RefineSimple: Strength Log

Training plan that adapts

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

New in 1.6: your coach suggests changes as cards, and you decide. Plus a coach recap after every session, a Plan tab, your recovery effect and iPhone Duo support. For lifters who understand RIR, mesocycles and deloads, and want a plan that reacts to HRV and sleep instead of grinding on regardless. Every day, RefineSimple picks the session from your training week that fits your readiness. RefineSimple is the strength app for people who take training seriously. YOUR RECOVERY DECIDES THE DAY Every morning you get a readiness score you can follow, built from HRV, sleep, resting heart rate and your training load. No black box, just a transparent formula. When recovery is low, the app suggests less volume today. When it's high, you go in with confidence. A COACH WITH A MEMORY The coach knows your plan, your readiness and your recent sets. It suggests changes as cards, such as swapping an exercise when something hurts or moving a session. You accept or decline, and you can undo anything. After every session you get a recap with your numbers. What you tell it, it remembers, and it checks in later. Calm, honest, no motivational slogans. SEE WHAT RECOVERY DOES FOR YOU History shows your block progress for each main lift and your recovery effect: how much more you perform on recovered days than on tired ones. From your own data, not from a study. A PLAN THAT ADAPTS Mesocycle programming with progression and deload, exercise rotation, exercise swaps and a length you choose (4–10 weeks). The Plan tab shows every week with a status per session. SERIOUS TRACKING Pre-filled sets with weight, reps and RIR, adjusted to your readiness. Volume per muscle against MEV–MAV ranges, automatic PR detection via e1RM, rest timer with Live Activity. MADE FOR IPHONE DUO Half open on the bench: a big rest timer on top, input below. Fully open: your set table on the left, on the right why the app suggests this set. YOUR DATA HRV, sleep and resting heart rate come from Apple Health. You don't need an Apple Watch to get started. No nutrition tracking, no social feed. Adapts. Explains itself. You decide. Subscription: RefineSimple Pro, monthly or yearly, with a free trial. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period in your App Store settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.iubenda.com/privacy-policy/97457550

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This version: – Coach 2.0: suggests plan changes as cards (swap exercises, move sessions, set targets, deload). Accept or decline, undo anytime. – Coach recap after every session: analysis, result, takeaway, with your numbers compared to the last matching session. – The coach remembers what you tell it, checks in a few days later and reaches out when you miss a session. – New Plan tab: your mesocycle with status per session. – New History: block progress and your recovery effect. How much more you perform on recovered days, from your own data. – iPhone Duo: half-open bench mode, fully open with set table plus "Why this suggestion". – New Liquid Glass design. – Fixed starting weights derived from related exercises, plus many small improvements. Questions or ideas? Profile → Feedback. Built by one person, not a team.

The developer, Nathan Seefelder, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Health & Fitness
    • Purchases
    • Contact Info
    • User Content
    • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
Nathan Seefelder
Size
94.4 MB
Category
Health & Fitness
Compatibility
Requires iOS 17.6 or later.
  • iPhone
    Requires iOS 17.6 or later.
  • Mac
    Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.3 or later.
Languages
English and German
Age Rating
9+
In-App Purchases
Yes
Copyright
© 2026 Nathan Seefelder