Frequently Asked Questions

Big Brain Barbell is a strength training and workout app for iOS that automatically generates and adapts resistance training programs based on your goals, equipment, and how your body responds to training. Whether you're looking for a weight lifting app with built-in periodization or a fitness app that adjusts to your recovery, Big Brain Barbell handles the programming so you can focus on training.

Big Brain Barbell is coming soon to the App Store. Visit the home page for the latest updates on availability.

Big Brain Barbell offers a free trial followed by a monthly auto-renewing subscription that unlocks full access to all features. Payment is handled through the App Store via your Apple ID. You can cancel anytime from your Apple ID account settings — no hoops to jump through.

Big Brain Barbell requires iOS 17 or later. It works on iPhone and iPad and is optimized for the latest devices. iCloud sync allows your data to be shared across your Apple devices.

No. Big Brain Barbell works entirely on-device with no login or account required. Your data is stored locally and optionally synced through your existing iCloud account.

Big Brain Barbell supports three program types:

Strength — Phase-based periodization (Hypertrophy → Strength → Peaking) with exercise-focused goals across 6 movement patterns.

Bodybuilding — Pure hypertrophy focus with muscle-group goals targeting 15 different muscles.

Powerbuilding — A hybrid approach combining phased exercise goals with constant muscle-building goals.

Each week, Big Brain Barbell evaluates your post-session readiness check-ins, session feedback, and performance trends to decide whether to increase volume (+10%), maintain, reduce (-10%), or prescribe a deload (50% with RPE cap). The system is conservative by design — it's quicker to reduce volume than increase it, keeping you progressing safely over the long term.

See the Adaptation System guide for full details.

Volume landmarks define the range of productive training volume for each muscle group:

MV (Maintenance Volume) — Minimum sets to maintain current muscle.

MEV (Minimum Effective Volume) — Minimum sets to stimulate growth.

MAV (Maximum Adaptive Volume) — The sweet spot for most people.

MRV (Maximum Recoverable Volume) — Most you can recover from.

Big Brain Barbell uses these to keep your training in the productive range and learns your personal landmarks over time.

Yes. Big Brain Barbell is designed to work for lifters at any level. The app uses volume landmarks and weekly adaptation to calibrate your training automatically — starting conservatively and adjusting based on how you respond. You don't need to label yourself as a beginner or advanced lifter; the system meets you where you are.

Yes — this is exactly who Big Brain Barbell is built for. The reason most people program hop is that they stall and don't know how to adjust. Big Brain Barbell handles volume and intensity adjustments automatically, and guides you through phase transitions based on your performance and readiness. You stay on one program that evolves with you, instead of restarting from scratch every few weeks.

Programs you find online are static — they don't know how you're responding. If you have a bad week, the program doesn't care. If you're crushing it, the program doesn't push harder. Big Brain Barbell is different because it adjusts every week based on your actual readiness, session feedback, and performance trends. It's a living program, not a spreadsheet.

Yes. Big Brain Barbell comes with a built-in exercise library, but you can also create custom exercises. During program creation, exercises are selected based on your available equipment. You can configure your bars, plates, dumbbells, and machines in Settings.

Yes. You can reschedule sessions to different days or skip them entirely. The adaptation system takes missed sessions into account when adjusting your next week's programming.

For each set, you log the weight and reps completed. Optionally, you can log RPE (Rate of Perceived Exertion). After each session, a check-in asks about your sleep quality, readiness, and session RPE. The app also tracks rest time between sets automatically.

All data is stored on your device. If you have iCloud enabled, it syncs through your personal iCloud account. We never have access to your data. See our Privacy Policy for details.

Data export functionality is planned for a future update. In the meantime, your data is backed up through iCloud if enabled.

Big Brain Barbell does not use usage analytics or tracking technologies. The app uses Sentry for crash and error reporting only — this helps us fix bugs and improve stability. Sentry collects technical information (device type, OS version, error details) but never your training data or personal information. See our Privacy Policy for full details.