# Retro Flash: Climbing — Spray Wall and Community App

> Spray wall training and community app for climbers. (iPhone/iPad app by Arcade Bouldering UG (haftungsbeschrnkt).)

- Source: https://appshunter.io/ios/app/retro-flash-climbing/id1519582483 (this page in markdown: same URL + `.md`)
- Developer: [Arcade Bouldering UG (haftungsbeschrnkt)](https://appshunter.io/developer/1519582485)
- Category: Sports, Health & Fitness
- Price: Free with in-app purchases
- Rating: 4.70/5 from 226 App Store ratings · 31 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 163 MB
- Languages: American English
- Released: 2020-12-10
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/retro-flash-climbing/id1519582483/reviews.md

## What is Retro Flash?

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!

## Key features

- Spray wall problem setting
- Supports symmetrical, partly symmetrical, adjustable, and private walls
- Circuit and competition boulder creation
- Fontainebleau, Dankyu, and Hueco grading systems
- Customizable grading systems
- Wall upgrades for new possibilities

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Additional Wall | $9.99 | one-time |
| Unlock Rules for Circles | $4.99 | one-time |
| 1 Month Upgrade Pass | $8.99 | one-time |
| 6 Months Upgrade Pass | $44.99 | one-time |
| Gym Year Pass Tier 1 | $14.99 | one-time |
| Gym Year Pass Tier 2 | $29.99 | one-time |
| Home Wall Year Pass | $4.99 | one-time |
| Add Gym | $14.99 | one-time |


## Recent user reviews (10 of 31)

All indexed reviews: https://appshunter.io/ios/app/retro-flash-climbing/id1519582483/reviews.md

### 5/5 — Thumbs Up

*2026-03-11*

Very easy and not very expensive compared to other apps that are not really much better. Intuitive and good layout, with many options for upgrades and whatnot if that’s what you’re going for. Yall should add a tick list of all the climbs you’ve done. similar to random system boards that show the number and distribution of grades for the individual. this is more for fun than anything but i think it would be nice since it’s the app i use the most for spray/limit bouldering and it would be nice to see my distribution.

### 5/5 — Extremely functional

*2026-01-10*

Needed a way to log and keep track of my spray wall boulders. This app does 3 primary things I love…
(1) allows me to document boulders 
(2) organizes the boulders with filters
(3) provides the community with the ability to use the spray wall

On top of that this is completely free to use. There are options you can pay for but they are a one time fee (NOT a subscription), love that part. I hate subscription instead of one time fees

### 1/5 — Horrid UI

*2025-11-09, version 1.1.1*

The ui is just genuinely awful to use

### 5/5 — Cool

*2025-06-24*

Cool

### 5/5 — Hee it

*2025-03-09, version 1.1.1*

Thank god I don’t have to pay

### 1/5 — From Loving to Hating the App

*2025-02-05*

Dude I loved this App. I have it for over 5 years. 
It is amazing and I have added over 250 boulders to it. 
In the last weeks it started to have massive bugs. 
First I could not see my sends anymore. 
Now all boulders are set to be unclimbed for all users. 
All our friends group cant see their sends anymore. 
All the statistics is gone. 
This happened to our group of 6 people, all experiencing the same bugs.
There is no update / nothing to solve this. 
What a pity, will look out for another app.

### 5/5 — The Best Community Spray Wall App

*2025-01-13*

This is by far the best app for users who have a home wall that many people climb on.

### 5/5 — Works perfectly for home wall setup!

*2025-01-05, version 1.1.1*

Simple but works like a charm to log your home wall climb, big up for the free app!

### 5/5 — Perfect

*2024-02-11, version 1.1.1*

I’ve used a few apps like this for my garage board and none of them match up to this one. Excellent stuff, thanks!

### 5/5 — Love it

*2024-01-28*

Great app for spray walls!!

## Frequently asked questions about Retro Flash

### What does Retro Flash do?

Retro Flash is an app designed to help climbers optimize their spray wall training. It provides tools for setting various types of climbing problems, supports different wall configurations, and integrates with popular grading systems.

### What are the key features of Retro Flash?

Key features include the ability to set circuits and competition boulders, support for symmetrical, partly symmetrical, adjustable, and private walls, and integration with Fontainebleau, Dankyu, and Hueco grading systems. Users can also define their own grading systems or deactivate grading.

### Is Retro Flash free to use?

The app is free to download and use, but it offers in-app purchases for wall upgrades that unlock new training possibilities. These upgrades allow users to enhance their spray wall experience further.

### What climbing grading systems does the app support?

Retro Flash supports the Fontainebleau, Dankyu, and Hueco grading systems. Additionally, users have the flexibility to define their own custom grading systems or choose to deactivate grading altogether if preferred.

### Who is Retro Flash for?

This app is designed for every member of the climbing community, particularly those who utilize spray walls for training. It aims to provide climbers with the tools and community support they need to get the most out of their practice.

## Version history (last 5 releases)

### 2.1.7 — 2026-07-26

Introduced annual fees for gyms and home walls to help cover the app’s ongoing operational and maintenance costs.

### 2.1.6 — 2026-06-19

fix hold rule display/selection bug
fix filter and custom grading bugs
small ui adjustment

### 2.1.5 — 2026-06-18

Now you can add your gym on your own directly from the app.

### 1.1.1 — 2023-06-21

Fixing a bug which prevented the app from starting properly.

### 1.1.0 — 2023-05-28

- Filter for sent/not sent problems on walls with variable angles
- Improve Gym Profile Management
- Add Instagram Reels as Beta Videos
- Some minor bug fixes

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## More apps by Arcade Bouldering UG (haftungsbeschrnkt)

- [Retro Tablet](https://appshunter.io/ios/app/retro-tablet/id1551790870)

All apps by Arcade Bouldering UG (haftungsbeschrnkt): https://appshunter.io/developer/1519582485

## Related topics

[arcade bouldering ug](https://appshunter.io/ios/topics/arcade-bouldering-ug) · [climbing wall](https://appshunter.io/ios/topics/climbing-wall) · [spray wall](https://appshunter.io/ios/topics/spray-wall) · [climbing wall association](https://appshunter.io/ios/topics/climbing-wall-association) · [the climbing wall](https://appshunter.io/ios/topics/the-climbing-wall) · [bulderi](https://appshunter.io/ios/topics/bulderi) · [first ascent spray wall](https://appshunter.io/ios/topics/first-ascent-spray-wall)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*