# Tempo vs Calendar Busy Sync

The clearest difference is update cadence: Tempo at every 9 days against Calendar Busy Sync's every 2 months. 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.

Tempo ships an update every 9 days, Calendar Busy Sync every 2 months. The most recent releases landed on November 5, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Tempo | Calendar Busy Sync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Size | 5 MB | 10 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tobias Ruano](https://appshunter.io/developer/1459688284) | [Sous Chef Studio, Inc.](https://appshunter.io/developer/1768173412) |

## What reviewers say

### Tempo

[App page](https://appshunter.io/ios/app/tempo-pomodoro-timer/id6760160526)

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

**In-app purchases:** none


### Calendar Busy Sync

[App page](https://appshunter.io/ios/app/calendar-busy-sync/id6762634278)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tempo free?

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

### Is Calendar Busy Sync free?

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

### Do Tempo or Calendar Busy Sync have ads?

Neither Tempo nor Calendar Busy Sync shows ads.

### Which is updated more often, Tempo or Calendar Busy Sync?

Tempo ships an update every 9 days, and Calendar Busy Sync every 2 months. Most recently, Tempo was updated on November 5, 2026 and Calendar Busy Sync on October 28, 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.*