# Backup Calendar vs Appointment Countdown

The clearest difference is ads: Appointment Countdown at none against Backup Calendar's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Backup Calendar | Appointment Countdown |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | — |
| Size | 16 MB | 2 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Motoki Takahashi](https://appshunter.io/developer/1411233238) | [Mohammed Alsuhaymi](https://appshunter.io/developer/1894989962) |

## What reviewers say

### Backup Calendar

[App page](https://appshunter.io/ios/app/backup-calendar/id6754521669)

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

**In-app purchases:** none


### Appointment Countdown

[App page](https://appshunter.io/ios/app/appointment-countdown/id6762740674)

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

**In-app purchases:** none


## Frequently asked questions

### Is Backup Calendar free?

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

### Is Appointment Countdown free?

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

### Do Backup Calendar or Appointment Countdown have ads?

Backup Calendar shows ads; Appointment Countdown does not.

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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.*