Guide
Should You Build a Tracking App in 2026?
Thinking of building a calorie counter, water tracker or workout app? A developer who built one maps the 2026 market: 200M-user MyFitnessPal, the Cal AI exit,…
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Science-backed articles on calories and macros, AI photo food logging, GPS workout tracking and hydration — plus honest head-to-head app comparisons.
Thinking of building a calorie counter, water tracker or workout app? A developer who built one maps the 2026 market: 200M-user MyFitnessPal, the Cal AI exit,…
Read articleMyFitnessPal has the bigger food database; Lose It! has the friendlier free tier and free barcode scanning. We compare both on logging speed, data quality, price…
Read articleNike Run Club is free and coaches you; Strava is social, multi-sport and analytical but paywalls its best features. We compare both on GPS accuracy, training…
Read articleWaterMinder and Hydro Coach are the two most-installed water trackers, and they are built for opposite users. We compare price, Apple Watch and Wear OS support,…
Read articleA systematic review of 52 studies puts AI calorie estimation error between 0.10% and 38.3%. But self-reported food logs are off by up to 47%. Here is what that…
Read articleMost running apps track the calories you burn but not the ones you eat, and most calorie apps do the reverse. Here is which apps close the loop — Strava, Nike…
Read articleWe compared Strava and Suu on live GPS workout tracking, route maps, calories burned, calories eaten and hydration. Which suits whom — and where Suu does not…
Read articleWe compared the apps that read calories and macros from a meal photo: Suu, Cal AI, MyFitnessPal, Yazio and Lifesum. Which suits whom, what the free limits are,…
Read articleWe compared workout tracking apps by what they actually do with your data: Strava, Nike Run Club, Samsung Health, Apple Fitness and Suu. Which logs calories,…
Read articleMost apps log calories and workouts separately. We compared which ones actually connect them — so the run you record changes what you need to eat and drink. Suu,…
Read articleYazio vs Cronometer compared on micronutrient depth, data accuracy, recipes, free tier and daily usability. Which suits precision trackers, which suits everyday…
Read articleWhich calorie app is genuinely free? We compared the free tiers of Suu, MyFitnessPal, Lose It!, Cronometer and FatSecret line by line: barcode, macros, exercise…
Read articleLifesum and Yazio compared on food database, recipes, macro tracking, free plan limits and price. Which suits beginners, which suits meal planners — and what…
Read articleWe compared Cal AI and Suu on photo calorie analysis, free plan limits, hydration and exercise tracking. When Cal AI is the better pick, and when Suu is.
Read articleMyFitnessPal vs Yazio compared on food database size, barcode scanning, recipes, macro tracking, free plan limits and price. Which one to pick, when to switch,…
Read articleFive popular nutrition apps compared. Water + calories + exercise in one app, voice and photo logging — with sources.
Read articleThe best all-in-one MyFitnessPal alternative? Voice logging, hydration science and price compared.
Read articleIntermittent fasting vs real hydration science. Voice/photo logging and water + calories + exercise in one app.
Read articleWhy combined tracking matters and how Suu solves it in one app with voice/photo logging and Health sync.
Read articleCan you log meals by voice, how accurate is it, and how is privacy protected? Track calories by speaking with Suu.
Read articleHow do you set your macros from scratch? A step-by-step formula from calories to macros, a worked example, and easy AI tracking.
Read articleThe one real mechanism behind weight loss. How big it should be, the safe pace, common mistakes, and easy AI calorie tracking.
Read articleCalculate your own number with the MET formula, an activity table for walking/running/cycling, and automatic Apple Health tracking.
Read articleHow counting calories from a food photo works, how accurate it is, and tips to make it more precise.
Read articleSuu now runs in two modes: a clean one-tap Simple Mode and a detailed statistics + quick-add Advanced Mode. Which one fits you, and how to switch?
Read articleYour pet now owns the streak. Bubble pop, addition, subtraction and memory match earn droplets — spend them to dress up your cat or dog.
Read article2% of every Premium subscription is donated to clean water well projects in Africa. All receipts public, JSON open, git-tracked — only indie water app doing this.
Read articleHow water boosts brain function, metabolism, skin health, and immune system — backed by peer-reviewed research.
Read articleThe science-based formula for calculating your personal daily water goal — based on weight, activity level, and climate.
Read articleHeadaches, fatigue, dark urine — learn to recognize dehydration before it affects your performance and health.
Read articleHow much water to drink before, during, and after workouts. Sweat loss, electrolytes, and sport-specific hydration.
Read articleThe metabolism boost, hydration window, and cognitive benefits of morning water — and how to build the habit.
Read article7 behaviour-science strategies to make drinking water automatic — habit stacking, smart reminders, streaks, and social accountability.
Read articleAn honest comparison of the top water tracking apps — features, design, pricing, and what makes Suu stand out.
Read articleUnderstanding the dehydration factor — how coffee, tea, juice, and other beverages contribute to your daily hydration.
Read articleWater preloading, thermogenesis, and hunger-thirst confusion — the science of water and weight management.
Read articleThe science behind hydration and skin health — elasticity, aging, collagen production, and what water can really do for your skin.
Read articleDehydration disrupts sleep quality — learn optimal timing, how much to drink before bed, and morning rehydration strategies.
Read articleKidney stones, UTI prevention, and chronic kidney disease — how consistent hydration supports kidney function.
Read articleBlood volume rises 50% in pregnancy. Exactly how much water to drink per trimester — and Suu's new pregnancy mode sets your target automatically.
Read articleBreast milk is 87% water. Nursing mothers need ~700ml more per day. Science-backed guide + Suu breastfeeding mode.
Read articleNo rival app has it: leagues up to 4 friends, see their progress, send hydration nudges, cross-platform iOS + Android. Only in Suu.
Read articleSuu's Apple Watch app is live: add water, log meals by voice and record GPS workouts with live heart rate from your wrist — plus how Apple Health raises your water goal.
Read articleSet up Siri Shortcuts in Suu for voice-controlled water logging. Step-by-step guide for iPhone, Apple Watch, and Android voice commands.
Read articleSuu's hydration score measures four components — completion, regularity, timing, and more. Here's how it's calculated and how to improve it.
Read articleBadges, streaks, friend leagues, and challenges — Suu's gamification system is built on behavioral science. Here's why it actually works.
Read articleSuu now reads your activity from Apple Health and Google Fit and automatically raises your daily water goal. Science-backed math for 30+ workout types.
Read articleSuu now calculates caffeine (mg) and sugar (g) for 91 beverages. Smart warnings against the FDA 400 mg and WHO 25 g daily ceilings.
Read articleFor users searching "I drink too much coffee, help me." Caffeine addiction guide, gradual reduction, 7-day plan and Suu tracking.
Read article400mg for healthy adults, 200mg for pregnant women, 100mg for sensitive people. CYP1A2 enzyme and personal tolerance recommendations.
Read articleCompensation water for beer, wine, whiskey. The 1:1 rule, 4-phase rehydration plan and alcohol tracking with Suu.
Read articleCaffeine/sugar tracking for Red Bull, Monster, Burn. FDA limit, healthy alternatives and 4-week reduction plan.
Read articleFresh-squeezed vs packaged comparison, juice for kids, diet impact and sugar tracking with Suu.
Read articleHydration factor and caffeine for 12+ tea types. Herbal teas 100% hydration, Maughan 2016 science references.
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