# Zuul Systems vs Da Buzzer

The clearest difference is rating: Da Buzzer at 5.0 against Zuul Systems's 3.9. Da Buzzer also leads on review sentiment (80% vs 68%). Zuul Systems's advantage is update cadence (weekly vs every 15 months) and ratings volume (35 vs 6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Da Buzzer holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Zuul Systems has 35 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 68% of Zuul Systems's written reviews are positive against 80% of Da Buzzer's.

Zuul Systems ships an update weekly, Da Buzzer every 15 months. The most recent releases landed on August 26, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Zuul Systems | Da Buzzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (35 ratings)](https://appshunter.io/ios/app/zuul-systems/id1438385504/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/da-buzzer/id1528230392/reviews)** |
| Number of ratings | **35** | 6 |
| Positive reviews | 68.0% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 15 months |
| Monetization | Free | Free |
| Size | 52 MB | 12 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ZUUL SYSTEMS, LLC](https://appshunter.io/developer/1426243937) | [Rahul Rahate](https://appshunter.io/developer/1492366192) |

## What reviewers say

### Zuul Systems

[App page](https://appshunter.io/ios/app/zuul-systems/id1438385504)

Grant seamless entry to your gated community for guests. This app allows residents to send digital passes, reducing wait times and enhancing security. Registered guests can easily request passes and access community amenities.

**Highlights:** Send digital guest passes, Reduce gate wait times, Improve community security, Guest pass requests, Contact integration, QR code passes, Add passes to calendar

**Features:** macOS Compatibility

**In-app purchases:** none


### Da Buzzer

[App page](https://appshunter.io/ios/app/da-buzzer/id1528230392)

This app allows you to know when visitors arrive without installing hardware. Generate a unique QR code that guests scan to send you an instant notification. It's ideal for homes and businesses, supporting multiple users and working anywhere with internet access.

**Highlights:** QR code powered doorbell, Instant visitor notifications, No hardware or batteries required, Supports multiple users, Works anywhere with internet, Customizable visitor pages

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zuul Systems free?

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

### Is Da Buzzer free?

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

### Which has better reviews, Zuul Systems or Da Buzzer?

Da Buzzer is rated higher. Zuul Systems averages 3.9 out of 5 from 35 ratings, while Da Buzzer averages 5.0 from 6 ratings.

### Do Zuul Systems or Da Buzzer have ads?

Neither Zuul Systems nor Da Buzzer shows ads.

### Which is updated more often, Zuul Systems or Da Buzzer?

Zuul Systems ships an update weekly, and Da Buzzer every 15 months. Most recently, Zuul Systems was updated on August 26, 2026 and Da Buzzer on June 5, 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.*