2000 calories a day is the number most maintenance and gentle-fat-loss plans circle around — but the calorie total is only half the story. Two 2000-calorie days can look completely different: one leaves you full and steady, the other has you hungry by 3pm and raiding the biscuit tin. The difference is the macros, mostly whether there's enough protein to keep you satisfied.
This planner builds a 2000-calorie plan around your protein and diet, not just the headline number, so the days actually hold together. Set your calories and it splits them sensibly across meals, then generates the plan (and a shopping list). Just try it — and if 2000 turns out too much or too little, nudge it and watch the plan rebuild.