# Authenticator App | Two Factor vs Field Area Measure

The clearest difference is update cadence: Field Area Measure at daily against Authenticator App | Two Factor's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Authenticator App | Two Factor sells 4 in-app purchases, starting at $1.99 per 7 days and Field Area Measure sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Authenticator App | Two Factor ships an update every 2 months, Field Area Measure daily. The most recent releases landed on October 1, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Authenticator App | Two Factor | Field Area Measure |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Size | 27 MB | 43 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bhadresh Jadav](https://appshunter.io/developer/1887857328) | [RETRYTECH LLP](https://appshunter.io/developer/1544420363) |

## What reviewers say

### Authenticator App | Two Factor

[App page](https://appshunter.io/ios/app/authenticator-app-two-factor/id6773094792)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $19.99 | per year |
| Lifetime Premium | $24.99 | one-time |


### Field Area Measure

[App page](https://appshunter.io/ios/app/field-area-measure-plotrace/id6808253333)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plotrace Pro Monthly | $9.99 | per month |
| Plotrace Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is Authenticator App | Two Factor free?

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

### Is Field Area Measure free?

Field Area Measure is free to download, with in-app purchases available.

### Do Authenticator App | Two Factor or Field Area Measure have ads?

Neither Authenticator App | Two Factor nor Field Area Measure shows ads.

### Which is updated more often, Authenticator App | Two Factor or Field Area Measure?

Authenticator App | Two Factor ships an update every 2 months, and Field Area Measure daily. Most recently, Authenticator App | Two Factor was updated on October 1, 2026 and Field Area Measure 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.*