# Proactive DMS vs Appointment Calendar

The clearest difference is in-app purchases: Proactive DMS at none against Appointment Calendar's 6. Proactive DMS also leads on iOS requirement (13.0 vs 15.0). Appointment Calendar's advantage is update cadence (every 4 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Appointment Calendar sells 6 in-app purchases, starting at $3.99 per month. Proactive DMS asks for nothing beyond the download.

Proactive DMS ships an update every 2 months, Appointment Calendar every 4 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Proactive DMS | Appointment Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 34 MB | 43 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 12+ |
| Developer | [Proactivesoft for Applications](https://appshunter.io/developer/1588641866) | [IRFAN ONGUC](https://appshunter.io/developer/1858405775) |

## What reviewers say

### Proactive DMS

[App page](https://appshunter.io/ios/app/proactive-dms-service/id6446953339)

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

**In-app purchases:** none


### Appointment Calendar

[App page](https://appshunter.io/ios/app/appointment-calendar-planize/id6753766152)

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $3.99 | per month |
| Team Monthly | $12.99 | per month |
| Business Monthly | $24.99 | per month |
| Premium Yearly | $39.99 | per year |
| Team Yearly | $129.99 | per year |
| Business Yearly | $249.99 | per year |


## Frequently asked questions

### Is Proactive DMS free?

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

### Is Appointment Calendar free?

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

### Do Proactive DMS or Appointment Calendar have ads?

Neither Proactive DMS nor Appointment Calendar shows ads.

### Which is updated more often, Proactive DMS or Appointment Calendar?

Proactive DMS ships an update every 2 months, and Appointment Calendar every 4 days. Most recently, Proactive DMS was updated on October 25, 2026 and Appointment Calendar on October 25, 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.*