# Event Power vs BIDays

The clearest difference is iOS requirement: Event Power at 12.0 against BIDays's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Event Power ships an update every 17 months, BIDays every 15 months. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Event Power | BIDays |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 15 months** |
| Size | 82 MB | 65 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Eventronics](https://appshunter.io/developer/1528931023) | [Brain Innovation Days](https://appshunter.io/developer/1831018160) |

## What reviewers say

### Event Power

[App page](https://appshunter.io/ios/app/event-power/id1528931021)

**Features:** macOS Compatibility

**In-app purchases:** none


### BIDays

[App page](https://appshunter.io/ios/app/bidays/id6749543609)

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

**In-app purchases:** none


## Frequently asked questions

### Is Event Power free?

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

### Is BIDays free?

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

### Do Event Power or BIDays have ads?

Neither Event Power nor BIDays shows ads.

### Which is updated more often, Event Power or BIDays?

Event Power ships an update every 17 months, and BIDays every 15 months. Most recently, Event Power was updated on October 25, 2026 and BIDays on October 30, 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.*