Utilities2 weeks ago
calculate.at — 305+ Calculators, No Signup Required
Instant access to 305+ calculators for money, health, math, and everyday conversions.
@calculate_at · X
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Instant access to 305+ calculators for money, health, math, and everyday conversions.
@calculate_at · X
Read I Ching hexagrams and Bazi birth charts with traditional algorithms.
@hdd147852 · X
真正难点不是把古籍塞进模型，而是防止模型“编卦、编盘”。更稳的架构是：传统算法先确定性起卦/排盘，AI 只解释结构化结果；八字场景还应避免把精确生日、地点直接传给模型。我们按这个边界做了一个中英双语产品，可匿名体验：
A free daily deduction puzzle in your browser — read three testimonies, tap the one that's lying. No signup, no app, one minute a day.
@fictanode · X
Free collection of 48 online calculators for finance, health, math, and everyday needs.
@avinashraj61815 · X
i vibe coded this week
Train your focus, speed, and memory in 6-minute brain exercise sessions.
@i_manish_30 · X
Mathletiq - 6 minute brain exercise app
Guess the secret four-digit number in this classic logic puzzle game.
@Olys1703 · X
🚀 Just released a new version of Bulls and Cows! The game now supports Dark Mode 🌙
Open-source notebook for tracking cognition, sleep, and moods through psychometric self-reflection.
u/Lower_Junket_222 · Reddit
An open-source fully local tool for organizing and measuring your cognition with nootropic logging and a genetics module Axon lets you: Create a personal cognitive and psychometric baseline Log sessions alongside sleep, stress, time of day and subjective effects Track attentional, cognitive and behavioral agency Look at changes across networks like the DMN, frontoparietal, salience and attention networks View deterministic n-of-1 summaries with uncertainty shown instead of receivi
Five minutes of interfaces generated by something that has seen a million forms and understood none of them. Solve or skip — the clock does not stop either way.
u/Ok_Brush_3449 · Reddit
I've just launched a game where you need to beat the AI Sloppy UI. 5 minutes with scoring and leaderboard AI-Slop can be fun! how much pain are you willing to take? Free no Sign-Up! www.ai-rush.lol submitted by /u/Ok_Brush_3449 to r/SideProject [link] [comments]
Practice LeetCode problems with automated spaced repetition scheduling.
@JoydeepNath007 · X
Free browser game Bulls and Cows — a classic number-guessing logic puzzle. Guess the secret four-digit number in as few attempts as possible.
@Olys1703 · X
Finally, Bulls and Cows has moved to its very own domain 🚀🚀🚀
Type a math problem and get step-by-step walkthroughs with explanations.
u/peterparkermarker · Reddit
MathIQ I built mathiq.io with Claude Code because I wanted a way for students struggling with college level maths to see how the problems can be broken down and not as intimidating. Each walkthrough goes from beginning to end and each step has a "why and how?" feature. Anon users get 1 free daily walkthrough powered by Haiku 4.5. Signed in users get 3 free daily walkthroughts powered by Haiku 4.5. Plus users get 5 Opus 4.6 walkthroughs plus 20 Sonnet 4.6. Pro users get 8 Opus/30
Chat with Jungian AI about dreams, moods, and relationships to build an evolving map of your inner patterns.
Jung Room — 不是聊完即忘的 AI 聊天，基于荣格分析心理学，从一个梦、一种情绪或一段关系困惑开始，把反复出现的内在模式沉淀为会谈笔记和一张持续生长、由用户掌控的内在地图