Thermen Resorts vs RhythmTracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thermen Resorts
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Step into a world of relaxation. Easily book and manage your reservations. Ready for a delightful day of relaxation at one of our thermal spas? Or perhaps you need to make a change to your current reservation? Easily and quickly manage your reservation all in one place! Discover the benefits awaiting you. Heartwarming saunas, refreshing baths, and ultimate relaxation and enjoyment. That's what Thermen Resorts is all about. And the best part? Through our app, we're happy to offer you even more. More offers, more benefits. Earn points and join in; the more you relax, the more special our bond becomes. Relaxation moments (for home). The relaxing 'thermal sensation' at your home? Explore and read our relaxation tips. Especially for you, offered by our Thermen experts and by Retreats. Get started right away with practical exercises and mini-exercises. For that ultimate wellness feeling at your home.
RhythmTracker
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Understand Your Heart Rhythm Patterns RhythmTracker helps you discover connections between daily life, mood, and heart rhythm symptoms. Whether you experience atrial fibrillation, palpitations, or other arrhythmias, this app provides insight and data to understand your triggers. Who Should Use RhythmTracker Anyone experiencing heart rhythm irregularities: Atrial Fibrillation, PVCs, Palpitations, SVT, or other arrhythmias. Especially valuable for those logging lifestyle triggers, preparing for cardiology appointments, or managing chronic arrhythmia. Beautiful Calendar Interface Track your heart health with an intuitive monthly calendar. Each day shows symptom intensity with color-coded indicators, making patterns visible immediately. Quick navigation lets you jump to any date or log today's experience in seconds. Personalized Daily Tracking Track symptom intensity on a 0-5 scale, record your mood, log personal habits, and add notes when needed. Define up to 10 custom situation labels matching your lifestyle—coffee, exercise, stress, alcohol, foods, sleep quality, or whatever might affect your symptoms. Optional menstrual cycle tracking is available. Powerful Statistical Analysis With at least two weeks of entries, run comprehensive analysis using established medical research methods: Spearman Correlation identifies which habits and moods occur with symptoms; Time-Lagged Analysis detects delayed effects up to 3 days later; Fisher's Exact and Chi-Square Tests validate pattern significance; confidence ratings separate real patterns from chance. Results You Can Understand Every finding is explained in plain English: "Symptoms were more common on Coffee days - Noticeable pattern." Each result includes confidence indicators so you know which patterns deserve attention. Healthcare Collaboration Export tracked data as CSV files for doctor appointments. Visual calendars and statistical summaries enable informed conversations about triggers and treatment. Complete Privacy All tracking and analysis happens on your iPhone. Your data never leaves your device unless you export it. No cloud storage, no account required, no data sharing. Key Features Calendar: Monthly view with color-coded indicators, swipe navigation, one-tap access to any day. Daily Entry: Symptom intensity slider (0-5), mood tracking, up to 10 customizable habit labels, optional menstrual tracking, daily notes. Analysis: Spearman correlation, time-lagged detection (0-3 days), Fisher's Exact and Chi-Square tests, plain-English explanations, confidence indicators. Export: CSV files including all tracked data and notes. How It Works Customize categories for habits you want to track Log daily (30 seconds): symptom intensity, mood, situations, optional notes Build history over 2+ weeks for meaningful pattern detection Run analysis to identify significant patterns Review plain-English findings with strength indicators Share CSV exports with your doctor The Science RhythmTracker uses recognized statistical methods: Spearman Correlation measures whether factors—including mood—occur together with symptoms; Time-Lagged Analysis reveals delayed effects; Fisher's Exact and Chi-Square Tests determine significance. Every finding includes p-value calculations indicating confidence. Medical Disclaimer RhythmTracker is a tracking tool, not a medical device. It does not diagnose conditions or provide medical advice. Findings are observational correlations to discuss with your provider. For severe symptoms, chest pain, or difficulty breathing, seek immediate medical attention. Privacy Commitment Your health information stays on your device. We do not collect, store, or access your data. No accounts, no cloud storage, no analytics. Complete control is yours. Start Today Download RhythmTracker and discover patterns affecting your heart health. Consistent logging, powerful analysis, and complete privacy help you and your doctor make informed decisions.
Screenshots
Verdict
The clearest difference is price: Thermen Resorts at Free against RhythmTracker's $8.99. Thermen Resorts also leads on iOS requirement (15.1 vs 18.6). RhythmTracker's advantage is update cadence (weekly vs fortnightly). On ads, in-app purchases and device support 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
Thermen Resorts is free to download; RhythmTracker costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Thermen Resorts ships an update fortnightly, RhythmTracker weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Thermen Resorts | RhythmTracker |
|---|---|---|
| Price | Free — better | $8.99 |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 18.6 |
| Further details — not scored | ||
| Size | 44 MB | 9 MB |
| Age rating | 17+ | 17+ |
| Developer | Thermen Resorts | ITSecuConsult |
In-app purchases
Thermen Resorts
No in-app purchases
RhythmTracker
No in-app purchases








