Quasar
prashant.exe Health & Fitness
Not just a calorie app. An adaptive engine that learns your body.
- Downloads
- 10+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Aug 17
- 2026 · v1.1.0
Screenshots
About Quasar
Most calorie apps count. Quasar thinks.
Quasar is an adaptive metabolic engine for people serious about body composition. While other apps give you a static target, Quasar recalculates your BMR, TDEE, and macro splits on every weight log. Your plan evolves as your body does.
🔥 𝗙𝗢𝗨𝗥 𝗦𝗣𝗘𝗖𝗜𝗔𝗟𝗜𝗭𝗘𝗗 𝗧𝗥𝗔𝗜𝗡𝗜𝗡𝗚 𝗠𝗢𝗗𝗘𝗦
𝗧𝗵𝗲𝗿𝗺𝗶𝗰 𝗘𝗻𝗴𝗶𝗻𝗲 Calculates the exact digestion cost of every meal — Protein (25%), Carbs (8%), Fat (2%) — and credits it back to your daily budget in real time. Built on peer-reviewed TEF research by Westerterp (2004) and Acheson et al.
𝗗𝗲𝗳𝗶𝗰𝗶𝘁 𝗖𝘆𝗰𝗹𝗶𝗻𝗴 Built on the MATADOR study (Byrne et al., 2017) — cycling deficit and maintenance prevents adaptive thermogenesis and produces greater fat loss than continuous restriction.
𝗟𝗼𝗮𝗱 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 Pauses your deficit during high-stress periods, switches to maintenance, then resumes exactly where it left off.
𝗜𝗻𝗷𝘂𝗿𝘆 𝗥𝗲𝗰𝗼𝘃𝗲𝗿𝘆 50 conditions across 11 categories — fractures, sprains, surgeries, infections, chronic conditions, mental health, and more. Each with clinically-informed macro splits, BMR multipliers, and a personalized recovery message.
Includes a 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗖𝗵𝗲𝗮𝘁 𝗗𝗮𝘆: mark a cheat day, log the excess calories, and Quasar distributes precise daily reductions across your chosen recovery window — to the exact calorie. Next cheat day unlocks only after compensation is complete.
⚔️ 𝗪𝗔𝗥𝗥𝗜𝗢𝗥 𝗣𝗥𝗢𝗧𝗢𝗖𝗢𝗟
Hit your daily protein goal and build a streak. Every 5th victory earns a Shield protecting your streak if you miss a day. Progress through a full badge hierarchy — streak, badge score, victories, and shields all tracked in a rank modal.
🍱 𝗜𝗡𝗧𝗘𝗟𝗟𝗜𝗚𝗘𝗡𝗧 𝗠𝗘𝗔𝗟 𝗟𝗢𝗚𝗚𝗜𝗡𝗚
• 50+ Indian foods from ICMR-NIN nutritional data • Open Food Facts API for global packaged food lookup • Barcode scanner for instant macro breakdown • Fuzzy search with token scoring and brand-aware ranking • Local memory layer via AsyncStorage for offline access
🧠 𝗕𝗢𝗗𝗬 𝗛𝗔𝗖𝗞 𝗦𝗬𝗦𝗧𝗘𝗠
Psychology-backed craving decoders that identify what your body is actually signaling and redirect impulse before the decision is made.
📊 𝗔𝗗𝗔𝗣𝗧𝗜𝗩𝗘 𝗖𝗛𝗘𝗖𝗞-𝗜𝗡 𝗦𝗬𝗦𝗧𝗘𝗠
Log your weight anytime — Quasar instantly recalculates BMR, TDEE, calorie target, and macro splits. Full weight history tracked on a visual timeline.
🤖 𝗡𝗔𝗜𝗩𝗘 𝗕𝗔𝗬𝗘𝗦 𝗗𝗜𝗘𝗧𝗔𝗥𝗬 𝗜𝗡𝗧𝗘𝗟𝗟𝗜𝗚𝗘𝗡𝗖𝗘
On-device classifier trains on your behavioral history — overshoot patterns across weekends, deficit phases, and high-stress periods. Predicts your daily risk and delivers a targeted message before things go sideways.
📡 𝗢𝗙𝗙𝗟𝗜𝗡𝗘-𝗙𝗜𝗥𝗦𝗧
Firestore offline persistence keeps all data cached locally. Writes queue and sync on reconnect. 60+ curated facts to browse while you wait.
🔐 No ads. No subscriptions. No data selling. Your data stays in your private Firestore database.
Quasar is an adaptive metabolic engine for people serious about body composition. While other apps give you a static target, Quasar recalculates your BMR, TDEE, and macro splits on every weight log. Your plan evolves as your body does.
🔥 𝗙𝗢𝗨𝗥 𝗦𝗣𝗘𝗖𝗜𝗔𝗟𝗜𝗭𝗘𝗗 𝗧𝗥𝗔𝗜𝗡𝗜𝗡𝗚 𝗠𝗢𝗗𝗘𝗦
𝗧𝗵𝗲𝗿𝗺𝗶𝗰 𝗘𝗻𝗴𝗶𝗻𝗲 Calculates the exact digestion cost of every meal — Protein (25%), Carbs (8%), Fat (2%) — and credits it back to your daily budget in real time. Built on peer-reviewed TEF research by Westerterp (2004) and Acheson et al.
𝗗𝗲𝗳𝗶𝗰𝗶𝘁 𝗖𝘆𝗰𝗹𝗶𝗻𝗴 Built on the MATADOR study (Byrne et al., 2017) — cycling deficit and maintenance prevents adaptive thermogenesis and produces greater fat loss than continuous restriction.
𝗟𝗼𝗮𝗱 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 Pauses your deficit during high-stress periods, switches to maintenance, then resumes exactly where it left off.
𝗜𝗻𝗷𝘂𝗿𝘆 𝗥𝗲𝗰𝗼𝘃𝗲𝗿𝘆 50 conditions across 11 categories — fractures, sprains, surgeries, infections, chronic conditions, mental health, and more. Each with clinically-informed macro splits, BMR multipliers, and a personalized recovery message.
Includes a 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗖𝗵𝗲𝗮𝘁 𝗗𝗮𝘆: mark a cheat day, log the excess calories, and Quasar distributes precise daily reductions across your chosen recovery window — to the exact calorie. Next cheat day unlocks only after compensation is complete.
⚔️ 𝗪𝗔𝗥𝗥𝗜𝗢𝗥 𝗣𝗥𝗢𝗧𝗢𝗖𝗢𝗟
Hit your daily protein goal and build a streak. Every 5th victory earns a Shield protecting your streak if you miss a day. Progress through a full badge hierarchy — streak, badge score, victories, and shields all tracked in a rank modal.
🍱 𝗜𝗡𝗧𝗘𝗟𝗟𝗜𝗚𝗘𝗡𝗧 𝗠𝗘𝗔𝗟 𝗟𝗢𝗚𝗚𝗜𝗡𝗚
• 50+ Indian foods from ICMR-NIN nutritional data • Open Food Facts API for global packaged food lookup • Barcode scanner for instant macro breakdown • Fuzzy search with token scoring and brand-aware ranking • Local memory layer via AsyncStorage for offline access
🧠 𝗕𝗢𝗗𝗬 𝗛𝗔𝗖𝗞 𝗦𝗬𝗦𝗧𝗘𝗠
Psychology-backed craving decoders that identify what your body is actually signaling and redirect impulse before the decision is made.
📊 𝗔𝗗𝗔𝗣𝗧𝗜𝗩𝗘 𝗖𝗛𝗘𝗖𝗞-𝗜𝗡 𝗦𝗬𝗦𝗧𝗘𝗠
Log your weight anytime — Quasar instantly recalculates BMR, TDEE, calorie target, and macro splits. Full weight history tracked on a visual timeline.
🤖 𝗡𝗔𝗜𝗩𝗘 𝗕𝗔𝗬𝗘𝗦 𝗗𝗜𝗘𝗧𝗔𝗥𝗬 𝗜𝗡𝗧𝗘𝗟𝗟𝗜𝗚𝗘𝗡𝗖𝗘
On-device classifier trains on your behavioral history — overshoot patterns across weekends, deficit phases, and high-stress periods. Predicts your daily risk and delivers a targeted message before things go sideways.
📡 𝗢𝗙𝗙𝗟𝗜𝗡𝗘-𝗙𝗜𝗥𝗦𝗧
Firestore offline persistence keeps all data cached locally. Writes queue and sync on reconnect. 60+ curated facts to browse while you wait.
🔐 No ads. No subscriptions. No data selling. Your data stays in your private Firestore database.
What’s new
Version 1.1.0 · Updated August 17, 2026
AI meal logging fixed
User reviews
crazy stuff, loved itt, really helpful with my diet plan
superb execution
Alternatives to Quasar
Looking for apps like Quasar? Here are 3 similar Android apps on Google Play. The highest rated is REsimpli (4.8/5), and all 3 are free to download.
| App | Rating | Price | Installs |
|---|---|---|---|
| Quasar | – | Free | 10+ |
| Bones Coffee | 4.6 / 5 | Free | 1,000+ |
| Squint | – | Free | 100+ |
| REsimpli | 4.8 / 5 | Free | 1,000+ |