# Skylar vs GP UC

The clearest difference is in-app purchases: GP UC at none against Skylar's 2. GP UC also leads on iOS requirement (12.0 vs 17.0). Skylar's advantage is update cadence (every 4 months vs every 31 months). On price, ads and device support there is nothing between them.

Both are free to download. Skylar sells 2 one-off in-app purchases. GP UC asks for nothing beyond the download.

Skylar ships an update every 4 months, GP UC every 31 months. The most recent releases landed on September 30, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Skylar | GP UC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/skylar/id835813069/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 31 months |
| Monetization | Free | — |
| Size | 54 MB | 128 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BroTecs Technologies, LLC.](https://appshunter.io/developer/835813072) | [Deltapath, Inc.](https://appshunter.io/developer/1136982704) |

## What reviewers say

### Skylar

[App page](https://appshunter.io/ios/app/skylar/id835813069)

This secure, standard-based mobile VoIP softphone offers high-quality calls over various networks. It features advanced call management, multi-account support, and intelligent network sensing for a smooth user experience.

**Highlights:** Advanced security settings, Intelligent network quality sensing, HD Wideband audio, Multi-tasking support, Multiple SIP account support, Call history and management, XMPP Messaging support

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| G.729 Codec | $2.99 | one-time |
| Full Version | $4.99 | one-time |


### GP UC

[App page](https://appshunter.io/ios/app/gp-uc/id1554799489)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Skylar free?

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

### Is GP UC free?

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

### Do Skylar or GP UC have ads?

Neither Skylar nor GP UC shows ads.

### Which is updated more often, Skylar or GP UC?

Skylar ships an update every 4 months, and GP UC every 31 months. Most recently, Skylar was updated on September 30, 2026 and GP UC on September 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.*