Comparison

Tokyo Map Puzzle 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

Tokyo Map Puzzle

Learn the Tokyo map through an engaging jigsaw puzzle experience. This educational game offers various modes to test your knowledge and improve your geography skills. Compete globally, collect panels, and sharpen your mind.

Highlights
  • Jigsaw puzzle map learning
  • Multiple game modes (training, basic, expert)
  • Global player rankings
  • Collectible picture panels
  • Assist function for guidance
Features
Read full description

This is an educational game that allows you to learn the Tokyo map as if you play a jigsaw puzzle produced by Digital Gene. This game is designed to be simple yet fun to play. Not only people who like the map, but also who are not good at geography can enjoy playing it. The app is best suited for people who want to learn the Tokyo map or students who want to get ready for the exams. Or why don't you try this game to stay sharp during your spare time? You can improve your knowledge as you play the game aiming for the best time or compete against players from all over the world. You can also collect picture panels when you satisfy certain conditions. So do your best to get all of them. There are various modes available, including a [training] mode with the state names and boundaries, a [basic] mode testing only state names, and an [expert] mode without hints. When you're stuck on finding the location of a municipalities, use the [Assist] function. It will help you to navigate the correct location without hassling yourself. However you will be added a 30 seconds penalty when you use the [assist] function. If you want to achieve a higher ranking, it'd better not to use this function.

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

Tokyo Map Puzzle4 screens
Constant Challenge4 screens

Verdict

The call

The clearest difference is in-app purchases: Tokyo Map Puzzle at none against Constant Challenge's 3. Tokyo Map Puzzle also leads on iOS requirement (13.0 vs 26.0). Constant Challenge's advantage is ads (none vs shown) and update cadence (every 2 days vs every 5 months). On price 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. Constant Challenge sells 3 one-off in-app purchases. Tokyo Map Puzzle asks for nothing beyond the download.

UpkeepUpdate frequency

Tokyo Map Puzzle ships an update every 5 months, Constant Challenge every 2 days. The most recent releases landed on October 18, 2026 and September 28, 2026 respectively.

Scorecard4 real differences · 6 level
Tokyo Map Puzzle versus Constant Challenge: the parameters behind the verdict, then further details
ParameterTokyo Map PuzzleConstant Challenge
PriceFreeFree
Rating4.8 (5 ratings) — better—
Positive reviews87.3% of reviews—
Number of ratings5 — better—
Update frequencyEvery 5 monthsEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better26.0
Further details — not scored
Size8 MB16 MB
Age rating4+4+
DeveloperPlus Inc. (Japan)Kaname Inoue

In-app purchases

None

Tokyo Map Puzzle

No in-app purchases

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 Tokyo Map Puzzle free?
Tokyo Map Puzzle is free to download, with no in-app purchases.
Is Constant Challenge free?
Constant Challenge is free to download, with in-app purchases available.
Do Tokyo Map Puzzle or Constant Challenge have ads?
Tokyo Map Puzzle shows ads; Constant Challenge does not.
Which is updated more often, Tokyo Map Puzzle or Constant Challenge?
Tokyo Map Puzzle ships an update every 5 months, and Constant Challenge every 2 days. Most recently, Tokyo Map Puzzle was updated on October 18, 2026 and Constant Challenge on September 28, 2026.

Other comparisons