Mesos · for intermediate–advanced lifters
The mesocycle programmer
that shows its math.
Native iOS + Android. It builds a real MEV→MRV block per muscle, adjusts volume from last week's logs, schedules deloads — and shows you the rule behind every set it changes.
Get Mesos — free to log ↓iOS & Android · Pro 7-day free trial
This is the whole product in one screen — every volume change tied to a plain-language rule, not a black box. In the app, the rule sits right on each line; nothing is hidden behind a tap.
Hevy and Strong log your sets. RP knows the science but lives in a $34.99/mo web app. Mesos is the native app that programs the whole block at logger price — and shows the rule behind every set it adds.
Every option leaves a gap
Start the block at one-third the price.
Logging is free forever. Upgrade to Pro when you want Mesos to plan the mesocycle, autoregulate it from your logs — and show its work every week.
Now rolling out on the App Store and Google Play — newest builds may still be in store review.
Pro $9.99/mo · $69.99/yr with a 7-day free trial — vs RP's $299.99/yr. Logging stays free.
Built solo. Founder reads every reply — hasegi.cs@gmail.com.
What it is
- Transparent: every adjustment shows its rule
- MEV→MRV volume landmarks, per muscle
- Native, fast, one-handed, offline
- A free logger you can use forever
What it isn't
- Not "scientifically optimal" — just honest and convenient
- HRV/sleep are an optional nudge, never override your plan
- Not a generic AI chatbot bolted onto a tracker
- Not $35/mo