Comparison

Constellations Puzzle vs フラッシュ暗算DX

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

Head to head
About

Constellations Puzzle

Learn constellations through a fun jigsaw puzzle experience. Choose from three modes featuring different sets of constellations. Compete for the best time, collect picture panels, and use assistance features to help you learn.

Highlights
  • Learn constellations via jigsaw puzzles
  • Three distinct constellation modes
  • Timed challenges for best scores
  • Collectible picture panels
  • Assisted navigation feature
  • Global player leaderboards
Features
Read full description

An educational puzzle game produced by Digital Gene. This is an educational game that allows you to learn the constellation as if you play a jigsaw puzzle. This game is designed to be simple yet fun to play. The app is best suited for people who want to learn the constellation 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? There are three modes available: one featuring 12 constellations on the ecliptic like Aries and Libra, which are also used in astrology; one featuring the 48 constellations listed by Ptolemy, such as Orion and Cassiopeia, which appear in ancient myth; and one featuring the 88 constellations recognized by the IAU. 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. When you're stuck on finding the location, use the assisted function. It will help you to navigate the correct location without hassling yourself. Please enjoy it. (Note: Due to the nature of puzzle games, certain stars are emphasized and certain stars omitted. ) (Note: As there are no official diagrams for the lines connecting the constellations, the forms of the constellations here may differ from those in other material. )

About

フラッシュ暗算DX

This app offers a comprehensive flash calculation experience with three distinct modes catering to all skill levels. It features multi-user support, customizable practice settings, and competitive modes with national rankings. Personalize your experience with various configuration options.

Highlights
  • Multi-user support (up to 10)
  • Customizable practice mode
  • Graded certification mode (10th kyu to 10th dan)
  • Competitive survival mode
  • National rankings
  • Configurable display and input settings
Features
Read full description

本格仕様のフラッシュ暗算アプリ! 3つのモードを搭載して、初心者から上級者まで幅広く活用していただけます。 【主な機能】 ■マルチユーザー 最大10人まで登録が可能。記録も個別に管理されます。 ■練習モード ご自身の実力に合わせて、「口数」「桁数」「表示間隔」「マイナス」の有無・カンマの有無を調整できます。 (「表示間隔」は、右上のアイコンから「合計秒数」に変更することができます) ■検定モード お子様にも簡単な「10級」から、最難度の「十段」まで全20段階に対応しています。 ■競技モード 実際のフラッシュ暗算競技をモチーフにしたサバイバル形式のモードです。 ■全国ランキング 競技モードと級位&段位別の成績上位ランキングが表示されます。 ■コンフィグ プレイ中の背景色・文字色・テンキー配列など、細かなカスタマイズが可能です。 ※本アプリは「日本フラッシュ暗算協会」の公式アプリではありません 【数字フォントについて】 『かっぱ先生のそろばん教室』の「アバカスフォント」を使用させていただいております。 http://kappa88.com/

Screenshots

Constellations Puzzle4 screens
フラッシュ暗算DX4 screens

Verdict

The call

The clearest difference is review sentiment: Constellations Puzzle at 84% against フラッシュ暗算DX's 30%. Constellations Puzzle also leads on rating (4.8 vs 3.0) and ratings volume (21 vs 2). フラッシュ暗算DX's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 5 months). On price, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Constellations Puzzle holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Constellations Puzzle has 21 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 84% of Constellations Puzzle's written reviews are positive against 30% of フラッシュ暗算DX's.

UpkeepUpdate frequency

Constellations Puzzle ships an update every 5 months, フラッシュ暗算DX every 3 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard7 real differences · 3 level
Constellations Puzzle versus フラッシュ暗算DX: the parameters behind the verdict, then further details
ParameterConstellations Puzzleフラッシュ暗算DX
PriceFreeFree
Rating4.8 (21 ratings) — better3.0 (2 ratings)
Positive reviews84.4% of reviews — better30.0% of reviews
Number of ratings21 — better2
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.07.0 — better
Further details — not scored
Size14 MB39 MB
Age rating4+4+
DeveloperPlus Inc. (Japan)Satoshi Negishi

Customer experience

Constellations Puzzle

All ratings21 ratings
Positive95.2%
Neutral4.8%
Negative0.0%
Written reviews77 reviews
Positive84.4%
Neutral5.2%
Negative10.4%

フラッシュ暗算DX

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews50 reviews
Positive30.0%
Neutral24.0%
Negative46.0%

In-app purchases

None

Constellations Puzzle

No in-app purchases

None

フラッシュ暗算DX

No in-app purchases

Questions

Is Constellations Puzzle free?
Constellations Puzzle is free to download, with no in-app purchases.
Is フラッシュ暗算DX free?
フラッシュ暗算DX is free to download, with no in-app purchases.
Which has better reviews, Constellations Puzzle or フラッシュ暗算DX?
Constellations Puzzle is rated higher. Constellations Puzzle averages 4.8 out of 5 from 21 ratings, while フラッシュ暗算DX averages 3.0 from 2 ratings.
Do Constellations Puzzle or フラッシュ暗算DX have ads?
Constellations Puzzle shows ads; フラッシュ暗算DX does not.
Which is updated more often, Constellations Puzzle or フラッシュ暗算DX?
Constellations Puzzle ships an update every 5 months, and フラッシュ暗算DX every 3 weeks. Most recently, Constellations Puzzle was updated on November 1, 2026 and フラッシュ暗算DX on November 2, 2026.

Other comparisons