Find what's behind your bad days.

Lopie is an iPhone diary that logs your day from one sentence, then shows what tends to line up with your bad days. You say what happened, Lopie keeps the record, and after about two weeks it can compare your off days with the rest. What it shows is a possible pattern, nothing more. Learn more

Lopie usually has enough for a first pattern after 14 days of logging, at about two minutes a day. Fewer days still leave you a record. More days make the pattern steadier, especially for something that happens once a week.

Lopie logs your evening as well as your morning, so you can see what tends to line up with the rough starts. Bedtime, the last coffee, the last meal and how loud the day was all sit on the same timeline. You read the evenings before your worst mornings. Learn more

Lopie puts meals and how you felt afterwards on the same timeline, with times, so you can read back the two-to-eight-hour window before a heavy stretch. You keep eating normally while the record builds. Learn more

Lopie is a daily diary without the forms. Instead of sliders and checkboxes, you say or type one sentence and Lopie files the meal, the dose, the mood and the note. Then you can ask it questions about the weeks you logged.

Lopie takes one sentence, a photo, or a few spoken words and files the details itself, so there is no form to fill in. Lock Screen widgets and Siri log without opening the app. Learn more

Lopie keeps cycle day beside your mood, energy and everything else you logged that day. Turn it on once, or leave it off. It stays off until you ask for it. Learn more

No. Lopie is a wellness and journaling companion, not a medical device. It shows possible patterns in what you logged and never claims a cause. Anything about your health belongs with a qualified professional.

Lopie keeps your diary private, shows no ads, and never uses your data to target ads. No account is needed to start.

Lopie is an iPhone app and needs iOS 18 or later. There is no Android or web version.

Lopie is free to download, and Lopie+ starts with seven days free, then costs $69.99/year or $2.99/week. Cancel anytime in your App Store settings.

Lopie can export a report of your entries, plus a plain text summary of your cycle history with averages, recent cycle lengths and patterns. It is your record, so you decide what happens to it.