# zRef vs Rule

The clearest difference is in-app purchases: zRef at none against Rule's 1. zRef also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0.0). Rule's advantage is update cadence (every 3 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Rule sells 1 in-app purchase, starting at $2.99 per month. zRef asks for nothing beyond the download.

zRef ships an update every 2 months, Rule every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | zRef | Rule |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (7 ratings)](https://appshunter.io/ios/app/zref/id1619561284/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 1 MB | 45 MB |
| Requires iOS | **13.0** | 15.0.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rami Sinno](https://appshunter.io/developer/1535507955) | [SEIICHI MIYAKO](https://appshunter.io/developer/6777005672) |

## What reviewers say

### zRef

[App page](https://appshunter.io/ios/app/zref/id1619561284)

This app helps referees manage sports matches by tracking time, logging goals, cautions, and ejections. It provides a timer and stopwatch for game management and generates end-of-game reports with scores and event details.

**Highlights:** Match time tracking, Goal logging, Caution and ejection tracking, Timer and stopwatch, End-of-game reports, Simple match creation

**In-app purchases:** none


### Rule

[App page](https://appshunter.io/ios/app/rule-base/id6777624808)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rule-Base Pro | $2.99 | per month |


## Frequently asked questions

### Is zRef free?

zRef is free to download, with no in-app purchases.

### Is Rule free?

Rule is free to download, with in-app purchases available.

### Do zRef or Rule have ads?

Rule shows ads; zRef does not.

### Which is updated more often, zRef or Rule?

zRef ships an update every 2 months, and Rule every 3 weeks. Most recently, zRef was updated on November 3, 2026 and Rule on October 31, 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.*