Retro Flash vs NYC Flash
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Retro Flash
This app helps climbers maximize their spray wall training with unique tools for setting various problems and supports multiple grading systems. It fosters a community for climbers to share and improve their training.
- 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
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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!
NYC Flash
Share your bouldering projects and progress with a community of climbers. Learn from others, showcase your sends, and get inspired to improve your climbing skills.
- Share boulder projects
- Showcase climbing sends
- Learn from community
- Improve climbing skills
- Community-driven content
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This app allows us to share our boulder projects with other fellow climbers. Show how you send your projects, help others improve their climbing, learn from our community.
Screenshots
Verdict
The clearest difference is in-app purchases: NYC Flash at none against Retro Flash's 8. NYC Flash also leads on rating (5.0 vs 4.7) and update cadence (weekly vs every 3 weeks). Retro Flash's advantage is ratings volume (226 vs 12) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Retro Flash sells 8 one-off in-app purchases. NYC Flash asks for nothing beyond the download.
NYC Flash holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Retro Flash has 226 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 84% of Retro Flash's written reviews are positive against 100% of NYC Flash's.
Retro Flash ships an update every 3 weeks, NYC Flash weekly. The most recent releases landed on September 23, 2026 and September 12, 2026 respectively.
| Parameter | Retro Flash | NYC Flash |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (226 ratings) | 5.0 (12 ratings) — better |
| Positive reviews | 84.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 226 — better | 12 |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 162 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Arcade Bouldering UG (haftungsbeschrnkt) | Bora Tunca |
Customer experience
Retro Flash
NYC Flash
Bugs and requests
Retro Flash
Reported bugs
8 issues- Cannot see sends anymore
- All boulders set to unclimbed for all users
- Statistics are gone
- Won't let me reset wall
- Won't let me delete walls
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- Won't let me add a new wall on a new account
- Camera button to add a photo doesn't do anything
- Can't change the angle of the wall
Requested features
4 requests- Add a tick list of all climbs done
- Show number and distribution of grades
- Copy route feature for minor adjustments
- Ability to edit names or grades of existing boulders
NYC Flash
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Retro Flash
- Unlock Rules for Circles$4.99
- Home Wall Year Pass$4.99
- 1 Month Upgrade Pass$8.99
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- Additional Wall$9.99
- Gym Year Pass Tier 1$14.99
- Add Gym$14.99
- Gym Year Pass Tier 2$29.99
- 6 Months Upgrade Pass$44.99
NYC Flash
No in-app purchases
