Topo Bleau vs Boulder Challenge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Topo Bleau
This app helps climbers explore and organize sessions in the Fontainebleau forest. It provides detailed information on thousands of boulders, including photos, geo-referenced locations, and filtering options. Track your achievements with a built-in climbing notebook and stay updated with local news.
- Boulder discovery and detailed descriptions
- Geo-referenced boulder locations
- Filtering by boulder type, sector, and accessibility
- Photos of boulder openings
- Climbing notebook for tracking achievements
- Offline functionality (except videos)
- Local climbing news and events
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Welcome to Topo Bleau, the application dedicated to climbers in the Fontainebleau forest! Thanks to Topo Bleau, organise your climbing session: find the area that suits everyone (by type of boulder, by sector, depending on whether you are on foot, by train or by vehicle, between adults or with children...). Each area is accompanied by a detailed description to make the best choice everyday you want to climb. Topo Bleau also offers you access to nearly 30,000 boulders, including more than 4,600 geo-referenced boulders. Each one is accompanied by a photo that shows the existing openings (like our good old paper topo). Every month, new boulders are added. It's a real guide that will also tell you which are the major boulders of the forest, those that are feasible even if you are not tall, and for the hardest boulders, those that are oriented north (ideal in summer), south (ideal in winter) and even east/west (if you are more of a morning or afternoon person). Also if you only want to do slabs, overhangs or traverses, it is possible to filter. Also, for most boulders, direct links to online videos and circuits allow to save precious time in forest. 3 areas are freely provided with Topo Bleau: Cul de Chien, Rocher Canon and Paris The main extension includes georeferenced boulders in the following areas : Bas Cuvier, Cuvier Nord/Ouest/Est, Cuvier Merveille Bois Rond, Canche aux Merciers, L'Anarchodrome Gorge aux Chats, Franchard Isatis, Cuisinière, Sablons, Point de Vue, Ermitage et Druides Rocher Fin, Rocher Saint Germain, Rocher du Potala J.A. Martin, La Troche and Le Toit d'Orsay, Elephant, Maunoury, Petit Bois Roche aux Sabots, Roche aux Oiseaux, La Ségognole 95.2, Buthiers Piscine, Rocher Brûlé Le Calvaire, Roche d'Hercule, Rocher d'Avon Apremont Ouest, Buttes aux Dames, Sanglier et Brûlis Recloses, Rocher de Bouligny, Les Béorlots, Coquibus (Grandes Vallées, Montrouget et Arcades), Jean de Vigne, Rocher du Guetteur, Vallée Chaude, Rocher des Etroitures, Haut de Milly, Roche au Four, Mare à Piat Salamandre Est. Le Viaduc des Fauvettes. And also, partially georeferenced: Hautes Plaines Cuvier Rempart, Rocher de la Reine, Drei Zinnen, Apremont, Restant du Long Rocher, Vallée Casse-Pot, Le Troglodyte, les Mammouths, Pierre le Sault, Monts & Merveille. The application integrates a climbing notebook, to keep track of all your achievements. Also, all news and meetings from partners, associations, public local organism, ONF and so on, are available. And last but not least, the application works fully offline (except the videos)
Boulder Challenge
Easily create and share custom climbing boulder problems by taking a photo of the wall. Define holds, difficulty, and descriptions to document your routes or outdoor projects. Discover and rate boulders created by others, and track your climbing progress.
- Create custom boulder problems from photos
- Define hand and foot holds
- Specify difficulty and descriptive text
- Search and rate existing boulders
- Track climbed and favorite boulders
- Export data to Excel
- Follow other climbers and view news feed
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App to create and share your own boulder problems on every climbing wall / spray wall / training wall / system wall / chaos wall / boulder block by simply taking a picture and easily specifying the definition as detailed as you like. - No additional costs like many other apps. Create as many walls and boulders as you like - Search for locations / boulder walls that have already been added or add them yourself - Suitable for all artificial boulder walls and also for saving the beta of your outdoor projects - Take a picture of the wall area you want, select an image that is already stored in the app or from the gallery of your smartphone - Define the start and end of your boulder - Define hand and foot holds (optionally separately and explicitly for left / right if desired) - Optionally define fixed hold sequences by specifying numbering - Various ways of displaying the markers - Smoothly fade out markings to be able to see details "behind" the markings - General descriptive text for a boulder and also possible per hold - Optional specification of the wall angle - Specification of difficulty in Fontainebleau / Hueco V scale or without - Mark boulders that have been resetted to see directly that they are no longer on the wall - Edit, delete and clone boulders - Rate and comment boulders - Submission of individual difficulty ratings with graphical display of the difficulty distribution per boulder - Search for boulders by name, creator, difficulty from / to, rating, climbed, favorite, wall angle, resetted - Sorting of boulders by created on, climbed on, name, difficulty, number of ascents, popularity - Random boulder selection in a certain difficulty range for e.g. warm-up - Lists for your favorite and already climbed boulders - Share boulders outside of the app as an image, direct link and QR code - Display of news per location / boulder wall - Display of the difficulty distribution per location / boulder wall - Display of the locals per location / boulder wall - "Bulletin board" per location / boulder wall - Share locations / boulder walls outside of the app as direct link and QR code - Follow other users and see what they've been up to in your personal news feed - Get score points for your created boulders, climbed boulders or e. g. if one of your boulders has been rated well by others - Optional private profile if your activities should not be visible to others - Send and receive private messages - Automatically kept logbook to easily display your activities for a period of your choice - Export of all your created and climbed boulders in Microsoft Excel format for further individual evaluation Have fun!
Screenshots
Verdict
The clearest difference is price: Topo Bleau at Free against Boulder Challenge's $2.99. Topo Bleau also leads on review sentiment (80% vs 71%). Boulder Challenge's advantage is in-app purchases (none vs 1) and iOS requirement (10.3 vs 17.0). On update cadence, ads and device support 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
Topo Bleau is free to download; Boulder Challenge costs $2.99 up front. Topo Bleau sells 1 one-off in-app purchase. Boulder Challenge asks for nothing beyond the download.
Topo Bleau ships an update monthly, Boulder Challenge every 6 weeks. Both last shipped on October 24, 2026.
| Parameter | Topo Bleau | Boulder Challenge |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | — | 4.3 (23 ratings) — better |
| Positive reviews | 80.0% of reviews — better | 70.6% of reviews |
| Number of ratings | — | 23 — better |
| Update frequency | Monthly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 10.3 — better |
| Further details — not scored | ||
| Size | 427 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | Romain Dupont | Christian Fenzl |
Customer experience
Topo Bleau
Boulder Challenge
In-app purchases
Topo Bleau
- All areas$6.99
Boulder Challenge
No in-app purchases









