# Kemistri vs Atom Worldbox

The clearest difference is ads: Kemistri at none against Atom Worldbox's shown. Atom Worldbox's advantage is update cadence (every 2 days vs every 5 weeks) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Kemistri sells 4 in-app purchases, starting at $3.99 per month and Atom Worldbox sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Kemistri ships an update every 5 weeks, Atom Worldbox every 2 days. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Kemistri | Atom Worldbox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Size | 45 MB | 22 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [EdBetter Limited](https://appshunter.io/developer/1810500957) | [GEOCO YAZILIM ANONIM SIRKETI](https://appshunter.io/developer/6782131734) |

## What reviewers say

### Kemistri

[App page](https://appshunter.io/ios/app/kemistri/id6757977295)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access Pass | $3.99 | per month |
| Quarterly Access Pass | $9.99 | per 3 months |
| Semiannual Access Pass | $17.99 | per 6 months |
| Annual Access Pass | $24.99 | per year |


### Atom Worldbox

[App page](https://appshunter.io/ios/app/atom-worldbox/id6782131732)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Atom Worldbox Pro | $1.99 | one-time |


## Frequently asked questions

### Is Kemistri free?

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

### Is Atom Worldbox free?

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

### Do Kemistri or Atom Worldbox have ads?

Atom Worldbox shows ads; Kemistri does not.

### Which is updated more often, Kemistri or Atom Worldbox?

Kemistri ships an update every 5 weeks, and Atom Worldbox every 2 days. Most recently, Kemistri was updated on October 12, 2026 and Atom Worldbox on October 9, 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.*