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Mentid — mental tidy. A quiet private steward for a tidier mind. Four tools under one roof:
Ledger keeps track of every date in your life that has an end — passports, MOTs, insurance, warranties, subscriptions, medications.
Close is a five-minute nightly ritual: capture wins, empty your mind, name tomorrow's one thing.
Decide offers three levels of thinking — a one-minute gut check, a weighted pros/cons, and a deeper journal that tracks whether you were right.
Journal is a daily page for anything you want to write. Over time it notices the words you use, what you return to, and quietly links what you're writing to what you're deciding.
Everything lives on this device. No account, no server. Add to your home screen on mobile and it behaves like an app. Enable notifications and you'll be reminded when something is due.
Our life is frittered away by detail. Simplify, simplify. — Henry David Thoreau
Privacy — what Mentid does and does not do with your writing
Your personal decision factors. The more consistently you log them, the more accurately the pattern engine can spot which ones correlate with good outcomes.
The brain keeps unfinished tasks and worries “active” until it trusts them to be safely stored somewhere else. Psychologists call this the Zeigarnik effect — unfinished work occupies attention in the background. Writing loops down externalises them. The mind can stop holding them.
Zeigarnik, 1927 · replicated Masicampo & Baumeister, 2011
Rumination is the mind rerunning the same worry loop without resolving it. Expressive writing has been shown to break the loop by forcing the worry into structured language — a shift from the diffuse emotional brain to the more analytical pre-frontal cortex.
Pennebaker & Smyth, Opening Up by Writing It Down
A short bedtime planning ritual — writing a to-do list for tomorrow — has been shown in sleep studies to shorten the time it takes to fall asleep. The act of handing tomorrow’s concerns to paper lets the brain stop rehearsing them at 2am.
Scullin et al., Journal of Experimental Psychology, 2018
Naming what you’re feeling — even briefly — reduces the intensity of that feeling. Brain imaging shows that affect labelling quiets amygdala activity. Your “brain dump” is a form of affect labelling.
Lieberman et al., Psychological Science, 2007
The mind prefers narratives with endings. A deliberate nightly “close” marks today as done, separating it from tomorrow. Without closure, days bleed into one long unresolved stream — which is how stress and sleeplessness compound.
In short: you’re not journaling for the sake of it. You’re telling your nervous system that work is over for the day.