
Free Psychology & Brain Tests | Evidence-Based Tools
Take evidence-based psychology and brain tests measuring brain age, sleep quality, and well-being online.
@LifeGraphPlus · X
The full gallery
Tech stack
60 projects

Take evidence-based psychology and brain tests measuring brain age, sleep quality, and well-being online.
@LifeGraphPlus · X

Upload a peptide Certificate of Analysis to verify authenticity and flag suspicious indicators.
@DanielGPT2022 · X
I made an app for peptides users, that will hopefully adress their trust issues:

Turn your résumé into an evidence-first portfolio with AI-guided suggestions for improvement.
@Showcase_app1 · X
Building Showcase: turns a résumé into an editable, evidence-first portfolio for final-year students and new grads. AI-assisted drafts, nothing invented. Build/edit/preview free; live publishing is Pro.

Community-sourced reliability data for 190+ car engines. Know what breaks, when, and how much it costs before you buy.
@enginecreep · X

Visual testing for you and your agents. An AI judge tells an intended change from a real regression, so you review decisions, not diffs.
@igorluchenkov · X
Hey Yuhao! Been running a lot of agents while building UI and built a tool for visual testing that integrates nicely with agents and gives your agent a way to make sure it didn't introduce any UI regressions:

Real-time options trading terminal showing volatility, Greeks, and gamma exposure across 6,000+ stocks.
@apexvol · X
Options are a volatility bet, but price charts can't show you the vol. Our terminal puts the whole surface on one screen: IV rank and percentile, term structure, skew, vol risk premium, dealer gamma and implied earnings moves, across ~6,000 tickers

Runs real exploits against your web apps, APIs, and AI features with proof of each finding.
@yedil_bek · X
Building RedRun - security testing that proves what it finds. Runs the real exploit + hands you the exact request/response: SQLi, IDOR, SSRF, XSS, JWT + AI prompt-injection. Zero false positives. Free scan → Active engine invite-only - DM for access code

Upload datasets to automatically find statistically significant correlations and causal relationships.
@matthew_meadows · X
Correlation Studio - Discovery Mining • Causation Analysis A powerful new SaaS statistics application that brings the insights of correlation data science to everyone. Data science without the code.

Scan your AI bills to find waste and prove savings with tamper-evident evidence.
@askrashidkhan · X

Complete real work in tech and design to earn skill badges and build a verifiable portfolio.
u/tejassp03 · Reddit
building in public: a tool to practice real work instead of courses saw so many people finishing courses and collecting certificates like they're collecting pokemon cards. So we built something that closes the gap between "i finished the course" and "i can actually do the work" it's tasklearn.app , you get real industry tasks, you attempt them, you see how far you actually get. no videos, no tutorials , just the task itself and ai feedback on what you did. learning th

SottoQR During the July 2024 uprising, fake and manipulated images obscured the truth, making it difficult to verify evidence or track justice. Our AI powered platform authenticate
Tahscene · GitHub
SottoQR During the July 2024 uprising, fake and manipulated images obscured the truth, making it difficult to verify evidence or track justice. Our AI powered platform authenticates images, preserves credible evidence & transparently tracks case progress, helping protect historical truth during crises and beyond.

Two buyers get the same car from the same dealer and pay thousands apart. VINdicated puts real price context, deal checks, and side-by-side comparisons on the buyer's side, before
@BrianVINdicated · X