# Simplex by SMS vs Authenticator App ․

The clearest difference is in-app purchases: Simplex by SMS at none against Authenticator App ․'s 2. Simplex by SMS also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Authenticator App ․ sells 2 in-app purchases, starting at $5.99 per 7 days. Simplex by SMS asks for nothing beyond the download.

Simplex by SMS ships an update every 3 months, Authenticator App ․ every 2 months. The most recent releases landed on September 22, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Simplex by SMS | Authenticator App ․ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simplex-by-sms/id6450359480/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 347 MB | 30 MB |
| Requires iOS | 16.0 | **15** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Simplex Marketing System](https://appshunter.io/developer/1692911351) | [Roof Data Limited](https://appshunter.io/developer/1831153772) |

## What reviewers say

### Simplex by SMS

[App page](https://appshunter.io/ios/app/simplex-by-sms/id6450359480)

This all-in-one platform uses AI to streamline sales and marketing for gym owners. It offers lead generation, automated workflows, reputation management, and a website builder. Seamlessly syncs automated marketing with personal team interaction for a personalized customer experience.

**Highlights:** AI-powered sales and marketing, Lead generation from multiple sources, Automated workflows, Reputation management tool, Website builder, CRM/lead management, 2-way sync with automation

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Authenticator App ․

[App page](https://appshunter.io/ios/app/authenticator-app/id6767821409)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GuardVault Weekly VIP | $5.99 | per 7 days |
| GuardVault Yearly VIP | $39.99 | per year |


## Frequently asked questions

### Is Simplex by SMS free?

Simplex by SMS is free to download, with no in-app purchases.

### Is Authenticator App ․ free?

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

### Do Simplex by SMS or Authenticator App ․ have ads?

Authenticator App ․ shows ads; Simplex by SMS does not.

### Which is updated more often, Simplex by SMS or Authenticator App ․?

Simplex by SMS ships an update every 3 months, and Authenticator App ․ every 2 months. Most recently, Simplex by SMS was updated on September 22, 2026 and Authenticator App ․ 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.*