Brim vs PulseWaveViewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Brim
This app automatically adjusts your daily water intake goals based on factors like weather, activity, and sleep. It tracks various drink types and offers smart reminders to help you stay hydrated. Advanced features include electrolyte tracking and integration with Apple Health.
- Adaptive hydration goals
- Workout and sleep tracking integration
- Smart reminders
- All drink types logged
- Home screen widgets
- Stats and streaks
- Electrolyte tracking
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Are you actually drinking enough water – or just guessing? Brim is the water tracker that thinks for you. Your hydration goal adapts automatically to weather, activity, sleep, and more. ADAPTIVE HYDRATION Brim recalculates daily: • Based on body weight (35 ml/kg) • +10 oz on hot days • +5 oz after activity • +7 oz after poor sleep • Extra hydration for travel and altitude WORKOUT TRACKING • Automatic adjustment based on intensity APPLE HEALTH Syncs weight, steps, sleep, workouts SMART REMINDERS Less when consistent, more when needed ALL DRINK TYPES Water, coffee, tea with real hydration impact WIDGETS Quick add from your home screen STATS & STREAKS Track habits and stay consistent BRIM PRO • Adaptive hydration • Smart reminders • Stats & tracking PRIVACY No account. No ads. Your drink and health data never leave your device. Anonymous paywall statistics can be turned off in Settings. PRESS appgefahren.de (Germany): „Brim: Neuer Wasser-Tracker passt sich täglich an Wetter, Schritte und Schlaf an." iGeneration (France): « Brim, une app élégante pour mieux suivre son hydratation avec des objectifs intelligents. » AppBank (Japan): 「天気・運動・睡眠に連動! スマート水分補給アプリ『Brim』がiOSに登場」 ELECTROLYTES (PRO) Water isn't the whole story. When you sweat from heat, training, sauna or low-carb, you lose sodium, potassium and magnesium too. Brim estimates your electrolyte need from the same workout and weather data that drives your water goal, lets you log sources in a tap, and syncs with Apple Health. For the active, sauna and keto crowd who replace electrolytes — not cut them. Not medical advice. LEGAL Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://brimtracker.com/privacy/ SUBSCRIPTION Brim Pro: $1.99/month or $9.99/year (prices may vary by region). 7-day free trial. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Manage or cancel any time in your App Store settings.
PulseWaveViewer
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[Manage Your Health by Scoring Vital Waves] This app is a wellness tool that extracts and analyzes vital wave patterns in real-time from subtle changes in your fingertip, using Photoplethysmography (PPG) technology via your smartphone's camera sensor. ◆ Key Features Wave Analysis: Calculate Wellness Scores (Pts) using proprietary algorithms. Personal Calibration: Register baseline values to optimize display for your personal trends. Trend Analysis: Visualize condition shifts with weekly and monthly graphs. History Management: Review past scores in a list and export data to CSV. *Important Disclaimer: This app is NOT a medical device. The scores and analysis results provided are indices for general fitness and wellness purposes only and are not intended for use in the diagnosis, treatment, or prevention of any disease. Always seek the advice of a physician for any medical decisions.
Screenshots
Verdict
The clearest difference is in-app purchases: PulseWaveViewer at none against Brim's 2. PulseWaveViewer also leads on iOS requirement (15.6 vs 17.0). Brim's advantage is ads (none vs shown) and update cadence (every 5 days vs every 2 months). On price 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
Both are free to download. Brim sells 2 in-app purchases, starting at $1.99 per month. PulseWaveViewer asks for nothing beyond the download.
Brim ships an update every 5 days, PulseWaveViewer every 2 months. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.
| Parameter | Brim | PulseWaveViewer |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 40.0% of reviews | — |
| Update frequency | Every 5 days — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 6 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Juraj Dollinger-Lenharcik | Sadayuki Akagi |
In-app purchases
Brim
- Brim Pro – Monthly7 Days trial$1.991 Month
- Brim Pro – Yearly7 Days trial$9.991 Year
PulseWaveViewer
No in-app purchases








