# Fågelkalendern vs Simple Visualize AI

The clearest difference is in-app purchases: Fågelkalendern at none against Simple Visualize AI's 2. Fågelkalendern also leads on iOS requirement (10.0 vs 15.6). Simple Visualize AI's advantage is update cadence (every 10 days vs every 26 months). On price, ads and device support there is nothing between them.

Both are free to download. Simple Visualize AI sells 2 in-app purchases, starting at $4.99 per month. Fågelkalendern asks for nothing beyond the download.

Fågelkalendern ships an update every 26 months, Simple Visualize AI every 10 days. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Fågelkalendern | Simple Visualize AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 10 days** |
| Size | 23 MB | 100 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kim Lindgren](https://appshunter.io/developer/1604803194) | [YUKI TANAIKE](https://appshunter.io/developer/478558546) |

## What reviewers say

### Fågelkalendern

[App page](https://appshunter.io/ios/app/fagelkalendern/id1087288057)

**Features:** macOS Compatibility

**In-app purchases:** none


### Simple Visualize AI

[App page](https://appshunter.io/ios/app/simple-visualize-ai/id6752496130)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SimpleVisualizeAI Pro(Monthly) | $4.99 | per month |
| SimpleVisualizeAI Pro(Annual) | $44.99 | per year |


## Frequently asked questions

### Is Fågelkalendern free?

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

### Is Simple Visualize AI free?

Simple Visualize AI is free to download, with in-app purchases available.

### Do Fågelkalendern or Simple Visualize AI have ads?

Neither Fågelkalendern nor Simple Visualize AI shows ads.

### Which is updated more often, Fågelkalendern or Simple Visualize AI?

Fågelkalendern ships an update every 26 months, and Simple Visualize AI every 10 days. Most recently, Fågelkalendern was updated on October 4, 2026 and Simple Visualize AI on October 17, 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.*