Reflect

Reflect is a self-tracking and self-experimentation app built for people who want to understand their own patterns. You decide what to record, how often to record it, and what shape the data takes. Mood, sleep, focus, supplements, blood pressure, cycle symptoms: the app leaves the choice to you instead of forcing a fixed template.

The core idea is that personal data becomes useful once you can compare it. Reflect turns your logs into charts, calendars, and correlation reports, so a vague hunch like "I focus better on the days I sleep well" can turn into something you can actually look at. It also lets you run structured experiments and get a report comparing what you predicted with what happened.

The biggest limit is scope. Reflect is Apple-only: iPhone and iPad, iOS 18.0 or later, with no Android version and no web app. It leans on you to design your own metrics, which rewards curious tinkerers but can feel like work if you want a ready-made plan. Privacy is a selling point rather than a limitation: everything stays on your device.

Getting Started

1. Install Reflect on an iPhone or iPad running iOS 18.0 or later. There's no account to create and no sign-up step.
2. Build a form for whatever you want to track. Pick a metric type such as a number, a rating with custom bounds, a text field, a choice, or a timer, and set how often you want to log it.
3. Start recording entries whenever it suits you. There's no once-a-day cap and no fixed question set.
4. Review the Insights and Reports views to see trends and which metrics move together.
5. Optionally set up an experiment, choose a schedule, and share the final report when it wraps up.