Training log — app 01
Every session. Every round. Logged in ten seconds.
Roundlog is the daily-driver training log for Muay Thai and boxing — pad work, bag, drilling, sparring, and the notes you’ll actually re-read before your next session. On your phone, offline, no account.
What it does
Log a session fast
Pick the type — pads, bag, technique, clinch, sparring, S&C — set the rounds, and you’re logged. Built to take ten seconds after class, not ten minutes.
Notes you’ll actually re-read
Jot what your coach corrected, what landed, what got countered. Every note stays attached to that session and stays searchable — so the lesson is findable before the next spar, not lost in a group chat.
Technique tags
Tag rounds with what you worked — teep, switch kick, jab-cross, check, sweep. Your most-drilled techniques surface automatically, so you can see where your hours are really going.
Your training, in numbers
Rounds this week, hours on the mat, sparring vs. drilling balance, time since your last rest day. The honest picture, not a vanity streak.
How it works
- 01
After training, open Roundlog and tap the session type. It remembers your gym, your usual round length, and your last setup.
- 02
Set rounds and add a quick note or two — what you drilled, what to fix. Tag the techniques if you want the breakdown later.
- 03
That’s it. Over weeks it builds an honest record of your training you can scroll back through before a grading, a fight, or just a tough week.
Not for sale yet
Roundlog is still in development.
It is built and in use, but not finished enough to put a price on. Rather than sell a rough version and patch it around you, it stays off the shelf until it earns one.
No date promised — it ships when it is good enough. Get in touch if you want to hear when it does.
Questions
When can I actually use it?+
Roundlog is in active development now and is the first Feintwork app to ship. Join early access below and you’ll be among the first in — and you’ll lock the founding price.
Where does my data live?+
On your device. Roundlog is local-first — no account, no server, no central database of your training to leak. Export a JSON backup anytime and move it between devices.
Do I need to be online?+
No. It runs entirely on your phone and works fully offline — log a session in the gym with your phone in airplane mode. Install it to your home screen and it behaves like a native app.
Is this just a notes app?+
It’s built around how fighters actually train — rounds, session types, techniques, sparring. The speed of logging and the way notes resurface is the point. A notes app makes you do all that work yourself.
The evidence
What the load nudges are built on
Roundlog doesn’t guess. The signals it surfaces come from training-load monitoring and resistance-training research — and where the science is genuinely contested, it says so instead of pretending.
Training load is read with the session-RPE method (effort × minutes), and an acute-to-chronic ratio flags sharp jumps. We present this as a monitoring guide, not a risk score — the thresholds are honestly contested in the literature.
When a hard lifting week collides with hard conditioning, Roundlog nudges you to separate them — the concurrent-training interference effect is real, though manageable with good sequencing.
▸ ▾ The evidence
- Wilson, Marín, Rhea, Wilson, Loenneke & Anderson (2012). Concurrent training: a meta-analysis examining interference of aerobic and resistance exercises. Journal of Strength and Conditioning Research, 26(8), 2293–2307. doi:10.1519/JSC.0b013e31823a3e2d ↗
After a sustained build with no easy week, it suggests a deload. Volume drives adaptation up to a recoverable ceiling, past which more sets mostly add fatigue.
▸ ▾ The evidence
- Schoenfeld, Ogborn & Krieger (2017). Dose–response relationship between weekly resistance-training volume and increases in muscle mass: a systematic review and meta-analysis. Journal of Sports Sciences, 35(11), 1073–1082. doi:10.1080/02640414.2016.1210197 ↗
Rest days and sleep aren’t lost training — they’re when adaptation happens, and sleep sharpens reaction time and accuracy.
▸ ▾ The evidence
- Mah, Mah, Kezirian & Dement (2011). The effects of sleep extension on the athletic performance of collegiate basketball players. Sleep, 34(7), 943–950. doi:10.5665/sleep.1132 ↗
Tiers mark how strong the evidence is — A (meta-analyses / RCTs), B (emerging), C (coaching practice, labelled, never dressed up as proven). The full method and bibliography live on the studio’s method page.
Roundlog · in development
Be first in the door. Lock the founding price.
Roundlog is being built now. Leave your email and you’ll get early access the day it’s ready — plus the founding lifetime price before it goes up.
Release notes only, and not often.