# Optimal Authenticator vs Chirp Access

The clearest difference is rating: Optimal Authenticator at 3.0 against Chirp Access's 2.0. Chirp Access's advantage is ratings volume (642 vs 4) and update cadence (every 6 weeks vs every 3 months). 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.

Optimal Authenticator holds the better App Store score, 3.0 against 2.0. That said, the two scores are not equally well evidenced: Chirp Access has 642 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 0% of Optimal Authenticator's written reviews are positive against 9% of Chirp Access's, so the app with the better star average is not the one people write more warmly about.

Optimal Authenticator ships an update every 3 months, Chirp Access every 6 weeks. The most recent releases landed on September 19, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Optimal Authenticator | Chirp Access |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/optimal-authenticator/id1217402923/reviews)** | [2.0 (642 ratings)](https://appshunter.io/ios/app/chirp-access/id1450159493/reviews) |
| Number of ratings | 4 | **642** |
| Positive reviews | 0.0% of reviews | **9.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 80 MB | 45 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Optimal IdM](https://appshunter.io/developer/1050742329) | [Chirp](https://appshunter.io/developer/1450159492) |

## What reviewers say

### Optimal Authenticator

[App page](https://appshunter.io/ios/app/optimal-authenticator/id1217402923)

This app provides a secure way to verify your identity for accessing other applications. It uses two-factor authentication via push notifications or verification codes, and allows organizations to register trusted devices for sign-in requests.

**Highlights:** Two-factor authentication, Push notification verification, On-app verification codes, Trusted device registration, Secure identity verification

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

**In-app purchases:** none


### Chirp Access

[App page](https://appshunter.io/ios/app/chirp-access/id1450159493)

This app allows residents of multifamily and student housing to open doors, gates, and garages using their mobile device. It also enables remote access granting for guests and service providers, eliminating the need for physical keys and fobs.

**Highlights:** Open doors, gates, and garages with mobile device, Remotely grant access to guests, Grant access to service providers, Eliminates key and fob requirements, Smart access for multifamily housing

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Convenient keyless access
- 🔒 Secure community entry
- 👍 Useful for letting in guests/deliveries

**What reviewers complain about**

- 🐛 Frequent app crashes and glitches
- 🔋 Significant battery drain
- 👎 Unreliable Bluetooth connectivity
- 👎 Inconsistent performance across doors/gates
- 👎 Lack of backup physical keys/fobs

**Reported bugs**

- App frequently freezes or becomes unresponsive
- Spaceship mode rarely works as intended
- Favorites list doesn't always load properly
- Inconsistent Bluetooth detection and connectivity

**Requested features**

- Apple Watch app support
- CarPlay integration for gate access
- Siri/voice control for door/gate opening
- Ability to add front door to favorites
- Improved UI/UX, especially for frequently used actions


## Frequently asked questions

### Is Optimal Authenticator free?

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

### Is Chirp Access free?

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

### Which has better reviews, Optimal Authenticator or Chirp Access?

Optimal Authenticator is rated higher. Optimal Authenticator averages 3.0 out of 5 from 4 ratings, while Chirp Access averages 2.0 from 642 ratings.

### Do Optimal Authenticator or Chirp Access have ads?

Neither Optimal Authenticator nor Chirp Access shows ads.

### Which is updated more often, Optimal Authenticator or Chirp Access?

Optimal Authenticator ships an update every 3 months, and Chirp Access every 6 weeks. Most recently, Optimal Authenticator was updated on September 19, 2026 and Chirp Access on September 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.*