Comparison

BearTsumego vs Constant Challenge

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

Head to head
About

BearTsumego

This app offers daily Go puzzles to improve your stone life and death skills. Collect stickers by solving puzzles regularly and track your progress with detailed records and timed challenges. It provides detailed explanations for incorrect moves and allows you to confirm answers until satisfied.

Highlights
  • Daily Go puzzles
  • Sticker collection for motivation
  • Detailed move explanations
  • Multiple difficulty levels
  • Review mistakes feature
  • Proficiency tests
  • Progress tracking
Features
Read full description

Bear Tsumego is a tsumego app that focuses "Little and often fills the purse". Let's collect stickers by solving tsumego everyday! I hope you will enjoy and solve tsumego little by little everyday and become better when you realized it. *Please note that "Bear Tsumego" app is for users that know go rules and stones' life & death. ●○ Polite Response ●○ Have you ever not understand why your move is wrong when you solve tsumego? "In a book, I can't understand because there are only a few answers." "In an app, I can't understand because white doesn't respond to my move." In BearTsumego, I elaborate exercises so that white responds to possible moves. Also, because you can put stones as you like after ○× show on a screen, you can confirm the answer until satisfied. ●○ Main features ●○ - Free 120 tsumego exercises! - 3 difficulties: Beginner(from entry to 11k), Intermediate(from 10k to 1k), Advanced(from 1d to high grade) - Moreover there are 3 levels in every difficulty. - Stickers appear on a calendar when you solve tsumego! They motivate you to continue everyday. - "Today's Exercise": 3 random exercises appear on a top view everyday. - "Review Mistake": You can review effectively by solving the exercises that you made a mistake. - "Proficiency Test": Challenge a proficiency test (10 random exercises are set from a specific difficulty) to try your strength! - Exercises rotate and invert randomly. Tackle exercises with fresh feeling. - You will know your growth as you can see a previous record when you solve an exercise. - In addition, there is a timer to measure time to solve! ●○ Paid Features ●○ You can buy additional exercises outright! From the viewpoint of an abundant number of exercises, niceness of answers and BearTsumego's unique useful features, we offer the additional exercises at greater price than books. ●○ Terms ●○ -Terms of Use https://igokuma.com/tsumego-terms-en/ -Privacy Policy https://igokuma.com/tsumego-privacy-policy-en/ ●○ Contact ●○ kumaporo@igokuma.com

About

Constant Challenge

Features
Read full description

Constant Challenge is a training app designed to help you memorize mathematical constants like π (pi) and e while testing your skills through various challenge modes. Each constant offers the same set of game modes, allowing you to practice, compete, and improve your memory and speed. Features: - Practice Mode: Learn and memorize digits at your own pace - Time Attack Mode: Enter as many correct digits as possible within a time limit - Stage Mode: Progress through structured levels of increasing difficulty - Local Battle Mode: Competitive play possible Track your performance, challenge yourself, and aim for high scores. Perfect for students, math enthusiasts, and anyone who enjoys memory challenges. Note: This app focuses on memorization and training of mathematical constants.

Screenshots

BearTsumego4 screens
Constant Challenge4 screens

Verdict

The call

The clearest difference is update cadence: Constant Challenge at every 2 days against BearTsumego's monthly. BearTsumego's advantage is iOS requirement (12.0 vs 26.0). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. BearTsumego sells 11 one-off in-app purchases and Constant Challenge sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

BearTsumego ships an update monthly, Constant Challenge every 2 days. The most recent releases landed on October 24, 2026 and September 28, 2026 respectively.

Scorecard2 real differences · 8 level
BearTsumego versus Constant Challenge: the parameters behind the verdict, then further details
ParameterBearTsumegoConstant Challenge
PriceFreeFree
Rating4.5 (15 ratings) — better—
Positive reviews95.5% of reviews—
Number of ratings15 — better—
Update frequencyMonthlyEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better26.0
Further details — not scored
Size74 MB16 MB
Age rating4+4+
DeveloperSHOUKO SAKURAIKaname Inoue

In-app purchases

11 purchases

BearTsumego

One-time11
  • Beginner Level 1$2.99
  • Intermediate Level 1$2.99
  • Basic Life&Death Level 1$2.99
Show 8 more
  • Intermediate Pack 2 Level 1$2.99
  • Intermediate Pack 2 Level 2$2.99
  • Intermediate Level 2$2.99
  • Beginner Set Level 1-3$5.99
  • Intermediate Level 1-3 Set$5.99
  • Advanced Set Level 1-3$5.99
  • Basic Life&Death Set$5.99
  • Intermediate Pack2 Set$5.99
3 purchases

Constant Challenge

One-time3
  • Unlock the Square Root of 2 (√2)$0.99
  • Unlock the Golden Ratio (φ)$0.99
  • Unlock the Euler–Mascheroni (γ)$0.99

Questions

Is BearTsumego free?
BearTsumego is free to download, with in-app purchases available.
Is Constant Challenge free?
Constant Challenge is free to download, with in-app purchases available.
Do BearTsumego or Constant Challenge have ads?
Neither BearTsumego nor Constant Challenge shows ads.
Which is updated more often, BearTsumego or Constant Challenge?
BearTsumego ships an update monthly, and Constant Challenge every 2 days. Most recently, BearTsumego was updated on October 24, 2026 and Constant Challenge on September 28, 2026.

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