Alex Doyle is a personal finance and technology writer at calculatorapp.io. He specializes in turning complicated math into plain-English explanations — the kind that actually help you make a decision, not just understand a concept in the abstract.
His work spans personal finance (mortgages, compound interest, 1099 vs W2 tax math, VA disability ratings, retirement projections), health and nutrition science (TDEE, BMR, calorie deficits, protein targets, pregnancy timelines), and AI cost analysis (API pricing, subscription ROI, LLM margin math). The common thread: every article is built around a calculator, and every calculator is built around a real question people are trying to answer.
Before joining calculatorapp.io, Alex spent several years in data journalism and financial content, where he developed an obsession with the gap between how financial math is taught and how people actually use it day-to-day. He holds a background in economics and has spent time in both editorial and product roles at digital finance publications.
His approach: skip the preamble, show the formula, give a real worked example, then let the calculator handle the rest.
Areas of Expertise