# Protokoller vs ShieldDoc

Protokoller and ShieldDoc are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Protokoller ships an update weekly, ShieldDoc every 6 days. Both last shipped on September 30, 2026.

## The numbers

| Metric | Protokoller | ShieldDoc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Size | 13 MB | 53 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kathrin Dammeier](https://appshunter.io/developer/1883475343) | [Scilt Solutions GmbH](https://appshunter.io/developer/1896613743) |

## What reviewers say

### Protokoller

[App page](https://appshunter.io/ios/app/protokoller/id6760252600)

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

**In-app purchases:** none


### ShieldDoc

[App page](https://appshunter.io/ios/app/shielddoc/id6768891743)

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

**In-app purchases:** none


## Frequently asked questions

### Is Protokoller free?

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

### Is ShieldDoc free?

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

### Do Protokoller or ShieldDoc have ads?

Neither Protokoller nor ShieldDoc shows ads.

### Which is updated more often, Protokoller or ShieldDoc?

Protokoller ships an update weekly, and ShieldDoc every 6 days. Most recently, Protokoller was updated on September 30, 2026 and ShieldDoc 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.*