Comparison

By Rule vs U

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

Head to head
About

By Rule

Master NCAA basketball rules with this AI-powered study tool. Features flashcards, quizzes, audio rules, video clips, and instant AI interpretations to help officials, coaches, and players learn and track their progress.

Highlights
  • AI-powered study companion
  • Flashcards and quizzes
  • Audio rules and video clips
  • Instant AI rules interpretations
  • Progress tracking and analytics
  • Real-game scenarios
Read full description

By Rule - NCAA Basketball Rules Study & Quiz The #1 app for basketball officials, coaches, players, and fans. Learn NCAA rules using this AI-powered study companion. Optimize Studies: Dive into rules with flashcards, quizzes, and a learning module Learn Anytime: Audio rules, video clips, and real-game scenarios keep you sharp on the go Manu AI: Get instant rules interpretations from your pocket assistant Track Progress: Analytics pinpoint strengths and gaps to boost your confidence. Study Like a Pro 1000+ flashcards, questions covering men's & women's rules Smart notes with tagging and advanced search Real-game scenarios and video examples Quick-reference PDF with highlighting Why By Rule? Whether you’re a rookie or a seasoned pro, By Rule is a companion designed to grow with you. It’s simple, fast, and packed with hundreds of flashcards, questions and rules learning content—perfect for anyone serious about the game. What Officials Are Saying "Finally, an app that actually helps me learn the rules. The audio feature is a game-changer for learning on the road." - Certified NCAA Official Premium Features: Men's & Women's Rules Information Rules Center Quick Start Learning Module Complete Audio Rules Library Video Learning Library AI Rules Assistant (Manu) Dynamic Study Custom Study Notifications Daily Quiz Notes Advanced Analytics Dashboard Max Cards Stacks Spotlight Rules Monthly: $19.99 | Annual: $179.99 Subscriptions auto-renew unless canceled 24 hours before the period ends. Manage via App Store settings. Unused trial time forfeits upon purchase. Links: Terms: https://byruleterms.web.app Privacy: https://byruleprivacypolicy.web.app Contact: https://byruleapp.com | @byruleapp

About

U

Track detailed statistics for Ultimate Frisbee games, including goals, assists, turns, and playing time. It also functions as a scoreboard and game timer with cap features. All data is saved locally, with no ads or subscriptions required.

Highlights
  • Track goals, assists, and turns
  • Monitor playing time and time of possession
  • Import teams from USA Ultimate
  • Gender ratio tracking
  • Game timeline of events
  • Scoreboard and game timer with soft/hard cap
Read full description

Track stats for your Ultimate Frisbee games. The standard stats like goals, assists and turns are tracked in addition to playing time, time of possession, and detailed insights per player. Other features include importing a team from USA Ultimate, gender ratio tracking, and a game timeline of events. Don't want stats? You can easily use this as a scoreboard and game timer with soft cap / hard cap built in. All data saved locally (with option to share), no ads, no subscription, no sign-up needed. See https://u-stat.app for more info.

Screenshots

By Rule4 screens
U4 screens

Verdict

The call

The clearest difference is in-app purchases: U at none against By Rule's 7. U also leads on iOS requirement (16.4 vs 18.0). By Rule's advantage is ratings volume (20 vs 2). On price, rating, review sentiment and update cadence 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. By Rule sells 7 in-app purchases, starting at $1.99 per month. U asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for By Rule against 5.0 for U. That said, the two scores are not equally well evidenced: By Rule has 20 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

By Rule ships an update every 3 weeks, U every 2 weeks. The most recent releases landed on June 5, 2026 and September 14, 2026 respectively.

Scorecard4 real differences · 6 level
By Rule versus U: the parameters behind the verdict, then further details
ParameterBy RuleU
PriceFreeFree
Rating5.0 (20 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings20 — better2
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPad — better
Requires iOS18.016.4 — better
Further details — not scored
Size185 MB42 MB
Age rating4+4+
DeveloperDaniel AupontDaniel Lang

Customer experience

By Rule

All ratings20 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews14 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

U

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

7 purchases

By Rule

Subscriptions7
  • By Rule Pro Monthly$1.991 Month
  • By Rule Standard Monthly$6.991 Month
  • By Rule Pro$6.991 Month
Show 4 more
  • By Rule Pro Annual$17.991 Year
  • By Rule Pro Monthly$19.991 Month
  • By Rule Pro Annual$19.991 Year
  • By Rule Pro$179.991 Year
None

U

No in-app purchases

Questions

Is By Rule free?
By Rule is free to download, with in-app purchases available.
Is U free?
U is free to download, with no in-app purchases.
Which has better reviews, By Rule or U?
By Rule and U are both rated 5.0 out of 5 on the App Store, from 20 and 2 ratings respectively.
Do By Rule or U have ads?
Neither By Rule nor U shows ads.
Which is updated more often, By Rule or U?
By Rule ships an update every 3 weeks, and U every 2 weeks. Most recently, By Rule was updated on June 5, 2026 and U on September 14, 2026.

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