# Shared Calendar vs Spectrum Studios

The clearest difference is in-app purchases: Spectrum Studios at none against Shared Calendar's 2. Spectrum Studios also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.0). Shared Calendar's advantage is update cadence (every 9 days vs every 55 months). On price and ads there is nothing between them.

Both are free to download. Shared Calendar sells 2 one-off in-app purchases. Spectrum Studios asks for nothing beyond the download.

Shared Calendar ships an update every 9 days, Spectrum Studios every 55 months. The most recent releases landed on October 12, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Shared Calendar | Spectrum Studios |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (124 ratings)](https://appshunter.io/ios/app/shared-calendar/id601941101/reviews)** | — |
| Number of ratings | **124** | — |
| Positive reviews | 61.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 9 days** | Every 55 months |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 73 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dorada App Software Ltd](https://appshunter.io/developer/382552900) | [WG FULL SERVICE SALON SUITES LLC](https://appshunter.io/developer/1497326884) |

## What reviewers say

### Shared Calendar

[App page](https://appshunter.io/ios/app/shared-calendar/id601941101)

Easily share daily repeating patterns with others. Ideal for managing work shifts, custody schedules, or any recurring events. Invitees can view or edit based on set permissions, with notifications for changes and a full audit trail.

**Highlights:** Daily repeating patterns, Share with multiple users, Customizable permissions, Push notifications, Full audit trail, Web interface

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Year Ad Free Shared Calendar | $1.99 | one-time |
| Single Calendar | $4.99 | one-time |


### Spectrum Studios

[App page](https://appshunter.io/ios/app/spectrum-studios/id1497326885)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Shared Calendar free?

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

### Is Spectrum Studios free?

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

### Do Shared Calendar or Spectrum Studios have ads?

Both Shared Calendar and Spectrum Studios show ads.

### Which is updated more often, Shared Calendar or Spectrum Studios?

Shared Calendar ships an update every 9 days, and Spectrum Studios every 55 months. Most recently, Shared Calendar was updated on October 12, 2026 and Spectrum Studios on September 25, 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.*