MainGain
Maxwell Isley Health & Fitness iPhoneiPadiPod touch
MainGain is a free Health & Fitness app for iPhone and iPad by Maxwell Isley. Rated 5.0/5 from 2 ratings. Requires iOS 17.0. Updated October 8, 2025.
- Rating
- 5.0
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 1 MB
- Age 4+
- Updated
- Oct 8
- 2025 · v1.0
Screenshots
About MainGain
MainGain - Your Maintenance Calculator Finding your maintenance calories shouldn't be complicated. MainGain removes the guesswork with a scientifically-proven 14-day tracking approach. WHAT IS MAINTENANCE? Your maintenance calories are the exact amount you need to eat to maintain your current weight. It's the foundation for any fitness goal - whether you want to bulk, cut, or recomp. WHY 14 DAYS? Your daily weight fluctuates 2-4 lbs from water, sodium, and meal timing. Traditional calculators guess based on averages. MainGain uses your actual data to find YOUR unique maintenance calories. THE SIMPLE PROCESS • Track your meals (calories & protein minimum) • Weigh yourself each morning • Let the science work for 14 days • Get your personalized maintenance calories FEATURES • Clean, distraction-free tracking • Barcode scanning for quick entry • Product search for items without barcodes • Export your data anytime (CSV/JSON) • No ads, no social features, no BS • Privacy-first: all data stays on your device PERFECT FOR • Finding your true maintenance calories • Planning bulks and cuts with precision • Anyone tired of generic TDEE calculators • People who want accurate, personalized results HOW IT WORKS MainGain uses the relationship between your calorie intake and weight changes to calculate your exact maintenance. If you ate 2,400 calories daily and lost 1 lb over 14 days, your maintenance is actually 2,650. No more guessing. PREMIUM FEATURES Try all features free for 7 days, then unlock forever for $4.99: • Barcode scanner with camera • Search millions of food products • Export data as CSV or JSON • Manual barcode entry PRIVACY PROMISE MainGain is designed with your privacy in mind. All data stays on your device. No account required, no cloud sync, no tracking. Your health data is yours alone. Start your 14-day discovery today and never guess your calories again.
App privacy
The developer, Maxwell Isley, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| MainGain | 5.0 / 5 (2 ratings) | Free | October 8, 2025 | |
| Change Your Life: LENS | 5.0 / 5 (1) | Free | Jan 26, 2026 | Compare |
| Accountability Tracker Partner | – | Free | Mar 13, 2025 | Compare |
| TDEE Calculator - Health Coach | – | Free | Apr 16, 2026 | Compare |
| The Studio Fit - Logan | 4.0 / 5 (4) | Free | Sep 8, 2026 | Compare |
| EatScan - AI Calorie Tracker | – | Free | Sep 27, 2026 | Compare |
| Evolve - Track Calories | 4.0 / 5 (3) | Free | Aug 31, 2026 | Compare |
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