# Cobb County Public Library vs EMC Security

The clearest difference is rating: EMC Security at 4.7 against Cobb County Public Library's 1.9. EMC Security also leads on review sentiment (41% vs 0%) and ratings volume (5.3K vs 72). 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.

EMC Security holds the better App Store score, 4.7 against 1.9. That said, the two scores are not equally well evidenced: EMC Security has 5.3K ratings behind it against 72, so its average is the more settled of the two. Written reviews point the same way: 0% of Cobb County Public Library's written reviews are positive against 41% of EMC Security's.

Cobb County Public Library ships an update every 3 months, EMC Security every 3 weeks. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Cobb County Public Library | EMC Security |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (72 ratings)](https://appshunter.io/ios/app/cobb-county-public-library/id1484995878/reviews) | **[4.7 (5.3K ratings)](https://appshunter.io/ios/app/emc-security/id1488170434/reviews)** |
| Number of ratings | 72 | **5.3K** |
| Positive reviews | 0.0% of reviews | **41.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 50 MB | 275 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Cobb County Government](https://appshunter.io/developer/643026620) | [EMC Security](https://appshunter.io/developer/1488170433) |

## What reviewers say

### Cobb County Public Library

[App page](https://appshunter.io/ios/app/cobb-county-public-library/id1484995878)

Manage your library account on the go. Search the catalog, renew borrowed items, and place holds on new books directly from your mobile device.

**Highlights:** Manage library account, Search catalog, Renew books, Reserve books

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

**In-app purchases:** none


### EMC Security

[App page](https://appshunter.io/ios/app/emc-security/id1488170434)

Manage your home or business security system remotely. Control your alarm, view live camera feeds, and receive real-time notifications for events. Automate lights, locks, and thermostats for enhanced convenience and peace of mind.

**Highlights:** Remote alarm arm/disarm, User code management, Real-time event notifications, Video clip storage and viewing, Live camera streaming, Smart home device integration

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and simple app
- 🔒 Reliable security service
- 👍 Easy to use keypad and app

**What reviewers complain about**

- 🐛 Constant app crashes and glitches
- 🔒 Unreliable app for arming/disarming system
- 🔒 Slow camera and video feed
- 🔒 Frequent app sign-outs

**Reported bugs**

- App not working on iPads
- Frequent app crashes and freezes
- Issues with password retrieval and biometrics

**Requested features**

- Improved camera and video quality
- More reliable app performance
- Longer video recording duration


## Frequently asked questions

### Is Cobb County Public Library free?

Cobb County Public Library is free to download, with no in-app purchases.

### Is EMC Security free?

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

### Which has better reviews, Cobb County Public Library or EMC Security?

EMC Security is rated higher. Cobb County Public Library averages 1.9 out of 5 from 72 ratings, while EMC Security averages 4.7 from 5.3K ratings.

### Do Cobb County Public Library or EMC Security have ads?

Neither Cobb County Public Library nor EMC Security shows ads.

### Which is updated more often, Cobb County Public Library or EMC Security?

Cobb County Public Library ships an update every 3 months, and EMC Security every 3 weeks. Most recently, Cobb County Public Library was updated on October 24, 2026 and EMC Security on October 26, 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.*