# ProSafe vs Backup Calendar

The clearest difference is ads: ProSafe at none against Backup Calendar's shown. ProSafe also leads on iOS requirement (16.6 vs 18.6). Backup Calendar's advantage is update cadence (daily vs fortnightly). On price, 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.

ProSafe ships an update fortnightly, Backup Calendar daily. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ProSafe | Backup Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/prosafe/id1610641459/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Daily** |
| Monetization | Free | — |
| Size | 109 MB | 13 MB |
| Requires iOS | **16.6** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [ProSafe](https://appshunter.io/developer/1510365790) | [Motoki Takahashi](https://appshunter.io/developer/1411233238) |

## What reviewers say

### ProSafe

[App page](https://appshunter.io/ios/app/prosafe/id1610641459)

This app provides a panic button feature for enhanced safety, instantly alerting administrators and nearby users. It also enables staff to gather audio and video evidence of incidents on a remote server.

**Highlights:** Panic Button for alerts, Admin Dashboard alerts, Nearby user notifications, Audio evidence collection, Video evidence collection, Remote server storage

**In-app purchases:** none


### Backup Calendar

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ProSafe free?

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

### Is Backup Calendar free?

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

### Do ProSafe or Backup Calendar have ads?

Backup Calendar shows ads; ProSafe does not.

### Which is updated more often, ProSafe or Backup Calendar?

ProSafe ships an update fortnightly, and Backup Calendar daily. Most recently, ProSafe was updated on October 6, 2026 and Backup Calendar on October 3, 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.*