Farmer's Book

The app is free and works offline. Plots, plantings, herds and animals, a diary, and a ledger that tells you what each crop and each animal actually earned rather than what the farm earned overall. Everything syncs between your phone and your computer through your own account.

Species packs add the knowledge: trees, birds, fauna and mushrooms of Portugal, with photographs, growing detail, sowing and pruning windows, and the farm role each one plays. What you keep, what you may hunt, what eats your crop, and what helps.

The plant protection module is the serious one. Every product authorised in Portugal, read from the DGAV register: what each treats, on which crops, at what dose, and how many days before harvest. Describe what you can see on a plant and it narrows the possibilities, then names only what is legally authorised for that crop and that problem. When nothing can be sprayed, it says so instead of selling you a fungicide for a virus.

It also keeps the spray record Regulation (EC) 1107/2009 requires professional users to hold for three years, in the form an inspection asks for, with your applicator card and the earliest date each treated crop may lawfully be harvested.

Portuguese, English and Polish. Android and Windows. No subscription: the app stays free and you buy only the modules you want.