Arvo

Arvo is a self improvement tool. AI workout coach for gym lifters that recalculates every set in real time. 20 agents apply Kuba Method, Mentzer HIT and FST-7 logic, convert loads for exercise swaps, track MEV/MAV/MRV volume and trigger deloads.

Arvo is an AI personal trainer built for gym-based bodybuilding and powerbuilding. It runs a network of 20 specialized agents on GPT-5 reasoning models and recalculates the next set after every set you log, rather than building a plan once and leaving you to adjust alone. The stated purpose is narrow and deliberate: replicate the progression logic of named methodologies (Kuba Method, Mentzer HIT, FST-7, Y3T, Mountain Dog) with enough fidelity that lifters following those programs can trust the suggestions. The practical loop is simple. You log weight, reps, RIR and a quick note on readiness; the Load Navigator proposes the following set with its reasoning shown (rep range position, fatigue signals, phase of the mesocycle, standard load increments for the equipment). Exercise swaps come with biomechanical weight conversions, so a 100kg barbell bench press maps to roughly 45kg per hand on dumbbells or about 80kg on a machine press. Notes written in plain language are parsed for pain, fatigue and preference, then applied automatically as substitutions or conservative load choices. Volume is tracked per muscle group against MEV, MAV and MRV landmarks, and the system flags deloads when progress stalls, readiness stays low, or weekly volume exceeds MRV. The audience is lifters who already care about the numbers: intermediate and advanced gym goers, competitive bodybuilders managing mesocycles, and personal trainers who want AI-drafted plans they review before handing them to clients. Beginners are served too, but the product rewards users who log honestly. Rest timing adapts to the method and exercise type with color-coded validation instead of a fixed countdown, and the workout screen is engineered for gym conditions: wake lock, offline operation, crash recovery after every set. Progress photos, body measurements and cycle-to-cycle volume comparisons sit alongside the coaching. Against general logging apps, Arvo trades breadth of social features for depth of programming logic. It also runs inside ChatGPT for planning and review, with the mobile app handling live logging.