8. Cognitive Bias Flashcards — Flip through the named thinking traps and mark the ones you now recognize.(/bias-flashcards-lab)
9. Statistics Literacy Lab — Short quizzes on the common statistics traps — misleading averages, cherry-picked samples.(/stats-literacy-lab)
10. Time Audit Lab — Map a whole day in 30-minute blocks and see where the hours actually went.(/time-audit-lab)
11. Reading Retention Lab — Log what you read, then honestly self-check what stuck.(/reading-retention-lab)
12. Posture Lab — A daily ergonomic self-check with an honest running score.(/posture-lab)
13. Pedagogical Research Lab — The study techniques that survived real research, with real citations — and the fads called out.(/pedagogy-lab)
14. Learning Styles Lab — A self-assessment that is honest about the research: style-matching doesn't improve learning.(/learning-styles-lab)
15. Hydration Lab — Water tracking without the '8 glasses' gospel — your own picture, not a marketing target.(/hydration-lab)
16. Weather-Mood Correlation Lab — Log mood and weather daily and see YOUR personal correlation, not a claim about everyone.(/weather-mood-lab)
17. Left-Right Body Bias Lab — Map your side preferences and measure your own tap-speed asymmetry.(/body-bias-lab)
18. Stranger Voice Memory Lab — Meet five spoken sentences, wait, then pick each voice out of a lineup.(/voice-memory-lab)
19. Lunch Time Travel Lab — Study a synthetic lunch week, pause, recall what was eaten — no real people involved.(/lunch-recall-lab)
20. Resting Face Reader Lab — Read six low-intensity AI-generated faces and see where your reads part ways with intent.(/resting-face-lab)
21. Caffeine Tracker Lab — Log doses and see the real half-life decay curve — no crash-prediction magic.(/caffeine-tracker-lab)
22. Cold Exposure Lab — Log sessions with an honest evidence note — it tracks your streak, not a health claim.(/cold-exposure-lab)
23. Freewrite Lab — A timed writing sprint that keeps the pen moving, with entries you keep.(/freewrite-lab)
24. Habit Tracker Lab — Daily habits with honest streaks — miss a day and the streak says so.(/habit-tracker-lab)
25. Mood → Music Lab — Pick a state, get a search starter — a nudge, not a diagnosis, and it plays nothing for you.(/mood-music-lab)
26. Net Worth Snapshot Lab — Assets minus liabilities — a point-in-time snapshot that never leaves your device.(/net-worth-lab)
27. Bill Calendar Lab — Upcoming bills with days-until-due at a glance — saved only in your browser.(/bill-calendar-lab)
28. Spending Log Lab — Log expenses and see the month broken down by category — never uploaded.(/spending-log-lab)
All 28 verified: 100% in-browser, no accounts, no uploads — most save only to your own browser's storage, five save nothing at all.
The post (copy-ready)
Twenty-eight more tools just left my app's login wall. No account. No paywall. No catch.
Sixty-five things now live on "The Public Shelf" — free, outside the wall, each one stating exactly what it is and what it isn't. The newest twenty-eight, in three groups:
STUDY & MEMORY (11)
1️⃣ Feynman Technique Lab — explain it simply, then grade your honesty.
2️⃣ Cornell Notes Lab — cues, notes, summary.
3️⃣ Cloze Deletion Lab — your own text becomes a fill-in-the-blank test.
4️⃣ Concept Map Lab — build the map yourself.
5️⃣ Spaced Repetition Lab — your flashcards on an SM-2 schedule.
6️⃣ Vocabulary Lab — a word a day with an honest "I knew it" button.
7️⃣ Verbal Fluency Lab — the classic timed word task.
8️⃣ Pedagogical Research Lab — what survived real research, with citations, and the fads called out.
9️⃣ Learning Styles Lab — honest about the myth in its own title.
🔟 Reading Retention Lab — measure remembering, not pages turned.
1️⃣1️⃣ Cognitive Bias Flashcards — learn the names of the traps.
BODY & WELLBEING (7)
Posture Lab · Hydration Lab · Weather-Mood Correlation Lab · Caffeine Tracker Lab · Cold Exposure Lab · Habit Tracker Lab · Mood → Music Lab
Every one tracks YOUR data honestly — the weather-mood lab computes your personal correlation, not a claim about people in general, and the cold exposure tracker logs your streak without selling a health claim.
JUDGMENT & MONEY (10)
Statistics Literacy Lab · Time Audit Lab · Body Bias Lab · Stranger Voice Memory Lab · Lunch Time Travel Lab · Resting Face Reader Lab · Freewrite Lab · Net Worth Snapshot Lab · Bill Calendar Lab · Spending Log Lab
The money three (net worth, bills, spending) are the most personal on the shelf — which is exactly why they save only in your browser and never upload anything.
Why keep giving these away?
Because every one runs on YOUR machine. My cost to serve them is effectively zero — so a price would be a toll booth, not a price. And a "no-fibs" brand promise only means something at the moment it costs you something.
And honest software states its own limits:
→ The Learning Styles Lab debunks learning styles — in the lab about learning styles.
→ The caffeine tracker shows a half-life decay curve, not crash predictions.
→ The weather-mood correlation is yours alone; it never claims a general effect.
→ A few of these (verbal fluency, body bias, voice memory, lunch recall, resting face) save nothing at all — close the tab and they forget you.
Free means free. Same rule as the first thirty-seven.
#buildinpublic #honestsoftware #privacy #edtech #nolibrary
No-fibs note: the app doesn't post anywhere by itself — copy this and review it before publishing.