# PACS#WATS vs Physics Solver

The clearest difference is in-app purchases: PACS#WATS at none against Physics Solver's 2. PACS#WATS also leads on update cadence (every 9 days vs every 3 weeks) and iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Physics Solver sells 2 in-app purchases, starting at $9.99 per 7 days. PACS#WATS asks for nothing beyond the download.

PACS#WATS ships an update every 9 days, Physics Solver every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | PACS#WATS | Physics Solver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (25 ratings)](https://appshunter.io/ios/app/physics-solver-ai-study/id6743952927/reviews)** |
| Number of ratings | — | **25** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 117 MB | 13 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Passport Academy Charter School](https://appshunter.io/developer/1691466360) | [Liberace Pte. Ltd.](https://appshunter.io/developer/1851362112) |

## What reviewers say

### PACS#WATS

[App page](https://appshunter.io/ios/app/pacswats/id6449994216)

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

**In-app purchases:** none


### Physics Solver

[App page](https://appshunter.io/ios/app/physics-solver-ai-study/id6743952927)

This AI-powered app provides step-by-step solutions and detailed explanations for a wide range of physics topics. It helps students and professionals deepen their understanding of complex concepts with an intuitive interface and advanced algorithms.

**Highlights:** Step-by-step physics solutions, Detailed explanations, Covers various physics branches, Formula calculators, Unit conversions, Kinematics solvers, Circuit analyzers

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $9.99 | per 7 days |
| Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is PACS#WATS free?

PACS#WATS is free to download, with no in-app purchases.

### Is Physics Solver free?

Physics Solver is free to download, with in-app purchases available.

### Do PACS#WATS or Physics Solver have ads?

Neither PACS#WATS nor Physics Solver shows ads.

### Which is updated more often, PACS#WATS or Physics Solver?

PACS#WATS ships an update every 9 days, and Physics Solver every 3 weeks. Most recently, PACS#WATS was updated on November 3, 2026 and Physics Solver on October 30, 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.*