The Moonboard versus the Kilter, honestly

Walk into a decent training-focused wall in the UK and you will usually find at least one of them: the Moonboard, often tucked in a corner with a small crowd of quiet, focused people taking long rests, or the Kilter, lit up like a fruit machine with everyone cheering each other on. They are the two best-known systems boards, they look superficially similar, and they train you in genuinely different ways. If you only get time on one, it is worth knowing which.

Both are standardised boards, meaning the hold layout is the same wherever you go, problems are shared through an app, and a grade on the board roughly means the same thing in Sheffield as it does in San Diego. That is the whole appeal of a systems board, and if the idea is new to you, why train on a systems board lays out the case.

What the Moonboard is like

The Moonboard is unforgiving and proud of it. It sits at a fixed steep angle, the holds are mostly small, positive but sharp wooden and resin shapes, and the footholds are limited and deliberately poor. There is no adjustable angle. You climb what the board gives you, and what it gives you is a lot of hard pulling on small holds at a steep angle.

The result is a board that builds raw power and finger strength quickly, because there is nowhere to hide. You cannot smear your way out of a bad position or find a sneaky foot. You have to pull hard, hold tension, and move with intent. The grading is famously stiff. A grade on the Moonboard tends to feel harder than the same number elsewhere, which is humbling at first and useful once you accept it.

The Moonboard does not flatter you. It is the climbing equivalent of a coach who only tells you what you got wrong, and for a certain kind of climber that is exactly what works.

What the Kilter is like

The Kilter is built around adjustable angle and LED-lit holds. You set the wall anywhere from gently overhanging to brutally steep, and the holds light up to show you the problem. The holds themselves come in a huge range, from tiny crimps to big friendly jugs and slopers, so the board can serve a complete beginner and a hardened crusher on the same panel just by changing the angle and the problem.

That flexibility is its strength. You can warm up at a shallow angle on big holds, then crank the wall over for power work, all without leaving the board. The grading runs softer and more generous than the Moonboard, and the social, lit-up nature of it makes it a friendlier place to be. The flip side is that it is easy to coast, picking holds that are too good and angles that are too kind, and never really pushing.

A side-by-side look

Neither column is the "right" one. They are tools with different edges.

Which one suits you

If you are reasonably experienced, your fingers are conditioned, and you want a focused tool to build power and contact strength, the Moonboard is hard to beat. It does one thing and does it relentlessly. The catch is that the small, sharp holds and steep angle are demanding on fingers and shoulders, so it is not where a newer climber should be spending their sessions. Easing in without hurting yourself matters, and using a board without wrecking your fingers is essential reading before you commit.

If you want one board that can grow with you, that you can warm up on, that suits a beginner and still has plenty to offer when you are strong, the Kilter is the more sensible all-rounder. The adjustable angle alone makes it more forgiving on the body, and you can dial the difficulty so that a bad day still gives you a workout rather than a beating. The trade is that you have to bring the discipline yourself, because the board will happily let you take it easy.

A practical middle path, if your wall has both: warm up and build volume on the Kilter, then do your hardest, most focused power efforts on the Moonboard once you are fully warm and your fingers are ready.

How to actually use either one

Whichever board you end up on, the same principles make it work:

• Warm up properly first. Both boards are steep and finger-intensive, and going at them cold is how people tweak pulleys.
• Pick benchmarks. Both apps flag well-tested benchmark problems. These are the ones whose grades you can trust, which makes benchmarks, and why they matter worth understanding.
• Rest like you mean it. Power work needs long rests between attempts, not the quick turnaround you might use on easy circuits.
• Log it. A board's grades are consistent enough that tracking your sessions actually tells you something.

The honest answer

There is no winner here, only fit. The Moonboard will make you stronger faster if your body is ready for it and you have the discipline to rest hard between burns. The Kilter will serve you across a wider range of days, moods and ability levels, and is the safer place to start. Most climbers who have access to both end up using each for what it does best. If you only have one at your wall, do not lose sleep over it. The board you actually train on consistently beats the perfect board you visit twice a month.