# Obseed vs LaChart

The clearest difference is update cadence: LaChart at every 9 days against Obseed's every 6 weeks. LaChart also leads on iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Obseed ships an update every 6 weeks, LaChart every 9 days. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Obseed | LaChart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Size | 6 MB | 226 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Metzing](https://appshunter.io/developer/1660773707) | [Jakub Stadnik](https://appshunter.io/developer/1895908891) |

## What reviewers say

### Obseed

[App page](https://appshunter.io/ios/app/obseed/id6499069171)

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

**In-app purchases:** none


### LaChart

[App page](https://appshunter.io/ios/app/lachart/id6764768876)

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

**In-app purchases:** none


## Frequently asked questions

### Is Obseed free?

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

### Is LaChart free?

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

### Do Obseed or LaChart have ads?

Neither Obseed nor LaChart shows ads.

### Which is updated more often, Obseed or LaChart?

Obseed ships an update every 6 weeks, and LaChart every 9 days. Most recently, Obseed was updated on October 6, 2026 and LaChart on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*