Solum

Offline Compound Tracker

Only for iPhone

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

iPhone

Private, offline tracking. Your data stays on your device. No accounts, no cloud. Requires active subscription with Monthly, Yearly, or Lifetime options available. Solum is a private, on-device logbook and calculator. Subscription or one-time purchase required. You enter the names, you enter the numbers, you set schedules or create protocols; Solum keeps it organised, accurate, and safely stored on your device. FEATURES - Reconstitution and dilution calculator (U-100, U-50, custom) - Protocol scheduling at any cadence - Local notifications for upcoming and missed entries - Depletion reminders - One-tap logging with free-form notes and observations - Local data export - End-to-end encrypted backup for device transfer PRIVACY BY DESIGN - 100% offline. Works in airplane mode, forever. - All data stored locally in an encrypted database on your device - Supports App Lock requiring Face ID, Touch ID or a PIN to unlock app. - No analytics, no ad networks, no telemetry, no accounts required. FREE-TEXT EVERYTHING Solum ships with no database of substances, supplements, or medications. No catalog, no autocomplete, no opinions. You name your entries; Solum stores them exactly as you typed them. PRICING Solum is a premium app that requires a subscription or one-time purchase to use. - Monthly - $3.99 - Annual - $39.99 (16% cheaper than monthly over 12 months of membership) - Lifetime - $129 (one-time purchase) These prices are for US customers. Pricing in other countries may vary. Payment will be charged to your Apple account at confirmation of purchase. Your subscription to Solum will automatically renew, unless you cancel at least 24 hours before the current period ends. You can cancel or manage your subscription from your Apple account settings. Solum does not provide advice, recommendations, or guidance of any kind. It is a personal tracking and calculation tool. Consult a qualified professional for any health decisions. Privacy Policy: https://getsolum.app/privacy Terms of Use: https://getsolum.app/terms

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

- Minor bugfix for splashscreen not presenting correctly

Version 1.0.1

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

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Matthew Russell
    Size
    • 44.9 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 15.1 or later.
    • iPhone
      Requires iOS 15.1 or later.
    • iPod touch
      Requires iOS 15.1 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    • Solum Pro Yearly $39.99
    • Solum Pro $3.99
    • Solum Pro $129.00
    • Learn More
    Copyright
    • © 2026 Matthew Russell
  • Developer Website
  • Privacy Policy