# Web PKI vs ZipTalk

The clearest difference is in-app purchases: Web PKI at none against ZipTalk's 5. Web PKI also leads on device support (3 vs 1). ZipTalk's advantage is update cadence (every 3 days vs every 2 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. ZipTalk sells 5 in-app purchases, starting at $57.90 per month. Web PKI asks for nothing beyond the download.

Web PKI ships an update every 2 months, ZipTalk every 3 days. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Web PKI | ZipTalk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (4 ratings)](https://appshunter.io/ios/app/web-pki/id1390701957/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 31 MB | 58 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | +4 | 4+ |
| Developer | [Lacuna Software](https://appshunter.io/developer/1390701956) | [ZipTalk](https://appshunter.io/developer/6792141838) |

## What reviewers say

### Web PKI

[App page](https://appshunter.io/ios/app/web-pki/id1390701957)

Perform digital signatures using certificates from your mobile device on compatible websites and applications. Securely authenticate documents and transactions on the go.

**Highlights:** Digital signatures with mobile certificates, Compatibility with websites, Compatibility with applications, Secure authentication

**Features:** Vision Pro support

**In-app purchases:** none


### ZipTalk

[App page](https://appshunter.io/ios/app/ziptalk-voice-notes-to-text/id6792141836)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZipTalk Starter | $57.90 | per month |
| ZipTalk Basic | $85.90 | per month |
| ZipTalk Pro | $128.99 | per month |
| ZipTalk Advanced | $289.00 | per month |
| ZipTalk Enterprise | $579.00 | per month |


## Frequently asked questions

### Is Web PKI free?

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

### Is ZipTalk free?

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

### Do Web PKI or ZipTalk have ads?

Neither Web PKI nor ZipTalk shows ads.

### Which is updated more often, Web PKI or ZipTalk?

Web PKI ships an update every 2 months, and ZipTalk every 3 days. Most recently, Web PKI was updated on October 29, 2026 and ZipTalk on October 31, 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.*