Run Studio | Kinoku

What it is

Run Studio reads one run the way a coach would. It stacks charts on top of each other: pace, heart rate, and elevation. They all share one zoom and one moving cursor. Pinch one chart and they all zoom together. Drag your finger and a marker shows where you were on the map. Press and hold to pick a slice of the run. The stats for that slice show up on top: average pace, average heart rate, elevation gain, distance, and time.

Tap a spot on the route line and the cursor jumps to that exact moment. This works even when your route crosses itself, like an out-and-back or a loop. Simpler apps often land on the wrong pass.

The nine charts

Below the main charts sit nine cards. Each one shows a different thing:

Peak pace curve. Your fastest steady pace for every length, from one second up to the full run. It’s the most useful chart for racers. You can read your race shape right off it.
Pace vs. heart rate. A dot for each moment, colored by time. If the dots drift one way as the run goes on, your body is working harder for the same speed. That’s a sign of fatigue.
Lap grid. One box per 100 meters, colored by how far off your average pace it was. Cool colors held the pace. Warm colors drifted off. One look shows where you ran the plan and where you slowed.
Hill chart. Your climbs, colored by how steep they were. Steep parts glow as a warning. No more guessing which hill that was.
Form ring. A round chart of how steady your steps stayed. A tight ring means steady form. A wide one means fatigue changed your stride.
Fade chart. Your heart-rate-to-pace ratio over time, with a band from your first quarter. Drift past it means your easy pace got hard.
Wind compass. Your average pace in each direction. It shows where a headwind slowed you on a loop.
Pace lane. A target band around your average pace. See how often you held it and how often you drifted off.
Wind chart. The head- or tail-wind over time. It needs the Open-Meteo weather opt-in.

Marks worth noticing

Kinoku scans each run when you open it and pins marks on the charts. It flags your peak heart rate, your fastest 1 km, 5 km, and 10 km, big pace jumps, the point where fatigue set in, hills you held for 30 seconds or more, fast recoveries where your heart rate dropped a lot, drops in step rate, and long head- or tail-wind sections.

ELITE users can add their own notes at the cursor. You pick the text and color. They save and show up next to Kinoku’s marks. Yours render as solid pins, so you can tell them apart.

Comparing two runs (ELITE)

Tap + Compare and pick another run. Its line shows up as a faint ghost on every chart. Its route shows up as a second line on the map in the accent color. The chart edges grow to fit both runs, so neither gets cut off. By default, the runs line up by time: the same moment in each, side by side.

Replay (PRO+) and video export (ELITE)

Watch the run play back, from a quarter speed up to eight times speed. The cursor slides across every chart. The map marker moves along the route in step. Pinch or drag at any point and the replay pauses, so you can take a close look.

ELITE users tap share as video to make a 1280×720 clip. For now it’s a still frame with the run’s distance, pace, time, and a small route map. Full moving playback is on the roadmap.

Smooth, fast interaction

Pinch one chart and they all zoom. Drag to move around. Press and hold to pick a range. Tap to set the cursor. Scroll up or down on a chart and the page scrolls with it. There’s no jitter when you change moves mid-drag.

Zoom in past the map’s tile limit and Kinoku switches to a tile-free view. It lets you zoom in as far as you like on the route shape. That helps when you want to study a tight turn or a short loop.

Privacy and offline

The whole screen works offline. Nothing goes to the cloud. The route, the charts, the marks, and the video all stay on your phone. The marks are worked out fresh each time you open a run. So they show the latest data. Heart rate from Health Connect can arrive a few minutes after a run ends.

Tier matrix

The whole interactive screen is free. Every chart, every card, and the marks come at FREE. PRO adds replay. ELITE adds the ghost compare, your own notes, and video export.

Feature	FREE	PRO	ELITE
All chart panes (pace + HR + elevation)	✓	✓	✓
Pinch-zoom, range-select, linked crosshair	✓	✓	✓
All 9 unique visualizations	✓	✓	✓
AI auto-annotations (view)	✓	✓	✓
Replay playback	-	✓	✓
Ghost-runner comparison	-	-	✓
User-pinned annotations	-	-	✓
MP4 video export	-	-	✓