# Carl App Pro vs SJS

The clearest difference is in-app purchases: SJS at none against Carl App Pro's 23. SJS also leads on iOS requirement (13.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Carl App Pro sells 23 in-app purchases, starting at $1.99 per year. SJS asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Carl App Pro | SJS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 22 MB | 73 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Devs Cake](https://appshunter.io/developer/1775035685) | [Livro Systems Incorporated](https://appshunter.io/developer/1896544025) |

## What reviewers say

### Carl App Pro

[App page](https://appshunter.io/ios/app/carl-app-pro/id6752743059)

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

**In-app purchases (23)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Carl AI (PNLE) | $1.99 | per year |
| English | $1.99 | per year |
| Filipino | $1.99 | per year |
| Math | $1.99 | per year |
| Science | $1.99 | per year |
| Social Science | $1.99 | per year |
| Values Ed | $1.99 | per year |
| BEED | $1.99 | per year |
| CAED | $1.99 | per year |
| TLE/TVTED | $1.99 | per year |
| Majorship: CAED | $1.99 | one-time |
| Majorship: BEED | $1.99 | one-time |
| Majorship: TLETVTED | $1.99 | one-time |
| Majorship: English | $1.99 | one-time |
| Majorship: Filipino | $1.99 | one-time |
| Majorship: Math | $1.99 | one-time |
| Majorship: Values Ed | $1.99 | one-time |
| Majorship: Science | $1.99 | one-time |
| Majorship: Social Science | $1.99 | one-time |
| Quiz(10)+Mock(150) Subject | $1.99 | one-time |
| Carl AI + Download | $1.99 | one-time |
| Majorship Subject (One-Time) | $1.99 | one-time |
| Gen Ed + Prof Ed (Bundle) | $2.99 | one-time |


### SJS

[App page](https://appshunter.io/ios/app/sjs-candaba/id6790290306)

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

**In-app purchases:** none


## Frequently asked questions

### Is Carl App Pro free?

Carl App Pro is free to download, with in-app purchases available.

### Is SJS free?

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

### Do Carl App Pro or SJS have ads?

Neither Carl App Pro nor SJS shows ads.

### Which is updated more often, Carl App Pro or SJS?

Carl App Pro ships an update every 3 weeks, and SJS every 3 weeks. Most recently, Carl App Pro was updated on October 30, 2026 and SJS 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.*