# SipSync Calls vs Nuuki

The clearest difference is in-app purchases: SipSync Calls at none against Nuuki's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Nuuki sells 2 in-app purchases, starting at $3.99 per 7 days. SipSync Calls asks for nothing beyond the download.

SipSync Calls ships an update every 6 days, Nuuki every 4 days. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | SipSync Calls | Nuuki |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 4 days** |
| Size | 82 MB | 29 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [tanju yayak](https://appshunter.io/developer/898543604) | [Petar Perkovski](https://appshunter.io/developer/1003670032) |

## What reviewers say

### SipSync Calls

[App page](https://appshunter.io/ios/app/sipsync-calls/id6742335994)

**Features:** macOS Compatibility

**In-app purchases:** none


### Nuuki

[App page](https://appshunter.io/ios/app/nuuki-fun-sharing/id6745727175)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $3.99 | per 7 days |
| Annual Access | $49.99 | per year |


## Frequently asked questions

### Is SipSync Calls free?

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

### Is Nuuki free?

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

### Do SipSync Calls or Nuuki have ads?

Neither SipSync Calls nor Nuuki shows ads.

### Which is updated more often, SipSync Calls or Nuuki?

SipSync Calls ships an update every 6 days, and Nuuki every 4 days. Most recently, SipSync Calls was updated on September 29, 2026 and Nuuki on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*