# ExploreMath vs Physics at Work For HKDSE XR

The clearest difference is update cadence: ExploreMath at every 6 days against Physics at Work For HKDSE XR's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

ExploreMath ships an update every 6 days, Physics at Work For HKDSE XR every 2 months. The most recent releases landed on June 5, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | ExploreMath | Physics at Work For HKDSE XR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Size | 4 MB | 350 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kai Hin Tsoi](https://appshunter.io/developer/1618879551) | [Oxford University Press (China)](https://appshunter.io/developer/448849899) |

## What reviewers say

### ExploreMath

[App page](https://appshunter.io/ios/app/exploremath/id1620810052)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics at Work For HKDSE XR

[App page](https://appshunter.io/ios/app/physics-at-work-for-hkdse-xr/id1659361572)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ExploreMath free?

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

### Is Physics at Work For HKDSE XR free?

Physics at Work For HKDSE XR is free to download, with no in-app purchases.

### Do ExploreMath or Physics at Work For HKDSE XR have ads?

Neither ExploreMath nor Physics at Work For HKDSE XR shows ads.

### Which is updated more often, ExploreMath or Physics at Work For HKDSE XR?

ExploreMath ships an update every 6 days, and Physics at Work For HKDSE XR every 2 months. Most recently, ExploreMath was updated on June 5, 2026 and Physics at Work For HKDSE XR on September 8, 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.*