# Avision MB vs Calendar Event Countdowns

The clearest difference is update cadence: Calendar Event Countdowns at every 3 weeks against Avision MB's every 3 months. Avision MB's advantage is iOS requirement (8.0 vs 13.0). On price, ads, 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.

Avision MB ships an update every 3 months, Calendar Event Countdowns every 3 weeks. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Avision MB | Calendar Event Countdowns |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 59 MB | 48 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Avision Inc.](https://appshunter.io/developer/789641405) | [Smart Data Applications Cologne UG](https://appshunter.io/developer/1695599767) |

## What reviewers say

### Avision MB

[App page](https://appshunter.io/ios/app/avision-mb/id956721748)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calendar Event Countdowns

[App page](https://appshunter.io/ios/app/calendar-event-countdowns/id6450902759)

**In-app purchases:** none


## Frequently asked questions

### Is Avision MB free?

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

### Is Calendar Event Countdowns free?

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

### Do Avision MB or Calendar Event Countdowns have ads?

Neither Avision MB nor Calendar Event Countdowns shows ads.

### Which is updated more often, Avision MB or Calendar Event Countdowns?

Avision MB ships an update every 3 months, and Calendar Event Countdowns every 3 weeks. Most recently, Avision MB was updated on October 7, 2026 and Calendar Event Countdowns on October 1, 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.*