# Loft Calendar vs CalStack

The clearest difference is price: Loft Calendar at Free against CalStack's $9.99. CalStack's advantage is in-app purchases (none vs 1) and update cadence (every 5 days vs every 2 months). On ads and iOS requirement there is nothing between them.

Loft Calendar is free to download; CalStack costs $9.99 up front. Loft Calendar sells 1 one-off in-app purchase. CalStack asks for nothing beyond the download.

Loft Calendar ships an update every 2 months, CalStack every 5 days. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Loft Calendar | CalStack |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Size | 10 MB | 20 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [BLUEPRINT TECH LIMITED](https://appshunter.io/developer/6786098557) | [Pick Two Productions Inc](https://appshunter.io/developer/1860419697) |

## What reviewers say

### Loft Calendar

[App page](https://appshunter.io/ios/app/loft-calendar/id6786098555)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Loft Calendar | $9.99 | one-time |


### CalStack

[App page](https://appshunter.io/ios/app/calstack/id6789672345)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Loft Calendar free?

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

### Is CalStack free?

CalStack costs $9.99, with no in-app purchases.

### Do Loft Calendar or CalStack have ads?

Neither Loft Calendar nor CalStack shows ads.

### Which is updated more often, Loft Calendar or CalStack?

Loft Calendar ships an update every 2 months, and CalStack every 5 days. Most recently, Loft Calendar was updated on October 16, 2026 and CalStack on October 9, 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.*