# Simple Appointment App vs Substrack

The clearest difference is in-app purchases: Substrack at none against Simple Appointment App's 2. Substrack also leads on update cadence (every 4 days vs every 11 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Simple Appointment App sells 2 in-app purchases, starting at $12.99 per month. Substrack asks for nothing beyond the download.

Simple Appointment App ships an update every 11 days, Substrack every 4 days. The most recent releases landed on October 9, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Simple Appointment App | Substrack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-appointment-app/id6451069138/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 65.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 42 MB | 41 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mert Can TASKIN](https://appshunter.io/developer/1716262900) | [Baris Gunduz](https://appshunter.io/developer/6775582146) |

## What reviewers say

### Simple Appointment App

[App page](https://appshunter.io/ios/app/simple-appointment-app/id6451069138)

Manage client appointments and schedules with ease. This app allows businesses and solo professionals to create customer lists, set staff availability, and track appointments. Customers can also book directly through the app, streamlining the entire process.

**Highlights:** Create customer lists, Manage multiple staff members, Set service and working hours, Customer self-booking, Appointment notifications, Income and appointment management

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Aylık | $12.99 | per month |
| Pro 6 Aylık | $69.99 | per 6 months |


### Substrack

[App page](https://appshunter.io/ios/app/substrack-payment-tracker/id6775582144)

**In-app purchases:** none


## Frequently asked questions

### Is Simple Appointment App free?

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

### Is Substrack free?

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

### Do Simple Appointment App or Substrack have ads?

Neither Simple Appointment App nor Substrack shows ads.

### Which is updated more often, Simple Appointment App or Substrack?

Simple Appointment App ships an update every 11 days, and Substrack every 4 days. Most recently, Simple Appointment App was updated on October 9, 2026 and Substrack on September 24, 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.*