# Protege App vs KAL School Bus

The clearest difference is iOS requirement: Protege App at 13.0 against KAL School Bus's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 2, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Protege App | KAL School Bus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/protege-app/id1455444541/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free | — |
| Size | 58 MB | 57 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [XQRX Holdings LLP](https://appshunter.io/developer/1455444540) | [1tpt.com](https://appshunter.io/developer/1699053408) |

## What reviewers say

### Protege App

[App page](https://appshunter.io/ios/app/protege-app/id1455444541)

This app connects mentors and mentees within a structured program. Users can access workshops, save events, chat with their matched partner, and download program materials. It also facilitates communication with administrators and participation in surveys.

**Highlights:** Access workshops, Save event dates to calendar, RSVP for events, Download program materials, In-app chat with mentor/mentee, Respond to program surveys, Contact administrators via Help requests

**Features:** macOS Compatibility

**In-app purchases:** none


### KAL School Bus

[App page](https://appshunter.io/ios/app/kal-school-bus/id6743203135)

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

**In-app purchases:** none


## Frequently asked questions

### Is Protege App free?

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

### Is KAL School Bus free?

KAL School Bus is free to download, with no in-app purchases.

### Do Protege App or KAL School Bus have ads?

Neither Protege App nor KAL School Bus shows ads.

### Which is updated more often, Protege App or KAL School Bus?

Protege App ships an update weekly, and KAL School Bus weekly. Most recently, Protege App was updated on November 2, 2026 and KAL School Bus 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.*