# ProdigiSign vs Zen Passwords

The clearest difference is in-app purchases: ProdigiSign at none against Zen Passwords's 3. ProdigiSign also leads on iOS requirement (12.0 vs 17.0). Zen Passwords's advantage is update cadence (weekly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Zen Passwords sells 3 in-app purchases, starting at $2.99 per month. ProdigiSign asks for nothing beyond the download.

ProdigiSign ships an update every 3 months, Zen Passwords weekly. The most recent releases landed on October 9, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ProdigiSign | Zen Passwords |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Size | 271 MB | 68 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Prodigisign](https://appshunter.io/developer/1733593718) | [ZenProducts Technologies Pvt. Ltd.](https://appshunter.io/developer/1849997461) |

## What reviewers say

### ProdigiSign

[App page](https://appshunter.io/ios/app/prodigisign/id6670239890)

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

**In-app purchases:** none


### Zen Passwords

[App page](https://appshunter.io/ios/app/zen-passwords-secure-vault/id6761246936)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zen Premium | $2.99 | per month |
| Zen Premium | $24.99 | per year |
| Zen Premium | $69.99 | one-time |


## Frequently asked questions

### Is ProdigiSign free?

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

### Is Zen Passwords free?

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

### Do ProdigiSign or Zen Passwords have ads?

Neither ProdigiSign nor Zen Passwords shows ads.

### Which is updated more often, ProdigiSign or Zen Passwords?

ProdigiSign ships an update every 3 months, and Zen Passwords weekly. Most recently, ProdigiSign was updated on October 9, 2026 and Zen Passwords on October 28, 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.*