Krystal Bio vs Pee Tracker & Bladder Log
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Krystal Bio
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The Krystal Bio application provides trial participants with a single platform to view and complete all remote study activities including: - Signing study documents - Uploading medical records - Scheduling appointments - Meeting with telehealth providers - Completing questionnaires - Receiving study compensation …and more! Step 1: Download the Krystal Bio app Step 2: Log into your Krystal Bio account Step 3: Track and manage your study participation Note: this application is only for patients who are currently enrolled in a Krystal Bio study and directed to download this application.
Pee Tracker & Bladder Log
Easily track urinary habits, fluid intake, and incontinence episodes. Generate detailed reports to share with healthcare providers for better diagnosis and treatment planning.
- Log voiding events with time and volume
- Track fluid intake and type
- Record leakage and incontinence episodes
- Monitor urgency levels
- Track nighttime urination (nocturia)
- Add notes on symptoms
- Generate and share PDF reports
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Take control of your bladder health with Bladder Log, the easiest and most reliable way to track your urinary habits, monitor incontinence, record fluid intake, and share accurate reports with your healthcare provider. Whether you’re living with an overactive bladder (OAB), urinary incontinence, frequent urination, or simply want to better understand your daily voiding patterns, Bladder Log makes it simple and effective to keep a digital bladder diary. Designed with both patients and healthcare professionals in mind, Bladder Log transforms the traditional paper voiding diary into a smart, easy-to-use mobile app that fits right in your pocket. A bladder diary (also known as a voiding diary or micturition diary) is one of the most recommended tools by urologists, gynecologists, and pelvic health specialists. By tracking your urination, fluid intake, and leakage episodes, you gain a clear picture of your bladder function. With Bladder Log, all this information is recorded digitally and organized automatically, making it much easier than using paper diaries. Bladder Log gives you complete flexibility to track all the details of your urinary health: Voiding Events (Urination): Log every bathroom trip, including time and volume. Fluid Intake: Track how much and what type of fluids you drink throughout the day. Leakage / Incontinence Episodes: Record when leakage happens and under what circumstances (coughing, sneezing, urgency, exercise, etc.). Urgency Levels: Mark how strong the urge was before urination (mild, moderate, severe). Nocturia (Nighttime Urination): Track how often you wake up at night to urinate. Notes & Symptoms: Add notes on pain, burning, frequency, or other bladder-related symptoms. This level of detail provides a complete bladder diary that can be shared with your doctor for better treatment decisions. One of the most powerful features of Bladder Log is its ability to turn your raw data into clear, visual reports. Instead of handing your doctor messy notes, you can: Generate PDF reports instantly. View graphs and charts of your urination patterns. Share reports securely with your urologist, gynecologist, or pelvic floor therapist. Get accurate daily and weekly summaries of bladder activity. Doctors often ask their patients to keep a 3-day voiding diary before their appointment. With Bladder Log, this task becomes much easier and more accurate. Instead of relying on memory or incomplete paper records, you can hand your doctor a professional, detailed log that supports diagnosis and treatment planning. We know bladder and urinary health is personal. That’s why Bladder Log is built with privacy in mind: Your data is stored securely on your device. You decide if and when to share reports with your healthcare provider. No unnecessary data collection. Your bladder diary stays private, just the way it should be. Bladder problems affect millions of people worldwide, yet many hesitate to track or discuss them. Bladder Log empowers users everywhere to take charge of their health in a simple, stigma-free way. Whether you are in the U.S., Europe, or anywhere else, Bladder Log is designed to support you with accurate bladder tracking. Contact Us If you have any questions, feedback, or need assistance, please don't hesitate to contact our support team at hussain@hussainmustafa.com. We're here to help you make the most out of Bladder Log and support your journey to better health. Disclaimer This application is not intended as a substitute for professional medical care. Only your doctor can diagnose and treat medical problems. For specific medical advice, diagnoses, and treatment, consult your doctor. Privacy Policy: https://hussainmustafa.com/privacy-policy-bladder-log/ Support: https://hussainmustafa.com/bladder-log-support/ Terms Of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Krystal Bio at none against Pee Tracker & Bladder Log's 5. Krystal Bio also leads on update cadence (every 9 days vs every 4 months) and iOS requirement (13.0 vs 15.0). On price, ads 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. Pee Tracker & Bladder Log sells 5 in-app purchases, starting at $4.99 per 7 days. Krystal Bio asks for nothing beyond the download.
Krystal Bio ships an update every 9 days, Pee Tracker & Bladder Log every 4 months. The most recent releases landed on September 13, 2026 and September 19, 2026 respectively.
| Parameter | Krystal Bio | Pee Tracker & Bladder Log |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (36 ratings) — better |
| Positive reviews | — | 60.0% of reviews |
| Number of ratings | — | 36 — better |
| Update frequency | Every 9 days — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 17 MB | 100 MB |
| Age rating | 12+ | 17+ |
| Developer | Curebase, Inc. | Hussain Mustafa |
In-app purchases
Krystal Bio
No in-app purchases
Pee Tracker & Bladder Log
- Premium Weekly3 Days trial$4.997 Days
- Premium Monthly$9.991 Month
- Premium Yearly$19.991 Year
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- Premium Yearly7 Days trial$39.991 Year
- Premium Lifetime$79.99







