# Smart vs Kuil

The clearest difference is in-app purchases: Smart at none against Kuil's 8. Smart also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Kuil sells 8 in-app purchases, starting at $4.99 per 7 days. Smart asks for nothing beyond the download.

Smart ships an update every 3 weeks, Kuil every 2 weeks. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Smart | Kuil |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/smart-sip-phone/id6480208700/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 34 MB | 10 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [EDNT GmbH](https://appshunter.io/developer/975507681) | [Aziz Mallek](https://appshunter.io/developer/1886748176) |

## What reviewers say

### Smart

[App page](https://appshunter.io/ios/app/smart-sip-phone/id6480208700)

This SIP client connects to various telephone systems, offering call management features like hold, mute, and loudspeaker. It includes a phone book, call history, and customizable codecs for efficient communication on the go.

**Highlights:** Simple setup, IPv4 and IPv6 support, Call hold, mute, and loudspeaker, Phone book and call history, Customizable codecs, Bluetooth support, Light & dark mode

**Features:** Vision Pro support

**In-app purchases:** none


### Kuil

[App page](https://appshunter.io/ios/app/kuil/id6760909131)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kuil Pro | $4.99 | per 7 days |
| Pro Weekly | $5.99 | per 7 days |
| Pro Monthly | $9.99 | per month |
| Kuil Pro | $19.99 | per month |
| Power Monthly | $19.99 | per month |
| Pro Yearly | $69.99 | per year |
| Kuil Pro | $99.99 | per year |
| Power Yearly | $149.99 | per year |


## Frequently asked questions

### Is Smart free?

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

### Is Kuil free?

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

### Do Smart or Kuil have ads?

Neither Smart nor Kuil shows ads.

### Which is updated more often, Smart or Kuil?

Smart ships an update every 3 weeks, and Kuil every 2 weeks. Most recently, Smart was updated on November 11, 2026 and Kuil on November 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.*