Topo Bleau vs onecrag
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)
onecrag
This app helps climbers find and safely ascend their favorite climbing spots. It provides essential information for a secure and enjoyable climbing experience.
- Climbing safety guidance
- Favorite spot identification
- Secure ascent planning
- Location-based climbing information
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Climb in all safety in your favorites spot
Screenshots
Verdict
The clearest difference is update cadence: onecrag at every 6 days against Topo Bleau's monthly. On price, review sentiment, ads and in-app purchases 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. Topo Bleau sells 1 one-off in-app purchase and onecrag sells 34 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Topo Bleau ships an update monthly, onecrag every 6 days. The most recent releases landed on September 23, 2026 and September 7, 2026 respectively.
| Parameter | Topo Bleau | onecrag |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 80.0% of reviews | 80.0% of reviews |
| Update frequency | Monthly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 358 MB | 89 MB |
| Age rating | 4+ | 4+ |
| Developer | Romain Dupont | Ivann, Pascal, Nikola MORICE |
Customer experience
Topo Bleau
onecrag
In-app purchases
Topo Bleau
- All areas$6.99
onecrag
- La Goulandière discount$3.99
- Roche Brune discount$3.99
- Le Coup de Sabre discount$3.99
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- Le Dé discount$3.99
- Rocher de Label discount$3.99
- Lesconil discount$3.99
- Pen-Hir discount$3.99
- Pen-Hir$3.99
- Le Der discount$3.99
- La Goulandière$4.99
- Roche Brune$4.99
- Le Coup de Sabre$4.99
- Le Dé$4.99
- Rocher de Label$4.99
- Lescocil$4.99
- Le Der$4.99
- Le Mur du Temps discount$5.99
- Le Mur du Temps$6.99
- Comboire discount$7.99
- Lans-en-Vercors discount$7.99
- La Graville discount$7.99
- Les Rangs de Mars discount$7.99
- Saint Guénolé discount$7.99
- Primel discount$7.99
- Les Goudes discount$7.99
- Comboire$8.99
- Lans-en-Vercors$8.99
- La Graville$8.99
- Les Rangs de Mars$8.99
- Saint Guénolé$8.99
- Primel$8.99
- Les Goudes$8.99
- Surgy discount$14.99
- Surgy$17.99







