New in version 1.6
Your recovery
decides the day.
Every morning, a readiness score you can follow, built from HRV, sleep and resting heart rate. From it, the session that fits today, and a coach that knows your history.
14-day trial · iPhone with iOS 17.6+

Coach
Readiness 78. Progress today where you have room.
Transparent formula, no black box
Data from Apple Health
In English and German
Built by one lifter, solo
The principle
Adapts. Explains itself. You decide.
01
Adapts
The best version of your plan today, not plan A on repeat. Recovered means progress, tired means dosed.
02
Explains itself
Every change comes with a reason: which numbers are dragging today and what that means for your sets.
03
You decide
The app suggests, you have the final say. One tap brings back the original plan.
Readiness
A score you can actually follow.
HRV, sleep, resting heart rate and your training load become your readiness score every morning. No AI black box, just a transparent formula. When it's low, the app suggests less volume today. When it's high, you use the window. Move the sliders yourself.
Recovered
Your heavy day, with room for a progression attempt.
Tired
Fewer sets per exercise or a real rest day.
Override
One tap and you train the original plan.
Training Readiness
Solid
Coach
Progress today where you have room. No heroics needed.
Plan as scheduled.
Simplified demo. In the app, the score works with your own numbers.
Coach 2.0
A coach that remembers.
The coach knows your plan, your readiness and your recent sets. Instead of dropping advice into a chat, it suggests concrete changes as a card. You accept or decline. Calm, honest, no motivational slogans.
Suggestions as cards
Swap an exercise, move a session, set targets, deload. Accept, decline, undo anytime.
A recap after every session
Analysis, result, takeaway, with your numbers compared to the last matching session.
Memory
It remembers what you tell it, checks in a few days later and reaches out when you miss a session.

Exercise swap
Applies to all open sessions this week
A more neutral grip takes load off the front shoulder, the chest stimulus stays.
Coach recap · Upper A
- Analysis
- Bench press 4 × 6 at 90 kg, every set at RIR 2.
- Result
- +2.5 kg compared to the last Upper A.
- Takeaway
- Chest is above its target range this week. Hold next week instead of adding.
Recovery effect
See what recovery does for you.
History compares how you perform on recovered days with how you perform on tired ones. From your own data, not from a study. It turns “listen to your body” into a number.
+9.5%
Readiness 70+
−3.5%
Readiness below 55
Performance per exercise against your average, by readiness on training day
Sample values from the demo data. Your own analysis appears after 8 sessions with readiness.

Plan & tracking
Serious tracking. With a plan behind it.
Mesocycle programming with progression and deload, exercise rotation and a length you choose, from 4 to 10 weeks. The Plan tab shows every week with a status per session.
Pre-filled sets
Weight, reps and RIR, adjusted to your readiness.
Volume per muscle
Weekly sets against MEV–MAV ranges. Too little and too much, visible at once.
Honest PRs
Detected automatically via e1RM, rep PRs included.


iPhone Duo
Made for iPhone Duo.
Half open, RefineSimple becomes bench mode. Fully open, your sets sit on the left and the reason for this exact suggestion on the right.

Duo screenshots show the German interface.
Pricing
Experience it, then decide.
RefineSimple Pro unlocks readiness steering, progression and the coach. You get the full experience for 14 days, after that the subscription only runs if you stay.
Monthly
€12.99
per month
Yearly
Save 49%€79.99
per year · works out to €6.67 a month
Your first workout and your first messages to the coach work without a subscription.
Cancel anytime in the App Store.
Questions
