Boulder Challenge vs Spray
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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!
Spray
Log and organize climbing routes on your spray wall. Save problems, track your sends, and monitor progress over time. Features include creating routes by selecting holds and organizing them into sets.
- Save and organize climbing problems
- Log successful sends
- Store notes on problems
- Monitor session progress
- Create problems by selecting holds
- Organize problems into sets
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Spray is the perfect compannion for your home/gym spray wall. Use it to save and organize problems, log sends of created problems, store notes and monitor your sessions through the weeks, months and years. HOW IT WORKS Select an image of your spray wall. Create problems by selecting holds. Create sets to keep all your problems organized just the way you want. Mark problems as sent after you do them, to get an overview of your Sessions. Use the search functionality to find problems in your library. And much more. If you have any questions, notes, feedback, or you just want someont to talk to feel free to contact me at: lukaspaulhimml@gmail.com I hope you enjoy! :)
Screenshots
Verdict
The clearest difference is review sentiment: Boulder Challenge at 71% against Spray's 0%. Boulder Challenge also leads on ratings volume (23 vs 2) and iOS requirement (10.3 vs 17.0). Spray's advantage is rating (5.0 vs 4.3) and update cadence (every 9 days vs every 6 weeks). On ads, in-app purchases, monetization model 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
Boulder Challenge costs $2.99 and Spray $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Spray holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Boulder Challenge has 23 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 71% of Boulder Challenge's written reviews are positive against 0% of Spray's, so the app with the better star average is not the one people write more warmly about.
Boulder Challenge ships an update every 6 weeks, Spray every 9 days. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.
| Parameter | Boulder Challenge | Spray |
|---|---|---|
| Price | $2.99 | $0.99 — better |
| Rating | 4.3 (23 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 70.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 23 — better | 2 |
| Update frequency | Every 6 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.3 — better | 17.0 |
| Further details — not scored | ||
| Size | 79 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Christian Fenzl | LUKAS HIMML |
Customer experience
Boulder Challenge
Spray
In-app purchases
Boulder Challenge
No in-app purchases
Spray
No in-app purchases
Questions
Is Boulder Challenge free?
Is Spray free?
Which has better reviews, Boulder Challenge or Spray?
Do Boulder Challenge or Spray have ads?
Which is updated more often, Boulder Challenge or Spray?
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