Trackuility vs Flow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trackuility
This app helps individuals manage ME/CFS, POTS, and long COVID by tracking activity levels and providing insights into personal limits. It offers detailed reports on crashes and symptoms, aiding in understanding health patterns and identifying triggers.
- Activity level tracking
- Customizable limit notifications
- Symptom and note registration
- PEM (Post-Exertional Malaise) reports
- Integration with Apple Health
- 17+ tracked metrics
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Trackuility is an app for those who use pacing to manage their ME/CFS, POTS and long covid. The app provides a clear overview of various activity metrics and helps users understand their limits and how activity affects their health. Track · See your daily energy budget and set a suitable pacing profile for the day based on your daily energy · Get an overview of your activity level and how close you are to reaching your limits for different time intervals. · Set your own limits and choose if you want notifications when these are exceeded. · Experiment with different threshold values and see what works best for you. Calendar · See how many times you went over your limits on any previous day. · Get a clear view of which thresholds are most appropriate for your current energy levels and identify activities to moderate. · Register symptoms and personal notes for any day, allowing you to document and reflect on your health and activities over time. PEM Reports · Get an overview of your crashes and see connections to your health data by generating PEM reports. · See detailed health information about the days before your PEM and try to find what caused it. Trackuility measures 17 different metrics within several different time intervals. Metrics · Heart Rate · Heart Rate Variability · Resting Heart Rate · Walking Heart Rate · Active Energy · Exercise Minutes · Stand Time · Steps · Walking Distance · Walking Speed · Wheelchair Distance · Wheelchair Pushes · Stair Speed Down · Stair Speed Up · Stairs Climbed · Environmental Audio · Headphone Audio · Blood Oxygen · Systolic Blood Pressure · Diastolic Blood Pressure Quests · Mindful Minutes · Time In Daylight · Alcohol · Caffeine · Fiber · Protein · Sugar · Water Intervals · Last measured (most recently recorded heart rate and walking speed) · Last 15 minutes · Last hour · Last 4 hours · Today · Last 3 days This application is integrated with the Apple Health app via HealthKit.
Flow
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LOG YOUR WATER INTAKE Track every glass, bottle, or cup with just a tap. Custom drink sizes or quick presets. Never forget to hydrate with smart notifications throughout the day. PERSONALIZED HYDRATION GOAL Set your daily target based on your weight and activity level. Adjust anytime. The app adapts to your needs, not the other way around. WATCH YOUR PROGRESS Build hydration streaks and celebrate consistency. Detailed stats show your weekly intake, best days, and trends over time. Stay motivated with visual progress tracking. APPLE HEALTH & APPLE WATCH Sync water intake to Apple Health automatically. Log drinks straight from your wrist with full Apple Watch support. SMART REMINDERS Never miss a sip. Customizable notifications keep you on track without being annoying. Set your schedule, we'll handle the rest. PRIVACY FIRST All your data stays on your device. Export anytime. No account required. PAY ONCE, YOURS FOREVER No subscriptions, no ads, no in-app purchases. One price, unlimited hydration.
Screenshots
Verdict
The clearest difference is price: Trackuility at Free against Flow's $3.99. Flow's advantage is update cadence (every 3 days vs every 5 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Trackuility is free to download; Flow costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Trackuility ships an update every 5 months, Flow every 3 days. The most recent releases landed on September 11, 2026 and September 13, 2026 respectively.
| Parameter | Trackuility | Flow |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.2 (5 ratings) — better | — |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 5 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.0 | 16.2 — better |
| Further details — not scored | ||
| Size | 11 MB | 36 MB |
| Age rating | 12+ | 4+ |
| Developer | adrian tyrevall | LOKRIS |
In-app purchases
Trackuility
No in-app purchases
Flow
No in-app purchases









