# Finnish calendar vs HattiWatt

The clearest difference is in-app purchases: HattiWatt at none against Finnish calendar's 3. Finnish calendar's advantage is iOS requirement (15.6 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Finnish calendar sells 3 one-off in-app purchases. HattiWatt asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 6 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Finnish calendar | HattiWatt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/finnish-calendar/id1278889947/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 4 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Valorbyte Oy](https://appshunter.io/developer/1278889946) | [Pramell](https://appshunter.io/developer/1581797918) |

## What reviewers say

### Finnish calendar

[App page](https://appshunter.io/ios/app/finnish-calendar/id1278889947)

This app provides a comprehensive calendar experience with Finnish holidays, flag days, and name dates. It integrates seamlessly with your device's system calendar, allowing for easy event management and synchronization across devices. Additional features like moon phases are available through in-app purchases.

**Highlights:** Finnish holidays and flag days, Calendar filtering, Event searching, adding, and editing, Landscape week view, System calendar integration, Name dates and moon phases (in-app purchase)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Phases of moon | $0.99 | one-time |
| Finnish name dates | $1.99 | one-time |
| Pro feature pack | $2.99 | one-time |


### HattiWatt

[App page](https://appshunter.io/ios/app/hattiwatt/id6443710171)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Finnish calendar free?

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

### Is HattiWatt free?

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

### Do Finnish calendar or HattiWatt have ads?

Neither Finnish calendar nor HattiWatt shows ads.

### Which is updated more often, Finnish calendar or HattiWatt?

Finnish calendar ships an update every 6 weeks, and HattiWatt every 6 weeks. Most recently, Finnish calendar was updated on October 24, 2026 and HattiWatt on October 24, 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.*