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Reset-proof history
Routes get stripped every few weeks — your record doesn’t. Sessions, calendars, and a yearly heatmap of every visit.
HistoryAchievements that mean it
Six discipline branches — crimps, slopers, dynamic, slab, overhang, endurance — unlock automatically from what you log. No claiming, no busywork, grade-system agnostic.
Six branchesA glossary for the wall
Crimp, drop-knee, kyu, sandbag — a built-in glossary explains the language with line-art, and long-pressing jargon anywhere in the app looks it up on the spot.
Beginner zoneProgress
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
Send cards
Every session,screenshot-ready.
Hit share on any session and SENDO builds a clean card from your real numbers — top send, the grade line, flashes, duration. No editing, no template hunting. Pick a style, pick a format, post it.
The whole app
Every send, every session, tracked.
Log a climb in a tap, watch your grade pyramid and flash rate take shape, and see a year on the wall add up. Swipe through the real thing.
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, signal or not. That’s the whole free experience: nothing to wait for, nothing to lose. Flip on optional cloud sync and your sessions back up across devices 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
cloud backup▸ optional · drains 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, on by default, off in a tap.
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 · Out now on 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.