SENDOOne-tap logging
A grade pad sized for chalky thumbs. Tap the grade, feel the haptic, get back on the wall. Flash, send, or attempt — one gesture each.
Quick loggerFor indoor climbers · V0 to V17Log the send.
Log the send.
Stay on the wall.
SENDO is a fast, reset-proof logger for bouldering. One tap per send, chalk-proof buttons, and analytics that actually understand grades — built for the gym, not the couch.
The instrument
Everything a session needs. Nothing it doesn’t.
SENDO is an instrument for the wall that happens to be gorgeous — near-monochrome chrome, one electric accent, and your data carrying all the color.
Offline-first
Every ascent lands in a local database first. Concrete walls and basement gyms can kill your signal — they can’t kill your log.
Local SQLiteEvery grade system
V-scale, Fontainebleau, Japanese kyu/dan — log in whatever your gym sets in, and SENDO normalizes across all of them.
V · Font · 級Honest analytics
Grade pyramid, volume trends, hardest sends, style breakdowns by move tag. Numbers an athlete can train against.
ProgressReset-proof history
Routes get stripped every few weeks — your record doesn’t. Sessions, calendars, and a yearly heatmap of every visit.
HistoryLive gym presence
See who’s at the wall right now — symmetric and opt-in, so you’re only visible to people you can see. Find your crew, skip the queue.
DiscoverProgress
Your pyramid, in living color.
The chrome stays granite-neutral so your climbing carries the color. Watch the base widen, the peak climb, and the plateaus show themselves.
0Sends logged
0Sessions
0Hardest · V
V8
3
V7
11
V6
27
V5
52
V4
89
V3
134
V2
168
Season pyramid · all gyms · 2026
Grade systems
Same boulder. Three languages.
Your home gym sets in kyu, your trip gym in Font, your friends talk V-grades. SENDO logs in the local system and normalizes everything underneath.
V5
V-scale · Hueco
Offline-first
Concrete kills signal.SENDO doesn’t care.
Every tap writes to a local database on your phone — instantly, every time. When you surface from the basement gym, the sync queue drains in the background. No spinners, no lost sends, no “retry” buttons mid-session.
signal0 bars
local dbwriting ✓
this session14 ascents · V3–V6
sync queue14 journaled
upload▸ when you surface
History · Discover
A year on the wall, at a glance.
Every visit lands on your heatmap. Every gym shows who’s climbing right now — symmetric, opt-in, and off by default.
Activity heatmap
Six months of sessions. Every day on the wall leaves a mark.
JanFebMarAprMayJun
Who’s here now
Live presence at your home gym — see your crew before you chalk up.
KTMARIJD+2
BOULDERBASE SHIBUYA — 6 climbing now
Free · iOS & Android
Chalk up. Log on.
Your next session deserves a better record than a mental note and a sore ego. Put SENDO on your phone before the next reset.