# OGSM vs True Authenticator TOTP 2FA

The clearest difference is in-app purchases: OGSM at none against True Authenticator TOTP 2FA's 3. OGSM also leads on ads (none vs shown) and update cadence (every 2 days vs weekly). On price and device support there is nothing between them.

Both are free to download. True Authenticator TOTP 2FA sells 3 in-app purchases, starting at $2.99 per 7 days. OGSM asks for nothing beyond the download.

OGSM ships an update every 2 days, True Authenticator TOTP 2FA weekly. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | OGSM | True Authenticator TOTP 2FA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/true-authenticator-totp-2fa/id6762838868/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 53 MB | 36 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [NEUDIMENXION](https://appshunter.io/developer/1260995517) | [Ta Duc Huy](https://appshunter.io/developer/1895036973) |

## What reviewers say

### OGSM

[App page](https://appshunter.io/ios/app/ogsm/id6450101819)

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

**In-app purchases:** none


### True Authenticator TOTP 2FA

[App page](https://appshunter.io/ios/app/true-authenticator-totp-2fa/id6762838868)

This app provides secure two-factor authentication codes and enhances security with real-time scam detection for links and calls. It also offers encrypted sharing of codes for families or teams and secure iCloud backup to prevent account loss.

**Highlights:** On-device TOTP/HOTP code generation, Real-time fraudulent link/call detection, Encrypted 2FA code sharing, Encrypted iCloud sync and backup, Live Activity and Dynamic Island integration, Smart QR scanner for account setup, Face ID/Passcode app lock

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |
| Premium Yearly | $29.99 | per year |
| Premium Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is OGSM free?

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

### Is True Authenticator TOTP 2FA free?

True Authenticator TOTP 2FA is free to download, with in-app purchases available.

### Do OGSM or True Authenticator TOTP 2FA have ads?

True Authenticator TOTP 2FA shows ads; OGSM does not.

### Which is updated more often, OGSM or True Authenticator TOTP 2FA?

OGSM ships an update every 2 days, and True Authenticator TOTP 2FA weekly. Most recently, OGSM was updated on October 17, 2026 and True Authenticator TOTP 2FA on October 9, 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.*