# Authenticator App vs Car Notifier

The clearest difference is device support: Authenticator App at 4 against Car Notifier's 2. Authenticator App also leads on iOS requirement (15.1 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Authenticator App sells 2 in-app purchases, starting at $39.99 per year and Car Notifier sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Authenticator App ships an update every 9 days, Car Notifier every 3 weeks. The most recent releases landed on September 19, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | Authenticator App | Car Notifier |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 68 MB | 15 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ashish Chaklasiya](https://appshunter.io/developer/1028356298) | [Jonas Varbrand Consulting AB](https://appshunter.io/developer/379864909) |

## What reviewers say

### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-2fa-otp/id6477574808)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator Premium - 1 year | $39.99 | per year |
| Authenticator Premium Lifetime | $69.99 | one-time |


### Car Notifier

[App page](https://appshunter.io/ios/app/car-notifier/id6479329107)

Receive alerts for open doors, unlocked cars, or incomplete charging sessions. Customize notification thresholds for doors, trunks, and charging status to avoid unexpected issues.

**Highlights:** Door open alerts, Unlocked car notifications, Charging stopped alerts, Customizable open/unlocked time thresholds, Configurable State of Charge threshold, Choice of charging notification types

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full App Access for 1 Month | $0.99 | per month |
| Full App Access for 1 Year | $4.99 | per year |
| Lifetime Full App Access | $9.99 | one-time |


## Frequently asked questions

### Is Authenticator App free?

Authenticator App is free to download, with in-app purchases available.

### Is Car Notifier free?

Car Notifier is free to download, with in-app purchases available.

### Do Authenticator App or Car Notifier have ads?

Neither Authenticator App nor Car Notifier shows ads.

### Which is updated more often, Authenticator App or Car Notifier?

Authenticator App ships an update every 9 days, and Car Notifier every 3 weeks. Most recently, Authenticator App was updated on September 19, 2026 and Car Notifier on June 2, 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.*