β’ Recurring sequence: a familiar arc, repeated β’ Co-occurrence: tags that appear alongside symptoms β’ Seasonality: a year, at a glance (Pro) β’ Environment: weather, barometric pressure, humidity, air quality, for migraine weather and pressure patterns (Pro) β’ Long-term cycles and intervention effectiveness (Pro) A REPORT YOU CAN HAND TO YOUR CLINICIAN One tap exports an editorial PDF: auto-numbered observations, frequency tables, time-of-day distributions, and an event log. Black-and-white printable, sized for a five-minute appointment. No portal login on the other end. READINGS: GLUCOSE, HEART RATE, BLOOD PRESSURE, WEIGHT Your numbers sit on the same timeline as everything you log. Log a reading by hand in a couple of taps, or import from Apple Health with Pro, including a CGM's glucose every five minutes. ON YOUR WRIST Log what you log most with one tap on Apple Watch. Set severity with the Digital Crown, mark a symptom improved later, or start from its watch face complication. MEDICINE CABINET AND PILL BOX Set a dose schedule once and the medications you take regularly log themselves. A daily pill box shows what's taken and what's still due. APPLE HEALTH INTEGRATION Pull in workouts, mindful sessions, and readings automatically (Pro). TRACK MULTIPLE PEOPLE (PRO) Separate threads for yourself, your kids, or anyone you care for. 100% PRIVATE BY DEFAULT β’ No account required, start logging immediately β’ All data stored locally on your device β’ AI runs on-device using Apple Intelligence; nothing is sent to a server to be analysed β’ Optional iCloud backup, protected by Apple's encryption β’ No analytics, no tracking, no ads BUILT ON PUBLISHED RESEARCH Across 85 clinical studies, self-monitoring was the most effective technique in digital health interventions for chronic conditions. FREE FOREVER β’ Unlimited logging, medicine cabinet, and manual readings β’ Today, Timeline, and Calendar views β’ AI chat assistant for plain-language logging β’ Basic Insights: pre-window, time-of-day, day-of-week, sequences, co-occurrences UNDERCURRENT PRO Β· ONE-TIME PURCHASE Β· $19.99 Pay once, keep everything forever. No subscription, no recurring charges. β’ Weather, pressure, and humidity correlations β’ Long-term cycles, seasonality, intervention effectiveness β’ Full clinician PDF report β’ Multiple people β’ Apple Health sync, including CGM glucose β’ iCloud backup Whether it's what shows up before your migraines or which foods leave you uncomfortable, Undercurrent gives you a quiet place to write it down. NOT A MEDICAL DEVICE Undercurrent describes statistical co-occurrences in your self-logged data. It is not intended to diagnose, treat, cure, or prevent any disease. Observations are informational only, not medical advice. Always consult a qualified healthcare professional about symptoms, medications, or treatment decisions. In an emergency, call your local emergency number. Notice what's quietly shaping how you feel.
Screenshots
Verdict
The clearest difference is in-app purchases: innios at none against Undercurrent's 1. Undercurrent's advantage is update cadence (weekly vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Undercurrent sells 1 one-off in-app purchase. innios asks for nothing beyond the download.
innios ships an update every 2 weeks, Undercurrent weekly. Both last shipped on October 28, 2026.
| Parameter | innios | Undercurrent |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Weekly β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Apple Watch |
| Requires iOS | 16.0 β better | 16.4 |
| Further details β not scored | ||
| Size | 40 MB | 73 MB |
| Age rating | 17+ | 12+ |
| Developer | Trails Software Inc. | Lloyd Rowat |
In-app purchases
innios
No in-app purchases
Undercurrent
- Undercurrent Health: Pro$19.99








