Comparison

BoulderBot vs Sprai

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

BoulderBot

Generate and track bouldering routes on your home climbing wall. Features procedural generation for infinite climb variations, manual creation, and progress logging. Supports various wall types and works offline.

Highlights
  • Procedural climb generation
  • Manual climb creation
  • Progress tracking and logging
  • Wall setup wizard
  • Offline functionality
  • Search and filter problems
Features
Read full description

BoulderBot is your personal bouldering Spray Wall setter, tracker and organizer. Challenge yourself and find new inspiration by using the experimental Procedural Generation algorithms, quickly creating an infinite number of new climbs on your wall! You can customize parameters like Difficulty and Length to create problems suited to your needs. The generation algorithms are experimental and under active development, but even if they don't produce perfect results, you can immediately edit the generated problems in a few seconds (which is also a great way to improve your setting skills). You can also easily create your own custom problems from scratch. Problems can be saved for tracking your progress and logging ascents, and functionality like searching, filtering and sorting is available to find problems for your training sessions. ADDING YOUR WALL An interactive wizard procedure will allow you to add your wall in the application, guiding you in specifying all required information (this procedure will take around 5 to 10 minutes): - An image of the wall (specific instructions are given to ensure the best generation results) - Attributes like height and angle - The position of the holds on your wall, and their relative difficulty rating This procedure needs to be performed only when you add a new wall or reset the current one. Once a wall is added, all other functionality (like generating problems, or creating them manually) is immediate and takes no extra set up time. An in-app help system is also available if you have any doubt about the application. The application supports Home Climbing Walls, Spray Walls, Woodys, and Training Boards. The generation algorithms work only on generally flat walls which can be pictured in a single image; highly featured walls with many different angles, corners and roof sections are not supported at the moment. NO MANDATORY INTERNET CONNECTIVITY The Application can work completely offline: you can choose to use the App without an account, making the image you select and the Boulder problems you create all stored on your device's internal storage. PROBLEM RULES The boulder problems should be climbed by starting with both hands on green "Start" holds (either one hand per hold if there are two holds, or with both hands matching the single hold). Blue "Hold" holds can be used with both hands and feet, while yellow "Foot" holds cannot be touched by hands. The problem is considered complete once you hold for a couple of seconds onto the red "End" holds (either one hand per hold if there are two holds, or with both hands matching the single hold). DISCLAIMER Climbing is an inherently dangerous activity. Climbs shown in the App are random in nature, there is no guarantee about their safety, quality or correctness, please always judge the safety of the climbs before attempting them.

About

Sprai

This app uses AI to detect climbing holds on your spraywall or homewall. Create custom climbs, track your progress with videos, and organize your training. It's designed for climbers to set, send, and analyze their routes.

Highlights
  • AI hold detection
  • Create climbs on wall photos
  • Track sends and rate climbs
  • Upload and attach climb videos
  • Browse climbs by grade/style
  • Organize training with custom lists
Read full description

Take a photo your wall. Sprai finds the holds. Start setting. No more pinching, zooming and dragging circles onto one hold at a time. Take a single photo of your spray wall or home wall, let Sprai detect the holds automatically, and tap out a boulder in seconds. SET AND SEND • AI-powered automatic hold detection • Create climbs directly on your wall photo • Browse and filter climbs by grade and style • Track your sends and projects, and rate the climbs you do • Save climbs to custom lists BETA VIDEO, BUILT IN Upload a climb video and attach it to the boulder itself. Keep the beta that actually worked, watch your own movement back, and show a friend the sequence — instead of losing all of it in your camera roll. ANY WALL, ANY SETUP • Private walls for your garage, cellar or woody • Shared access so friends can set and send on your wall • Public walls for gyms, clubs and communities Spray walls, home walls and shared training walls all work the same way. Setting, climbing, logging and video in one place, built specifically for spray wall training. Free to download — mapping your wall and setting problems costs nothing. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

BoulderBot4 screens
Sprai4 screens

Verdict

The call

The clearest difference is update cadence: Sprai at weekly against BoulderBot's every 2 months. BoulderBot's advantage is monetization model (free vs free with in-app purchases) and device support (3 vs 1). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. BoulderBot sells 3 one-off in-app purchases and Sprai sells 1 in-app purchase, starting at $34.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

BoulderBot holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 11 and 5 respectively. Written reviews split almost evenly too, at 75% and 75% positive.

UpkeepUpdate frequency

BoulderBot ships an update every 2 months, Sprai weekly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
BoulderBot versus Sprai: the parameters behind the verdict, then further details
ParameterBoulderBotSprai
PriceFreeFree
Rating4.4 (11 ratings) — better4.2 (5 ratings)
Positive reviews75.0% of reviews75.0% of reviews
Number of ratings11 — better5
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.1 — better18.0
Further details — not scored
Size68 MB36 MB
Age rating9+4+
DeveloperLuca DellanaLeon Juenemann

Customer experience

BoulderBot

All ratings11 ratings
Positive81.8%
Neutral0.0%
Negative18.2%
Written reviews8 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Sprai

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

In-app purchases

3 purchases

BoulderBot

One-time3
  • BoulderBot Pro Pass - 3 Months$7.99
  • BoulderBot Pro Pass - 1 Year$17.99
  • BoulderBot Pro$27.99
1 purchases

Sprai

Subscriptions1
  • Sprai Pro Yearly$34.991 Year

Questions

Is BoulderBot free?
BoulderBot is free to download, with in-app purchases available.
Is Sprai free?
Sprai is free to download, with in-app purchases available.
Which has better reviews, BoulderBot or Sprai?
BoulderBot is rated higher. BoulderBot averages 4.4 out of 5 from 11 ratings, while Sprai averages 4.2 from 5 ratings.
Do BoulderBot or Sprai have ads?
Neither BoulderBot nor Sprai shows ads.
Which is updated more often, BoulderBot or Sprai?
BoulderBot ships an update every 2 months, and Sprai weekly. Most recently, BoulderBot was updated on October 30, 2026 and Sprai on October 28, 2026.

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