# Labrador Tower vs CalendarSync

The clearest difference is in-app purchases: Labrador Tower at none against CalendarSync's 1. CalendarSync's advantage is update cadence (every 3 days vs every 2 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. CalendarSync sells 1 in-app purchase, starting at $0.99 per month. Labrador Tower asks for nothing beyond the download.

Labrador Tower ships an update every 2 months, CalendarSync every 3 days. The most recent releases landed on September 11, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Labrador Tower | CalendarSync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 61 MB | 46 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HABITAP PTE. LTD](https://appshunter.io/developer/1131905342) | [Aziz Ahmad](https://appshunter.io/developer/1855492252) |

## What reviewers say

### Labrador Tower

[App page](https://appshunter.io/ios/app/labrador-tower/id6504077179)

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

**In-app purchases:** none


### CalendarSync

[App page](https://appshunter.io/ios/app/calendarsync/id6760324878)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalSync Pro Monthly | $0.99 | per month |


## Frequently asked questions

### Is Labrador Tower free?

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

### Is CalendarSync free?

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

### Do Labrador Tower or CalendarSync have ads?

Neither Labrador Tower nor CalendarSync shows ads.

### Which is updated more often, Labrador Tower or CalendarSync?

Labrador Tower ships an update every 2 months, and CalendarSync every 3 days. Most recently, Labrador Tower was updated on September 11, 2026 and CalendarSync on September 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*