Welcome to Retro Flash and the Arcade Bouldering Community!

Retro Flash is the Ultimate Spray Wall App, designed with every member of the climbing community in mind!

We have created a lot of unique tools to ensure that everyone has everything they need to get the most out of their spray walls!
For example, we support symmetrical, partly symmetrical, adjustable and private walls!

Set all kinds of problems on your wall, like circuits or even competition boulders!

With our wall upgrades, we upgrade your walls to the next level, opening up a lot of new possibilities!
Now, you can even upgrade your walls by yourself!!

Retro Flash supports the Fontainebleau, Dankyu and Hueco grading systems.
You can also define your own grading systems or even deactivate grading!

Download Retro Flash now and become a part of our growing community!

What’s New

Version 1.0.24

- Filter for favorite Boulders
- Indicator for Boulders you have sent
- Updated angle selector
- Longer Boulder descriptions

Ratings and Reviews

4.6 out of 5
64 Ratings

64 Ratings

thinkinboutplastic ,

Great with some navigating

The app definitely has a learning curve, but the team is incredibly responsive with tips and guidance. So far it’s a small community of people setting each other’s walls but it’s tons of fun. And for free, what more could you really ask for?

Amanderflander ,

Every home wall owner MUST HAVE!

This app is so fun. Absolutely provided the sense of climbing community I’ve been missing from my climbing gym being closed. Problems/boulders set by other users kept my home wall from ever feeling stale.

KOD Feeder ,

Best Home Wall Problem Setting App

The app is easy to use. I was able to quickly download the app and set multiple problems all whilst sitting on the porcelain throne.

The app even got recommendations from a similar apps developer (how I found it)

The small things can be appreciated too like the very retro themed menu.

Yeah dude just get this app it’s definitely what you’re looking for if you searched “home climbing, route setting, home route setting, etc.”

App Privacy

The developer, Arcade Bouldering UG (haftungsbeschrnkt), indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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