# Advanced VoIP Solutions vs Velvetel for ProSource

The clearest difference is update cadence: Velvetel for ProSource at weekly against Advanced VoIP Solutions's every 2 months. Advanced VoIP Solutions's advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Advanced VoIP Solutions ships an update every 2 months, Velvetel for ProSource weekly. The most recent releases landed on November 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Advanced VoIP Solutions | Velvetel for ProSource |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 75 MB | 55 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TC Telecom, LLC](https://appshunter.io/developer/1566506004) | [Velevetech](https://appshunter.io/developer/504499121) |

## What reviewers say

### Advanced VoIP Solutions

[App page](https://appshunter.io/ios/app/advanced-voip-solutions/id1566506002)

**In-app purchases:** none


### Velvetel for ProSource

[App page](https://appshunter.io/ios/app/velvetel-for-prosource/id6751716915)

**Features:** macOS Compatibility, Siri integration

**In-app purchases:** none


## Frequently asked questions

### Is Advanced VoIP Solutions free?

Advanced VoIP Solutions is free to download, with no in-app purchases.

### Is Velvetel for ProSource free?

Velvetel for ProSource is free to download, with no in-app purchases.

### Do Advanced VoIP Solutions or Velvetel for ProSource have ads?

Neither Advanced VoIP Solutions nor Velvetel for ProSource shows ads.

### Which is updated more often, Advanced VoIP Solutions or Velvetel for ProSource?

Advanced VoIP Solutions ships an update every 2 months, and Velvetel for ProSource weekly. Most recently, Advanced VoIP Solutions was updated on November 7, 2026 and Velvetel for ProSource on October 28, 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.*