Press kit

Meso: Hypertrophy Coach

Meso is a muscle-building training app for iPhone that writes next week from what you actually lifted. Its progression engine, Earned Volume, adds a weekly set to a muscle only when you beat last week’s performance on it; soreness, workload and joint pain can hold volume or pull it back, but never push it up. Every rule the engine follows is written out in plain language in the app, with the published research behind it. Meso ships 138 programs and 314 exercises for the gym, home and the bar park, works offline, and needs no account.

Download the press kit (icon and screenshots, ZIP) View on the App Store

Key facts

Founder: Nathan Salt, who designs and builds Meso as a solo developer in Australia
Platform: iPhone and iPad, on the App Store
Account: None. Meso is local-first: training data stays on the device and the app works offline. Training backs up to the user’s own iCloud, and to a file they can save themselves.
Engine: Earned Volume, Meso’s own progression engine. Every rule carries citations to the research, readable in the app’s Science tab.
Library: 138 programs and 314 exercises across gym, home and calisthenics
Business model: The first mesocycle is free. Meso Pro unlocks longer programs and continued training.
Contact: support@mesohypertrophy.com, the same address as Support. Put “Press” in the subject.

What makes it different

Volume is earned, not scheduled. A muscle gets one more weekly set only when its lifts beat last week. Stall and it holds; regress and it drops.
How you feel is a brake, never an accelerator. Soreness, workload and joint pain can hold or reduce volume. They can never add it.
The evidence is in the app. Each rule is explained in plain language with the papers behind it, and where an exact number is convention rather than settled evidence, the app says so.
Bodyweight training progresses too. Calisthenics and home programs advance to a harder variation when you top the rep range, and switch to load progression when you log vest weight.
Deloads come on schedule, or early when the data says so. Two weeks of falling performance across several muscles brings the deload forward.
There is nothing to sign up for. Meso works offline, has no accounts, and keeps training data on the device.