# Seven Calendar vs Panic Button U

The clearest difference is in-app purchases: Panic Button U at none against Seven Calendar's 3. Panic Button U also leads on update cadence (every 8 days vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Seven Calendar sells 3 one-off in-app purchases. Panic Button U asks for nothing beyond the download.

Seven Calendar ships an update every 7 months, Panic Button U every 8 days. The most recent releases landed on September 15, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Seven Calendar | Panic Button U |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 8 days** |
| Size | 1 MB | 58 MB |
| Requires iOS | 13.0 | **12.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dominic Feira](https://appshunter.io/developer/599458340) | [ULTIMA Enterprise Doo](https://appshunter.io/developer/448167316) |

## What reviewers say

### Seven Calendar

[App page](https://appshunter.io/ios/app/seven-calendar/id1104534404)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Like It | $0.99 | one-time |
| Love It | $1.99 | one-time |
| Need It | $4.99 | one-time |


### Panic Button U

[App page](https://appshunter.io/ios/app/panic-button-u/id1481809899)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Seven Calendar free?

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

### Is Panic Button U free?

Panic Button U is free to download, with no in-app purchases.

### Do Seven Calendar or Panic Button U have ads?

Neither Seven Calendar nor Panic Button U shows ads.

### Which is updated more often, Seven Calendar or Panic Button U?

Seven Calendar ships an update every 7 months, and Panic Button U every 8 days. Most recently, Seven Calendar was updated on September 15, 2026 and Panic Button U on September 20, 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.*