Pendi

A day actually worth living.

Pendi learns your energy, your rhythms, and your life, then shapes days that fit how you actually feel. A companion, not another to-do list.

Start your day See how it thinks

Free & self-hostable · your feeds stay on your device · no streaks, ever

Life happened? Say it.

The chat reads your real day, makes the actual edits, and shows every action it took, never just words.

The whole day, not just the work hours.

Eight hours for sleep, eight for commitments, eight for you, and a planner that treats all three as equally legitimate.

Plan with your people

Add friends by email. Sharing is opt-in per friend, free/busy only, for whatever window you choose: an evening, a month, forever. Pendi spots when all of you are free, two people or the whole squad, and proposes a plan that lands on calendars only when everyone says yes. Friends never see what you're doing, or why.

🎮 All three free: Fri 21:00

Planned around your energy

A two-process circadian model, grounded in a dozen research papers, places deep work where your mind peaks and rest where it dips. It follows your rhythm, not a 9-to-5 template.[1][2]

Say it like you’d tell a friend

“My class runs till 11 tonight.” Pendi reads the day, moves what must move, keeps your wind-down, and shows its work: every change is a real action you can see.

Weather on the timeline

Drizzle bands, gusty mornings, a thunderstorm at 19:00, all drawn right on your day and cross-checked against several forecast models. Rainy run? Pendi quietly suggests indoor cardio instead.[3]

Your shows, scheduled

Track anime, TV, manga, games. Episodes land on your timeline the day they drop and your backlog is sized in real minutes. And yes, you can watch while you eat.

A calm reader, built in

RSS with folders and previews. Your feeds stay on your device; the server just fetches. News without five other apps or anyone else’s algorithm.

Gentle by design

No streaks. No guilt. Skipped cardio becomes a quiet note. High-contrast theme, OpenDyslexic, bionic reading: a good day should be readable by everyone.[4]

…and the rest of a full day

Todos & reminders

Deadlines, a quiet bell, optional email nudges. Set them yourself or let a flow set them for you.

Focus sessions

A gentle Pomodoro that starts from any block or todo and logs the day’s sessions.[5][6]

Exam mode

Practice lands at the exam’s real slot time; a reminder asks you to confirm the slot, then re-pins your training to match.[7]

Meals, your way

Set breakfast, lunch and dinner times, or mark the ones you skip. The whole day re-shapes around it.

Live calendar feed

Your standing schedule as a subscribable .ics, so Pendi plays nice with every other calendar.

Backlog, in minutes

Six unwatched episodes ≈ 2h 24m. Catch-up blocks are sized from reality, never guessed.

Reality check-ins

Mark blocks done or skipped. The timeline stays honest and the day’s energy curve re-predicts from what actually happened.

Five themes, seven accents

Dawn, dusk, light, dark and high-contrast. Warm by default, yours by choice.

Hosted, self-hosted, on-device

Run our server, your server, or nothing but your machine, the AI model included.

AI on your terms

The everyday engine is pure algorithm, running on what you've shared and nothing else. When you want more, Pendi brings a model in: chat that makes real, visible edits (“my class ran late” and the blocks actually move, every action shown), one-tap idea sparks for goals, gear and feeds, and a quiet post-edit review that offers a re-tune instead of forcing one. Use our hosted model, bring your own key, or run one locally. Every AI touch is opt-in, every change is visible, and nothing leaves your device without your say.

Three steps, then it’s yours.

01

Tell it about you

Wake and sleep, commitments, goals, the gear you own, the meals you actually eat, and the ones you skip.

02

Get a day that fits

A full timeline, placed by energy and evidence: breakfast after waking, demanding work clear of the post-lunch dip, creativity in loose evenings.

03

Life happens. It adjusts.

Drag a block, ask in chat, mark how it really went. Today reconciles with reality instead of pretending the plan survived.

Grounded in evidence: placement rules cite sleep-inertia[8], meal-timing[9][10], post-lunch-dip[2] and creativity research[11][12]: wind-down survives a late class[13], vigorous exercise ends ≥90 minutes before sleep[14], demanding work avoids the afternoon trough[2]. And every recommendation or substitution draws only on what you've chosen to share with Pendi: your goals, your gear, your shows. Nothing else.

References

  1. [1] Two-process model of sleep regulation (reappraisal) ↗ Borbély et al., J Sleep Res
  2. [2] Sleep propensity & the post-lunch dip, modelled ↗ PMC2647793
  3. [3] The effects of weather on daily mood ↗ Denissen et al. 2008, Emotion
  4. [4] The motivational pull of video games (self-determination theory) ↗ Ryan, Rigby & Przybylski 2006, Motivation & Emotion
  5. [5] Mental recovery after a fatiguing task ↗ Frontiers (PMC7785754)
  6. [6] The cost of interrupted work (~23 min to refocus) ↗ Mark, Gudith & Klocke 2008, CHI
  7. [7] Skill acquisition & consolidation by time of day ↗ Scientific Reports, 2022
  8. [8] Sleep inertia ↗ Tassi & Muzet 2000, Sleep Med Rev
  9. [9] Meal timing & frequency (AHA statement) ↗ St-Onge et al. 2017, Circulation
  10. [10] Late dinners & metabolism ↗ Gu et al. 2020, JCEM
  11. [11] Insight peaks off-peak (synchrony effect) ↗ Wieth & Zacks 2011, Thinking & Reasoning
  12. [12] Walking boosts creative ideation ↗ Oppezzo & Schwartz 2014, JEP:LMC
  13. [13] Sleep hygiene: the evidence ↗ Irish et al. 2015, Sleep Med Rev
  14. [14] Evening exercise & sleep (meta-analysis) ↗ Stutz et al. 2019, Sports Medicine
  15. [15] Deliberate practice & its daily limits ↗ Ericsson, Krampe & Tesch-Römer 1993, Psych Review

Tomorrow morning could feel different.

Set your rhythm once. Let the days start fitting.

Open Pendi