# Authnull Authenticator vs Trevo

The clearest difference is update cadence: Trevo at every 10 days against Authnull Authenticator's every 2 months. Authnull Authenticator's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.2). On price, 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.

Authnull Authenticator ships an update every 2 months, Trevo every 10 days. The most recent releases landed on October 30, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Authnull Authenticator | Trevo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Size | 22 MB | 295 MB |
| Requires iOS | **15.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Asif Ali](https://appshunter.io/developer/1684304119) | [Konnecta Systems](https://appshunter.io/developer/1726209748) |

## What reviewers say

### Authnull Authenticator

[App page](https://appshunter.io/ios/app/authnull-authenticator/id6450597014)

**Features:** Vision Pro support

**In-app purchases:** none


### Trevo

[App page](https://appshunter.io/ios/app/trevo-decentralized-e-voting/id6476206833)

**In-app purchases:** none


## Frequently asked questions

### Is Authnull Authenticator free?

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

### Is Trevo free?

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

### Do Authnull Authenticator or Trevo have ads?

Neither Authnull Authenticator nor Trevo shows ads.

### Which is updated more often, Authnull Authenticator or Trevo?

Authnull Authenticator ships an update every 2 months, and Trevo every 10 days. Most recently, Authnull Authenticator was updated on October 30, 2026 and Trevo on October 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.*