AppicLab is where I write about lifecycle investing, leveraged ETFs, and financial independence — plus a few calculators I built along the way, so the assumptions in an article become numbers you can run yourself.
AppicLab is written and maintained by one person, indigo.la.ringo. It's mostly about leveraged investing, retirement planning, and the math behind financial decisions — lifecycle investing, leveraged ETFs like 2x funds, and the risk/reward of borrowing to invest. Alongside the writing are a handful of free calculators — a FIRE retirement calculator, leveraged ETF backtesting, a financial health check, and more — that turn an article's assumptions into numbers you can run yourself. There's also a curated directory of public Google Maps lists. Every tool runs entirely in your browser: no account, no ad trackers.
Every tool runs entirely in your browser — no data you enter leaves your device, no account is required, and no ad network tracks your behavior. The approach is deliberately minimal: server-rendered HTML loads fast on any connection, client-side computation keeps your inputs private, and a single-tool-per-page structure means you get exactly what you came for without the noise. AppicLab is a work in progress, built in public; new tools are added when something genuinely useful is missing from the web.
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About the Author
indigo.la.ringo
A software engineer chasing the slash-career dream. Was trying to figure out my relationship with the world — now being forced to figure out my relationship with AI. Lately, obsessed with figuring out the relationship between people and money. Either way, whatever answer I land on, it's fine.