Topo Bleau vs Gastón
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Topo Bleau
This app helps climbers organize their sessions by finding suitable bouldering areas based on various criteria. It provides detailed descriptions, photos, and geo-referenced locations for thousands of boulders, with new ones added monthly. It also includes a climbing notebook and offline functionality.
- Find bouldering areas by type, sector, and access
- Detailed area descriptions
- 30,000+ boulders with photos
- Geo-referenced boulder locations
- Filter boulders by orientation and style
- Climbing notebook for tracking achievements
- Offline functionality
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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)
Gastón
Track your climbing sessions, analyze your progress with a unique index, and connect with a community of climbers. Share videos, rate climbs, and exchange techniques. Compete in monthly challenges.
- Track climbing sessions
- Analyze progress with Gaston Index
- Share climbing videos
- Rate climbs and exchange techniques
- Compete in monthly challenges
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Grimpe, progresse et partage avec ta communauté de bloc 1) Suis ta séance : retrouve tes blocs, les méthodes des grimpeurs et valide ta séance en un clic 2) Progresse à ton rythme: découvre ton Gaston Index, travaille tes points faibles et réalise ton plein potentiel, quelle que soit ta salle 3) Grimpe avec ta communauté : partage tes vidéos Insta, propose tes cotations et échange des méthodes avec ta salle Viens aussi te mesurer à la communauté pour tenter de remporter le défi Gaston du mois !
Screenshots
Verdict
The clearest difference is in-app purchases: Gastón at none against Topo Bleau's 3. Gastón also leads on iOS requirement (15.1 vs 17.0). Topo Bleau's advantage is review sentiment (80% vs 67%). On price, update cadence, ads and monetization model 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 3 one-off in-app purchases. Gastón asks for nothing beyond the download.
Topo Bleau ships an update every 3 weeks, Gastón monthly. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.
| Parameter | Topo Bleau | Gastón |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 80.0% of reviews — better | 66.7% of reviews |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 434 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Romain Dupont | Daniel Marques |
Customer experience
Topo Bleau
Gastón
In-app purchases
Topo Bleau
- Integrality 48h$1.99
- Viaduc des Fauvettes$3.99
- All areas$9.99
Gastón
No in-app purchases







