# Vesta Authenticator vs Spam Zero

The clearest difference is rating: Spam Zero at 3.1 against Vesta Authenticator's 1.0. Spam Zero also leads on review sentiment (33% vs 0%) and update cadence (every 3 days vs every 6 months). Vesta Authenticator's advantage is iOS requirement (12.0 vs 17.2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Spam Zero holds the better App Store score, 3.1 against 1.0. That said, the two scores are not equally well evidenced: Spam Zero has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Vesta Authenticator's written reviews are positive against 33% of Spam Zero's.

Vesta Authenticator ships an update every 6 months, Spam Zero every 3 days. The most recent releases landed on October 22, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Vesta Authenticator | Spam Zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/vesta-authenticator/id1589272038/reviews) | **[3.1 (18 ratings)](https://appshunter.io/ios/app/spam-zero-spam-call-blocker/id6737818516/reviews)** |
| Number of ratings | 1 | **18** |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 days** |
| Monetization | Free | Free |
| Size | 34 MB | 12 MB |
| Requires iOS | **12.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Datalogic Software, Inc.](https://appshunter.io/developer/894175898) | [Kavun, LLC](https://appshunter.io/developer/1503851293) |

## What reviewers say

### Vesta Authenticator

[App page](https://appshunter.io/ios/app/vesta-authenticator/id1589272038)

This app provides multi-factor authentication by generating unique one-time codes to verify user identity before granting access to Vesta services. It enhances security by adding an extra layer of verification.

**Highlights:** Multi-factor authentication, One-time code generation, Identity verification, Enhanced security, Access confirmation

**Features:** Vision Pro support

**In-app purchases:** none


### Spam Zero

[App page](https://appshunter.io/ios/app/spam-zero-spam-call-blocker/id6737818516)

Block unwanted spam calls with a vast database of known spammers. This privacy-focused app keeps all blocking data on your device, ensuring your calls and contacts remain private. Enjoy smart protection that distinguishes spam from important calls with an easy setup.

**Highlights:** Block 1M+ known spam numbers, Complete privacy, no data collection, Device-only call blocking, Smart protection for important calls, Automatic spam database updates, Real-time call blocking, Easy setup in minutes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vesta Authenticator free?

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

### Is Spam Zero free?

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

### Which has better reviews, Vesta Authenticator or Spam Zero?

Spam Zero is rated higher. Vesta Authenticator averages 1.0 out of 5 from 1 ratings, while Spam Zero averages 3.1 from 18 ratings.

### Do Vesta Authenticator or Spam Zero have ads?

Neither Vesta Authenticator nor Spam Zero shows ads.

### Which is updated more often, Vesta Authenticator or Spam Zero?

Vesta Authenticator ships an update every 6 months, and Spam Zero every 3 days. Most recently, Vesta Authenticator was updated on October 22, 2026 and Spam Zero on October 27, 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.*