# Sunja vs Zoptiks

The clearest difference is ads: Zoptiks at none against Sunja's shown. Zoptiks also leads on update cadence (every 2 weeks vs every 5 months) and device support (4 vs 2). Sunja's advantage is iOS requirement (17.6 vs 26.0). On price and in-app purchases there is nothing between them.

Both are free to download. Sunja sells 2 in-app purchases, starting at $29.99 per month and Zoptiks sells 9 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Sunja ships an update every 5 months, Zoptiks every 2 weeks. The most recent releases landed on October 24, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Sunja | Zoptiks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zoptiks/id6800895172/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 70 MB | 677 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Sunja Labs Private Limited](https://appshunter.io/developer/1774734869) | [Zoptiks](https://appshunter.io/developer/1288555415) |

## What reviewers say

### Sunja

[App page](https://appshunter.io/ios/app/sunja-interactive-3d-science/id6760365462)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Learning | $29.99 | per month |
| Annual Learning | $199.99 | per year |


### Zoptiks

[App page](https://appshunter.io/ios/app/zoptiks/id6800895172)

**Features:** Safari Extension, Family Sharing, Apple Wallet, Apple Watch app, iMessage stickers, Vision Pro support, iPhone Duo support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zoptiks Plus | $9.99 | per month |
| Zoptiks Family Monthly | $19.99 | per month |
| Zoptiks Plus (Annual) | $99.99 | per year |
| Zoptiks Plus Yearly | $99.99 | per year |
| Zoptiks Family Yearly | $199.99 | per year |
| AI Credits 100 | $1.99 | one-time |
| AI Credits 500 | $7.99 | one-time |
| Lifetime Plus | $99.99 | one-time |
| Lifetime Family | $199.99 | one-time |


## Frequently asked questions

### Is Sunja free?

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

### Is Zoptiks free?

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

### Do Sunja or Zoptiks have ads?

Sunja shows ads; Zoptiks does not.

### Which is updated more often, Sunja or Zoptiks?

Sunja ships an update every 5 months, and Zoptiks every 2 weeks. Most recently, Sunja was updated on October 24, 2026 and Zoptiks on November 6, 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.*