Finance & Business3 weeks ago
Credit Card Calculator: Find the Card That Pays You Most | Cardocrat
Calculate which credit card will earn you the most based on your real spending patterns.
@cardocrat · X
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Calculate which credit card will earn you the most based on your real spending patterns.
@cardocrat · X
Use 100+ free online calculators for math, chemistry, physics, loans, health, and AI costs—no signup needed.
u/averageChilean · Reddit
Built a free tool site to help my brother study — now has 100+ tools, would love feedback My brother's in high school and needed something more visual to study chemistry, physics, and math, so I used Claude to build him a simple site with interactive calculators and visualizers. I'm not a programmer or from a tech background, so without AI this wouldn't have happened, at least not this fast. It ended up helping him a lot more than I expected, so I kept expanding it, added a bunch of other
Use free business calculators for profit margin, break-even, and tax analysis.
@BizCalcLab · X
Calculate mortgages, loans, taxes, savings, and budgets online.
@darsh0891 · X
Meet CalcyFinance — the simple way to track your budgets, monitor spending, hand actually hit your savings goals without the headache. Stop guessing where your money goes. Try it out: 👍 #PersonalFinance #Budgeting #Fintech #buildinpublic
Instant access to 305+ calculators for money, health, math, and everyday conversions.
@calculate_at · X
Track Bitcoin supply metrics in real-time.
@_nikzzy07 · X
i've built my first app, its a BTC supply tracker i hope you guys like it!!
Solve calculus problems with step-by-step animated solutions for derivatives, integrals, and limits.
marcushuang4595 · V2EX
做了一个会把微积分解题过程“动起来”的计算器，想听听大家的意见 最近做了一个微积分学习工具 CalculusMate 。 起因是我发现很多计算器只给最终答案，即使列出步骤，也很难看出表达式究竟是怎样一步步变化的。所以我尝试把求导、积分和极限的计算过程做成可以逐步播放的形式。 目前支持： - 导数、积分和极限计算 - 展示每一步使用的规则 - 动画演示表达式的变化 - 支持常见数学符号键盘 - 中英文界面 - 基础计算无需注册 可以从这个页面体验： https://calculusmate.com/step-by-step 免费版本： https://calculusmate.com/free 目前还处于早期阶段，我比较想知道： 1. 解题步骤是否足够容易理解？ 2. 动画是帮助理解，还是会让页面显得太复杂？ 3. 还希望优先支持哪些题型？ 欢迎直接指出问题，尤其是计算结果、移动端体验和表达不清楚的地方。
Real-time options trading terminal displaying volatility, Greeks, and gamma exposure for 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
AI platform for macroeconomic research with daily analysis, central bank monitoring, and trading tools.
@ChrizBogota · X
A great demo of why in Financial Markets you have to use Grok, it's not affected by "training cut-off date" like the other models. is 100% run on Grok, (but mostly built with Claude).
Coursey shows the real data on online courses — member counts, revenue estimates, pricing, and rankings — backed by honest reviews, so you can pick the course that's actually worth
@00jbam · X
buying courses online are difficult, expensive, and sometimes sketchy, however coursey makes the entire process more seamless and effortless.
Free online calculators and converters for finance, health, and education without signup.
@Toolvica · X
Calculate net app revenue accounting for global commissions, VAT, and withholding taxes.
mangrove · V2EX
出海 SaaS/APP 怎么定价？手搓了个沙盘模拟工具 最近在和朋友一起看了下工具类产品的报表 发现有一些持续创收的产品，其实最终看下来，还是倒贴的 因为一开始就自己俩人捣鼓，也不懂专业的财务知识，后面慢慢才发现会存在 gap 值 这一些 gap 值的原因就是各种佣金、消费税和预扣税等等 而且这个和开发者账号主体以及产品推广的地区还都有关系 捋清楚之后，自己也做了这个工具 也希望有专业的小伙伴可以给点宝贵意见哈~ https://trueproceeds.com/