# Web PKI vs Positive IOT

The clearest difference is iOS requirement: Positive IOT at 13.0 against Web PKI's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 25, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Web PKI | Positive IOT |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 31 MB | 46 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Lacuna Software](https://appshunter.io/developer/1390701956) | [Positive IOT](https://appshunter.io/developer/1574954233) |

## 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


### Positive IOT

[App page](https://appshunter.io/ios/app/positive-iot/id1574954231)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Web PKI free?

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

### Is Positive IOT free?

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

### Do Web PKI or Positive IOT have ads?

Neither Web PKI nor Positive IOT shows ads.

### Which is updated more often, Web PKI or Positive IOT?

Web PKI ships an update every 3 months, and Positive IOT every 3 months. Most recently, Web PKI was updated on October 25, 2026 and Positive IOT on October 2, 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.*