Comparison

日本国憲法 vs Brain Infinity

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

Head to head
About

日本国憲法

This app provides easy access to the Japanese Constitution, both old and new. Designed for simplicity and readability on mobile devices, it offers a clean interface without ads. Users can suggest improvements to help shape its future development.

Highlights
  • Access to old and new Japanese Constitutions
  • Simple, single-screen display of articles
  • Optimized readability for mobile screens
  • Ad-free experience
  • User feedback for future development
Features
Read full description

/ 新旧憲法をポケットに \ 私たちの社会生活は憲法の上に成り立っています。 学習用はもちろん、ふと気になった時にもすぐに見られる憲法アプリができました。 ●シンプルを目指して 見出しをタップすると別の画面で条文が表示されるのではなく、同じ画面の中で条文が開くようにしました。見た目も操作もシンプルです。 ●見やすさのために 小さなスマホの画面でも見やすくするため、前文の段落の間と、条文の「項」の間には改行をひとつ多く設けています。この点は憲法の原文と異なることをご承知おきください。 ●広告のない世界 広告に視線を奪われる心配はありません。広告をなくすためにお金を払う必要もありません。これからもずっと無料で使えるアプリです。 ●みんなで叶える憲法アプリ ご要望がありましたらレビューをお寄せください。みんなの力でちょっとずつ、憲法アプリの虹を咲かせていきましょう!

About

Brain Infinity

Features
Read full description

Math, logic, memory, attention and language in about three minutes. 10-question sessions, 30 levels, 3,000 English and 3,000 Japanese questions, with a brain companion. ■ Reasoning challenges 900 four-choice puzzles in 15 formats across 5 areas. Runs of 10 at Easy, Standard or Hard clear with 5, 7 or 9 correct; 45–120 seconds per question. See guides, clues and explanations, with diagrams for some puzzles. Resume anytime. ■ Training and Action Lab Normal runs mix 7 focus, 2 review and 1 stretch questions, with fewer repeats. Hints give clues; review explains why. Up to two reports per run; offline reports retry later. Action Lab has 10 hands-on formats: numbers, patterns, memory, attention and words. Play 10 untimed puzzles at three difficulties. Progress and bests are saved. Starting and resuming attempts is free. ■ Training builds a colony Build seven colonies, each with six facilities up to Lv.10, using Lumina and Core levels from training. Open rooms, follow flagged goals and meet the crew. Restore 36 areas per colony for journals and the next colony. Command three companies, capture generators and reclaim the core within four minutes. Upgrades strengthen your side; area difficulty is fixed. Practice is free. Expeditions restore equipment without Lumina or XP. ■ Records and community Infinity ends after three mistakes or timeouts. Composite anomaly starts with 45 seconds, extended by correct answers. Rankings show this week, last week and all-time records. You join automatically; your name and new records are public. Opt out in Settings. The Community feed shares your name, bests, streak milestones and main missions. Celebrate milestones. Sharing starts on; turn on Opt out of sharing achievements in Settings to stop new posts. Published posts remain. Sharing, rankings and analytics have separate controls. No free-text posts, images or chat. ■ Review and daily goals The notebook keeps 200 misses from all modes. Filter by category and retry up to 10 pending questions for double Lumina and Core XP per answer. Reviewed entries are read-only. Normal training and challenge runs award 1 Lumina and 10 Brain Core XP per answer, right or wrong; skips, unanswered timeouts and reports do not. Daily missions cover training, reasoning and Action Lab. Finish all three for a calendar mark. Track medals, streaks and all 30 levels. Research Lab shows your Brain Core and Neural Index, an in-game indicator, not a medical or intelligence assessment. Normal questions allow 30 seconds, including time away from the app. A silver medal (80%) unlocks the next level. Bronze 60%, silver 80%, gold 100%. ■ Optional accounts and cloud saves Play without linking an account; progress stays on your device. Link Google or Apple in Settings to save progress, your name and birth year privately in the cloud and restore on another device with the same account. Birth year is not public. If both saves changed, choose one; XP and items are not combined. Purchases and ad/analytics consent are not transferred. Unlink or request account deletion in Settings. Deletion starts removing public data and holds the last cloud save and app account for 30 days before permanent deletion. Cancel with the original account during that period to restore the last cloud save. Public data and unsynced changes are not restored. ■ Display, ads and data VoiceOver, large text, high contrast, reduced motion, effect captions and three music tracks. Set reminders and sound in Settings. A banner appears at the end of Lab. A full-screen ad may appear before results, at most once per five completed runs, never while answering. The optional one-time Remove ads purchase hides both, with no renewal. Every puzzle plays without it; restore with the same store account. Questions work offline. Purchases, ads, rankings, feed, cloud/accounts, reports and analytics need a connection. Analytics runs after the age check while sharing is on; stop it in Settings. See the Privacy Policy.

Screenshots

日本国憲法4 screens
Brain Infinity4 screens

Verdict

The call

The clearest difference is update cadence: Brain Infinity at every 5 days against 日本国憲法's every 3 weeks. Brain Infinity also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases 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. 日本国憲法 sells 1 one-off in-app purchase and Brain Infinity sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

日本国憲法 ships an update every 3 weeks, Brain Infinity every 5 days. Both last shipped on October 30, 2026.

Scorecard3 real differences · 5 level
日本国憲法 versus Brain Infinity: the parameters behind the verdict, then further details
Parameter日本国憲法Brain Infinity
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size1 MB72 MB
Age rating4+4+
DeveloperMichiaki FUJIKAKEYUTA UEDA

In-app purchases

1 purchases

日本国憲法

One-time1
  • 作者に缶コーヒー代を送る$0.99
1 purchases

Brain Infinity

One-time1
  • Remove Ads$2.99

Questions

Is 日本国憲法 free?
日本国憲法 is free to download, with in-app purchases available.
Is Brain Infinity free?
Brain Infinity is free to download, with in-app purchases available.
Do 日本国憲法 or Brain Infinity have ads?
Neither 日本国憲法 nor Brain Infinity shows ads.
Which is updated more often, 日本国憲法 or Brain Infinity?
日本国憲法 ships an update every 3 weeks, and Brain Infinity every 5 days. Most recently, 日本国憲法 was updated on October 30, 2026 and Brain Infinity on October 30, 2026.

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