# Sunja vs Study Planner for High

The clearest difference is ads: Study Planner for High at none against Sunja's shown. Study Planner for High also leads on update cadence (every 2 weeks vs every 5 months) and iOS requirement (15.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Sunja sells 2 in-app purchases, starting at $29.99 per month and Study Planner for High sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Sunja ships an update every 5 months, Study Planner for High every 2 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Sunja | Study Planner for High |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 70 MB | 27 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Sunja Labs Private Limited](https://appshunter.io/developer/1774734869) | [HyunJu Kim](https://appshunter.io/developer/6780143762) |

## 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 |


### Study Planner for High

[App page](https://appshunter.io/ios/app/study-planner-for-high-school/id6780143760)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Plus 월간 멤버십 | $1.99 | per month |


## Frequently asked questions

### Is Sunja free?

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

### Is Study Planner for High free?

Study Planner for High is free to download, with in-app purchases available.

### Do Sunja or Study Planner for High have ads?

Sunja shows ads; Study Planner for High does not.

### Which is updated more often, Sunja or Study Planner for High?

Sunja ships an update every 5 months, and Study Planner for High every 2 weeks. Most recently, Sunja was updated on October 24, 2026 and Study Planner for High on October 28, 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.*