# Urmet CallMe Uin vs Butler Co. Fed. Library System

The clearest difference is in-app purchases: Butler Co. Fed. Library System at none against Urmet CallMe Uin's 2. Urmet CallMe Uin's advantage is rating (4.3 vs 4.0) and ratings volume (25 vs 1). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Urmet CallMe Uin sells 2 one-off in-app purchases. Butler Co. Fed. Library System asks for nothing beyond the download.

Urmet CallMe Uin holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: Urmet CallMe Uin has 25 ratings behind it against 1, so its average is the more settled of the two.

Urmet CallMe Uin ships an update every 2 months, Butler Co. Fed. Library System every 5 weeks. The most recent releases landed on November 10, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Urmet CallMe Uin | Butler Co. Fed. Library System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (25 ratings)](https://appshunter.io/ios/app/urmet-callme-uin/id1669264793/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/butler-co-fed-library-system/id6739711544/reviews) |
| Number of ratings | **25** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 114 MB | 50 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [URMET SpA](https://appshunter.io/developer/380918208) | [Butler Co. Fed. Library System](https://appshunter.io/developer/1786655593) |

## What reviewers say

### Urmet CallMe Uin

[App page](https://appshunter.io/ios/app/urmet-callme-uin/id1669264793)

Receive calls from your video door phone on your mobile device. Answer remotely, unlock pedestrian access, and open doors with a simple gesture. Create and share temporary or scheduled door opening codes for added convenience and security.

**Highlights:** Receive video door phone calls remotely, Unlock pedestrian access, Open doors with smartphone gesture, Create temporary/scheduled door opening codes, Share access codes via QR code or numeric format, Install on multiple devices for family assistance

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Telephone fallback | $12.99 | one-time |
| IPerCloud & telephone fallback | $24.99 | one-time |


### Butler Co. Fed. Library System

[App page](https://appshunter.io/ios/app/butler-co-fed-library-system/id6739711544)

Manage your library account, search the catalog, and download eBooks and audiobooks. Place holds, renew materials, and find library hours and directions for the Butler County Federated Library System.

**Highlights:** Catalog search, Account management, Download eBooks and audiobooks, Place holds, Renew materials, Library hours and directions

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

**In-app purchases:** none


## Frequently asked questions

### Is Urmet CallMe Uin free?

Urmet CallMe Uin is free to download, with in-app purchases available.

### Is Butler Co. Fed. Library System free?

Butler Co. Fed. Library System is free to download, with no in-app purchases.

### Which has better reviews, Urmet CallMe Uin or Butler Co. Fed. Library System?

Urmet CallMe Uin is rated higher. Urmet CallMe Uin averages 4.3 out of 5 from 25 ratings, while Butler Co. Fed. Library System averages 4.0 from 1 ratings.

### Do Urmet CallMe Uin or Butler Co. Fed. Library System have ads?

Neither Urmet CallMe Uin nor Butler Co. Fed. Library System shows ads.

### Which is updated more often, Urmet CallMe Uin or Butler Co. Fed. Library System?

Urmet CallMe Uin ships an update every 2 months, and Butler Co. Fed. Library System every 5 weeks. Most recently, Urmet CallMe Uin was updated on November 10, 2026 and Butler Co. Fed. Library System on November 4, 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.*