# Simplex by SMS vs Mail and calendar

The clearest difference is ads: Simplex by SMS at none against Mail and calendar's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Simplex by SMS ships an update every 3 months, Mail and calendar every 4 months. The most recent releases landed on October 9, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Simplex by SMS | Mail and calendar |
| --- | --- | --- |
| 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 | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 347 MB | 27 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Simplex Marketing System](https://appshunter.io/developer/1692911351) | [Rohit Bhayani](https://appshunter.io/developer/1696270287) |

## 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


### Mail and calendar

[App page](https://appshunter.io/ios/app/mail-and-calendar/id6476649138)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simplex by SMS free?

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

### Is Mail and calendar free?

Mail and calendar is free to download, with no in-app purchases.

### Do Simplex by SMS or Mail and calendar have ads?

Mail and calendar shows ads; Simplex by SMS does not.

### Which is updated more often, Simplex by SMS or Mail and calendar?

Simplex by SMS ships an update every 3 months, and Mail and calendar every 4 months. Most recently, Simplex by SMS was updated on October 9, 2026 and Mail and calendar on October 27, 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.*