Water tests, dosing, water changes, livestock, plants: every tank you keep, on one record you'll actually keep up with. Free for hobbyists. The business tiers add client tanks and plans, invoices your clients pay by Venmo, PayPal, Cash App or Zelle, and a business profile. Solo costs less than half of one service visit, and both tiers start with a 30-day trial, no card.
TankBud Pro includes client records with full tank history, service reports you can send after each visit (which the client opens without an account), invoices and recurring invoices, multi-tank tracking for clients with more than one tank, exports for book keeping, and a lot more. The hobbyist side stays free.