# PrivateWave Enterprise vs chainSign

The clearest difference is in-app purchases: PrivateWave Enterprise at none against chainSign's 4. PrivateWave Enterprise also leads on iOS requirement (11.0 vs 16.6). chainSign's advantage is update cadence (every 4 days vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. chainSign sells 4 in-app purchases, starting at $349.99 per month. PrivateWave Enterprise asks for nothing beyond the download.

PrivateWave Enterprise ships an update every 5 weeks, chainSign every 4 days. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | PrivateWave Enterprise | chainSign |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/privatewave-enterprise/id410825598/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 28 MB | 76 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Privatewave Italia S.r.l.](https://appshunter.io/developer/380086051) | [Demetrius Barrett](https://appshunter.io/developer/1505438305) |

## What reviewers say

### PrivateWave Enterprise

[App page](https://appshunter.io/ios/app/privatewave-enterprise/id410825598)

This app encrypts calls securely and legally using VoIP. It requires a PrivateWave server for operation and enables encrypted communication between users with the software installed. Enjoy easy, secure calls with low battery drain and bandwidth usage.

**Highlights:** End-to-end voice encryption, Signaling protection via SIP/TLS, FIPS, NIST, NSA compliant security, Low bandwidth and battery usage, Supports various IP-enabled networks, Multiple encryption algorithms

**In-app purchases:** none


### chainSign

[App page](https://appshunter.io/ios/app/chainsign/id6761083360)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Solo | $349.99 | per month |
| Practice | $699.99 | per month |
| Basic Recording | $0.99 | one-time |
| Certified Hash Record | $79.99 | one-time |


## Frequently asked questions

### Is PrivateWave Enterprise free?

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

### Is chainSign free?

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

### Do PrivateWave Enterprise or chainSign have ads?

Neither PrivateWave Enterprise nor chainSign shows ads.

### Which is updated more often, PrivateWave Enterprise or chainSign?

PrivateWave Enterprise ships an update every 5 weeks, and chainSign every 4 days. Most recently, PrivateWave Enterprise was updated on October 7, 2026 and chainSign on September 30, 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.*