# Authenticate By KDC vs ZeroAuth

Authenticate By KDC and ZeroAuth 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.

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on September 30, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Authenticate By KDC | ZeroAuth |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Size | 4 MB | 80 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kenneth Lovett](https://appshunter.io/developer/1831085892) | [Chandan Kumar Dash](https://appshunter.io/developer/1810937454) |

## What reviewers say

### Authenticate By KDC

[App page](https://appshunter.io/ios/app/authenticate-by-kdc/id6751268798)

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

**In-app purchases:** none


### ZeroAuth

[App page](https://appshunter.io/ios/app/zeroauth/id6764048764)

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

**In-app purchases:** none


## Frequently asked questions

### Is Authenticate By KDC free?

Authenticate By KDC is free to download, with no in-app purchases.

### Is ZeroAuth free?

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

### Do Authenticate By KDC or ZeroAuth have ads?

Neither Authenticate By KDC nor ZeroAuth shows ads.

### Which is updated more often, Authenticate By KDC or ZeroAuth?

Authenticate By KDC ships an update every 5 weeks, and ZeroAuth every 5 weeks. Most recently, Authenticate By KDC was updated on September 30, 2026 and ZeroAuth on September 13, 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.*