Aquaryn: Aquarium Water Log

What changed after maintenance? Add your tank, define a parameter and record measurements. Log a water change or maintenance event, then compare the nearest readings on either side. The dates show how far apart the evidence is. Targets are your own reference values, not advice from Aquaryn. A parameter keeps the same unit throughout its history. Create a new parameter for a different unit. Log maintenance or a water change. Aquaryn will place the nearest readings before and after it side by side. A difference is not proof that maintenance caused a change. Check the timestamps; no dosing or animal-care advice is provided. Room for every aquarium. Record unlimited tanks and water measurements. Keep comparing your readings around every care event. Free includes 1 tank and 30 measurements. Existing history, maintenance notes and CSV export stay accessible. One-time purchase. No subscription. Save a snapshot to your private iCloud. Restoring replaces this device’s records after confirmation. This is not automatic sync. Your own backups remain available without Pro. Privacy policy: https://twinbroos.com/aquaryn-privacy Contact support: https://twinbroos.com/aquaryn-support Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/