# STUDEE vs stac

The clearest difference is ads: STUDEE at none against stac's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. STUDEE sells 2 in-app purchases, starting at $3.99 per month and stac sells 5 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

STUDEE ships an update every 6 days, stac weekly. The most recent releases landed on September 18, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | STUDEE | stac |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Weekly |
| Size | 47 MB | 43 MB |
| Requires iOS | 14.0.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [hyunjin lee](https://appshunter.io/developer/1863591652) | [Ai To Mobile](https://appshunter.io/developer/1475589426) |

## What reviewers say

### STUDEE

[App page](https://appshunter.io/ios/app/studee-study-tracker-plan/id6756905629)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly plan | $3.99 | per month |
| Premium Annual | $29.99 | per year |


### stac

[App page](https://appshunter.io/ios/app/stac-focus-timer-build-world/id6764253760)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| STAC Plus Membership | $2.99 | per month |
| Streak Freeze | $0.99 | one-time |
| boost potion lite | $0.99 | one-time |
| boost potion pro | $1.19 | one-time |
| Demotion Shield | $1.99 | one-time |


## Frequently asked questions

### Is STUDEE free?

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

### Is stac free?

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

### Do STUDEE or stac have ads?

stac shows ads; STUDEE does not.

### Which is updated more often, STUDEE or stac?

STUDEE ships an update every 6 days, and stac weekly. Most recently, STUDEE was updated on September 18, 2026 and stac on August 27, 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.*