# By Rule vs U

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.

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.

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.

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.

## The numbers

| Metric | By Rule | U |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (20 ratings)](https://appshunter.io/ios/app/by-rule/id1532845521/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/u-stat/id6760956387/reviews) |
| Number of ratings | **20** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 185 MB | 42 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Aupont](https://appshunter.io/developer/1532845523) | [Daniel Lang](https://appshunter.io/developer/1887011296) |

## What reviewers say

### By Rule

[App page](https://appshunter.io/ios/app/by-rule/id1532845521)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| By Rule Pro Monthly | $1.99 | per month |
| By Rule Standard Monthly | $6.99 | per month |
| By Rule Pro | $6.99 | per month |
| By Rule Pro Annual | $17.99 | per year |
| By Rule Pro Monthly | $19.99 | per month |
| By Rule Pro Annual | $19.99 | per year |
| By Rule Pro | $179.99 | per year |


### U

[App page](https://appshunter.io/ios/app/u-stat/id6760956387)

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

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*