# FirstSeed Calendar vs Stavebook

The clearest difference is ads: Stavebook at none against FirstSeed Calendar's shown. Stavebook also leads on iOS requirement (18.0 vs 26.0). FirstSeed Calendar's advantage is update cadence (every 8 days vs every 2 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. FirstSeed Calendar sells 2 in-app purchases, starting at $2.99 per month and Stavebook sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

FirstSeed Calendar ships an update every 8 days, Stavebook every 2 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | FirstSeed Calendar | Stavebook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (337 ratings)](https://appshunter.io/ios/app/firstseed-calendar/id1321260278/reviews)** | — |
| Number of ratings | **337** | — |
| Positive reviews | 80.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 67 MB | 23 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [FirstSeed Inc](https://appshunter.io/developer/1321260277) | [rociiu](https://appshunter.io/developer/459376396) |

## What reviewers say

### FirstSeed Calendar

[App page](https://appshunter.io/ios/app/firstseed-calendar/id1321260278)

A powerful scheduling app that manages both events and reminders. It offers innovative calendar views, interactive widgets for various iOS versions, and seamless syncing with Apple's Calendar and Reminders apps. An optional paid upgrade unlocks advanced features like natural language event processing and drag-and-drop functionality.

**Highlights:** Interactive and lock-screen widgets, Full-featured month, week, and list views, Event and reminder management, Natural language event processing (paid), Drag & drop event manipulation (paid), Apple Watch support, Syncs with Apple Calendar and Reminders

**Features:** Family Sharing, Apple Watch app, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Donation | $2.99 | per month |
| Pro Version | $9.99 | one-time |


### Stavebook

[App page](https://appshunter.io/ios/app/stavebook/id6802567590)

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stavebook Pro Monthly | $2.99 | per month |
| Stavebook Pro Yearly | $24.99 | per year |


## Frequently asked questions

### Is FirstSeed Calendar free?

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

### Is Stavebook free?

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

### Do FirstSeed Calendar or Stavebook have ads?

FirstSeed Calendar shows ads; Stavebook does not.

### Which is updated more often, FirstSeed Calendar or Stavebook?

FirstSeed Calendar ships an update every 8 days, and Stavebook every 2 months. Most recently, FirstSeed Calendar was updated on October 29, 2026 and Stavebook on October 29, 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.*