# Xylem Parent App vs PhysicsXpert

The clearest difference is ads: PhysicsXpert at none against Xylem Parent App's shown. PhysicsXpert also leads on update cadence (every 3 months vs every 7 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Xylem Parent App ships an update every 7 months, PhysicsXpert every 3 months. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Xylem Parent App | PhysicsXpert |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 3 months** |
| Size | 71 MB | 253 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [XYLEM LEARNING PRIVATE LIMITED](https://appshunter.io/developer/1651563286) | [Abdul Rafeeque Parakkal](https://appshunter.io/developer/1464562964) |

## What reviewers say

### Xylem Parent App

[App page](https://appshunter.io/ios/app/xylem-parent-app/id6742320327)

**In-app purchases:** none


### PhysicsXpert

[App page](https://appshunter.io/ios/app/physicsxpert/id6749925655)

**In-app purchases:** none


## Frequently asked questions

### Is Xylem Parent App free?

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

### Is PhysicsXpert free?

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

### Do Xylem Parent App or PhysicsXpert have ads?

Xylem Parent App shows ads; PhysicsXpert does not.

### Which is updated more often, Xylem Parent App or PhysicsXpert?

Xylem Parent App ships an update every 7 months, and PhysicsXpert every 3 months. Most recently, Xylem Parent App was updated on September 8, 2026 and PhysicsXpert on September 15, 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.*