# SOTP Authenticator vs EZDateCalc

The clearest difference is in-app purchases: EZDateCalc at none against SOTP Authenticator's 2. SOTP Authenticator's advantage is update cadence (every 5 months vs every 27 months) and iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. SOTP Authenticator sells 2 one-off in-app purchases. EZDateCalc asks for nothing beyond the download.

SOTP Authenticator ships an update every 5 months, EZDateCalc every 27 months. The most recent releases landed on September 16, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | SOTP Authenticator | EZDateCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 27 months |
| Size | 20 MB | 6 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Anzhela Baroyan](https://appshunter.io/developer/1526016553) | [FIL N GO Inc.](https://appshunter.io/developer/1642613361) |

## What reviewers say

### SOTP Authenticator

[App page](https://appshunter.io/ios/app/sotp-authenticator/id1526068202)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One dollar donation | $0.99 | one-time |
| Five dollar donation | $4.99 | one-time |


### EZDateCalc

[App page](https://appshunter.io/ios/app/ezdatecalc/id1643729409)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SOTP Authenticator free?

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

### Is EZDateCalc free?

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

### Do SOTP Authenticator or EZDateCalc have ads?

Neither SOTP Authenticator nor EZDateCalc shows ads.

### Which is updated more often, SOTP Authenticator or EZDateCalc?

SOTP Authenticator ships an update every 5 months, and EZDateCalc every 27 months. Most recently, SOTP Authenticator was updated on September 16, 2026 and EZDateCalc on September 22, 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.*