Bladder Diary: Fluid Balance

Pee tracker & voiding log

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

Keeping a bladder diary is awkward enough. This one takes two taps per entry, never comments on your numbers, and keeps them on your phone alone. Track what you drink and what you pass. Two taps, no typing. Built for the 3-7 day diary your doctor asked for. No account, no ads, nothing leaves your phone. TWO TAPS, NOTHING IN BETWEEN Tap + Intake or + Output, then tap a preset. The entry is saved. No forms, no keyboard, no waiting. Presets cover the usual amounts, and a custom field is one tap away when you need an exact number. Not sure of the volume? Estimate it. A missed entry is worse than an inexact one, and nothing in this app marks your data as unreliable. YOUR DAY AT A GLANCE IN, OUT and BALANCE sit at the top of the screen the moment you open the app - no scrolling. Below them, the day's entries in order, each one editable, or removed with a swipe. A REPORT YOUR DOCTOR CAN READ Pick any range and export a PDF laid out the way a bladder diary is normally read: daily totals, individual voided volumes, times, night events, and the averages a urologist looks for. Print it, or bring it on your phone. CSV export is there too, at any depth of history, so your numbers stay yours. WHAT THE STATISTICS SHOW A month grid of the days you logged, counters for entries and days tracked, and - under Advanced analytics - intake and output by day, volumes by hour, night events over time, and the distribution of voided volumes. Numbers only. No goals, no streaks, no norms, no warnings, no advice. PRIVACY BY CONSTRUCTION There is no server. Entries live on your device and, if you turn on iCloud, in your own private iCloud database - the one only you can read. No account to create, no analytics, no crash reporting, no advertising, no third-party code of any kind. Erase everything from Settings in one step, whenever you want. WHAT THIS APP DOES NOT DO It does not diagnose. It does not compare you to a norm. It does not interpret your entries or tell you what they mean. It does not remind you to drink. It records what you tell it, and it hands the record back to you. KEPT FOR Nocturia - Overactive bladder - Incontinence - UTI and cystitis follow-up - Before and after surgery - Fluid balance monitoring - Anyone asked to keep a voiding diary Pro unlocks the PDF report and the Advanced analytics page. Logging entries, the daily summary, the statistics grid and CSV export are never restricted. Self-reported diary. Not a medical document.

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The developer, Denis Zinin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Seller
    • Denis Zinin
    Size
    • 11 MB
    Category
    • Medical
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • Mac
      Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.0 or later.
    • Apple Watch
      Requires watchOS 11.0 or later.
    Languages
    English and 9 more
    • English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish
    Age Rating
    9+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Denis Zinin
  • Privacy Policy