# CA Mobile Authenticator vs eCFR

The clearest difference is rating: eCFR at 5.0 against CA Mobile Authenticator's 1.9. eCFR also leads on update cadence (monthly vs every 6 months). CA Mobile Authenticator's advantage is iOS requirement (12.0 vs 15.1). On price, ratings volume, 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.

eCFR holds the better App Store score, 5.0 against 1.9. Both are backed by a comparable volume of ratings — 11 and 7 respectively.

CA Mobile Authenticator ships an update every 6 months, eCFR monthly. The most recent releases landed on September 20, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | CA Mobile Authenticator | eCFR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (11 ratings)](https://appshunter.io/ios/app/ca-mobile-authenticator/id1180629016/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/ecfr-fra/id1499013687/reviews)** |
| Number of ratings | **11** | 7 |
| Positive reviews | 3.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Free | Free |
| Size | 7 MB | 26 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CA, Inc](https://appshunter.io/developer/400519643) | [RailPros](https://appshunter.io/developer/1499013686) |

## What reviewers say

### CA Mobile Authenticator

[App page](https://appshunter.io/ios/app/ca-mobile-authenticator/id1180629016)

Enhance transaction security with two-factor authentication. Register your device and authenticate transactions via push notifications, simply approving or denying requests directly from your screen.

**Highlights:** Two-factor authentication, Device registration, QR code activation, Push notification authentication, Approve/Deny transaction options

**Features:** macOS Compatibility

**In-app purchases:** none


### eCFR

[App page](https://appshunter.io/ios/app/ecfr-fra/id1499013687)

Access and reference specific sections of the Federal Railroad Administration's regulations. Customize your homescreen, bookmark frequently visited parts, and easily share content with others for quick access to vital safety standards.

**Highlights:** Customizable homescreen, Quick access to specific parts, Bookmark frequently visited sections, Share parts and subparts, Offline access to regulations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CA Mobile Authenticator free?

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

### Is eCFR free?

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

### Which has better reviews, CA Mobile Authenticator or eCFR?

eCFR is rated higher. CA Mobile Authenticator averages 1.9 out of 5 from 11 ratings, while eCFR averages 5.0 from 7 ratings.

### Do CA Mobile Authenticator or eCFR have ads?

Neither CA Mobile Authenticator nor eCFR shows ads.

### Which is updated more often, CA Mobile Authenticator or eCFR?

CA Mobile Authenticator ships an update every 6 months, and eCFR monthly. Most recently, CA Mobile Authenticator was updated on September 20, 2026 and eCFR on June 1, 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.*