Guides

Practical guides to study planning, travel budgets, training recovery, company research and freelance sales. Find a clear method, examples and sources for each topic.

Study planning

Best study apps for students in 2026

A practical comparison of study apps for students in 2026, including planners, focus audio, anti-distraction tools and Pomodoro timers.

Vitae vs Brain.fm

Brain.fm is an audio catalog. Vitae is a study planner with focus sessions built in. Compared on planning, exam tracking, offline use and pricing.

How to plan a study week

A practical framework for planning a study week: mapping deadlines, blocking focus time, and leaving room for review and rest.

Best offline study apps

What to look for when you want study planning and focus tools that remain useful without a connection.

Best study planner apps for iPhone in 2026

Compare iPhone study planning options: Vitae, Apple apps, configurable task tools and paper. Check exam tracking, setup effort and a sample timetable.

Best exam countdown app for iPhone

Use an exam countdown with realistic study targets: worked hours-per-day example, available study days and a look at Vitae’s Exam Mode on iPhone.

Best study timer for iPhone

Choose an iPhone study timer for countdowns, focus/break cycles or subject logs. Includes a time-budget example and a practical alert test.

How to know what to study today

A simple, repeatable way to decide what to study today when several subjects and exams are competing for the same hour, and how to automate the decision.

How to plan revision for exams

A step-by-step method for turning exam dates into a realistic study schedule: setting hour targets and working backward from the exam date.

Binaural beats for studying on iPhone

What binaural beats are, what the evidence actually supports, and how to try them for studying on iPhone with headphones.

Travel & money

Best travel budget apps

Compare TravelBudget, TravelSpend, Splitwise and a spreadsheet for daily travel budgets, currencies, shared expenses and offline use. Trail Wallet status included.

How to budget a trip

A practical guide to budgeting a trip: estimating daily costs by category, building in a buffer, tracking spending as you go, and adjusting mid-trip.

How to track expenses while traveling

A practical system for tracking travel expenses across currencies, keeping receipts useful, and knowing how much budget remains during a trip.

Fitness & recovery

How long does muscle soreness (DOMS) last?

DOMS commonly starts 12–24 hours after exercise and peaks around 24–72 hours. Understand the timeline, its limits and symptoms that need medical attention.

How many rest days do you need per week?

There's no single number of rest days that fits everyone. What actually determines how much recovery you need, and a practical starting point.

How long do muscles take to recover?

Muscle recovery varies with workload and symptoms. Learn what to consider before repeating a session and why an app estimate cannot establish readiness.

How to train when you are sore

How to decide what to do when you are sore: assess movement, adjust volume, train another muscle group, or take rest without forcing a rigid plan.

Investment research

What is an economic moat?

An accessible guide to economic moats: what they are, the main sources of durable advantage, and questions to ask when researching a company.

How to analyze a company

A practical framework for researching a company: the business, industry, financial model, risks, competition and valuation questions.

Pricing power explained

What pricing power means, how it differs from simply raising prices, and which questions help assess it when researching a company.