Boolder vs NYC Flash
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Boolder
Discover bouldering routes in Fontainebleau with this comprehensive guide. Features a GPS-enabled map with topo photos to find boulders suited to your skill level across over 80 areas. Save your ascents and favorite problems, with offline access for uninterrupted exploration.
- GPS-enabled map
- Topo photos
- Over 80 bouldering areas
- Save ascents and favorites
- Offline mode
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Boolder is the perfect guide to enjoy bouldering in Fontainebleau. It's a breeze to find boulders that are suited for you thanks to the map with GPS and topo photos. More than 80 areas are available, for all levels: Franchard Isatis, Cuvier, Apremont, Rocher Canon, Cul de Chien, 95.2, La Roche aux Sabots, .... Other features: • Save your ascents and your favorite problems • Offline mode: you don’t need any internet connection to enjoy the app
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 update cadence: NYC Flash at weekly against Boolder's fortnightly. On price, rating, review sentiment and ratings volume 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Boolder against 5.0 for NYC Flash. Both are backed by a comparable volume of ratings — 26 and 12 respectively. Written reviews are what separate them: 96% of Boolder's written reviews are positive against 100% of NYC Flash's.
Boolder ships an update fortnightly, NYC Flash weekly. The most recent releases landed on September 20, 2026 and September 12, 2026 respectively.
| Parameter | Boolder | NYC Flash |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (26 ratings) | 5.0 (12 ratings) |
| Positive reviews | 96.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 26 — better | 12 |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Nicolas Mondollot | Bora Tunca |
Customer experience
Boolder
NYC Flash
In-app purchases
Boolder
No in-app purchases
NYC Flash
No in-app purchases
