# P.S. 333 vs 333MSL

The clearest difference is in-app purchases: P.S. 333 at none against 333MSL's 1. P.S. 333 also leads on update cadence (every 2 months vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 333MSL sells 1 one-off in-app purchase. P.S. 333 asks for nothing beyond the download.

P.S. 333 ships an update every 2 months, 333MSL every 7 months. The most recent releases landed on September 5, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | P.S. 333 | 333MSL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/ps-333/id1552567908/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | — |
| Size | 165 MB | 52 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Solved Education Consultancy, LLC](https://appshunter.io/developer/1506645558) | [TagMango Inc](https://appshunter.io/developer/1611765353) |

## What reviewers say

### P.S. 333

[App page](https://appshunter.io/ios/app/ps-333/id1552567908)

This app provides students, families, and staff with a centralized digital hub for academic information, school news, and community engagement. It offers features like schedules, grades, PTA updates, staff directories, and professional development resources, with over 100 language options and accessibility features.

**Highlights:** Academic schedules and grades, Classroom resources, PTA updates and staff directory, Student reports, PBIS integration, CTLE resources, Push notifications for school news, Consolidated social media feed

**Features:** Vision Pro support

**In-app purchases:** none


### 333MSL

[App page](https://appshunter.io/ios/app/333msl/id6503248541)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KAS /PSI ONLINE COURES | $9.99 | one-time |


## Frequently asked questions

### Is P.S. 333 free?

P.S. 333 is free to download, with no in-app purchases.

### Is 333MSL free?

333MSL is free to download, with in-app purchases available.

### Do P.S. 333 or 333MSL have ads?

Neither P.S. 333 nor 333MSL shows ads.

### Which is updated more often, P.S. 333 or 333MSL?

P.S. 333 ships an update every 2 months, and 333MSL every 7 months. Most recently, P.S. 333 was updated on September 5, 2026 and 333MSL on September 14, 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.*