# Chemical Solution Simple vs Physiology & Pathophysiology

The clearest difference is review sentiment: Chemical Solution Simple at 100% against Physiology & Pathophysiology's 0%. Chemical Solution Simple also leads on update cadence (every 3 months vs every 51 months) and price ($2.99 vs $3.99). Physiology & Pathophysiology's advantage is iOS requirement (12.4 vs 17.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

Chemical Solution Simple costs $2.99 and Physiology & Pathophysiology $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Chemical Solution Simple ships an update every 3 months, Physiology & Pathophysiology every 51 months. The most recent releases landed on October 10, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Chemical Solution Simple | Physiology & Pathophysiology |
| --- | --- | --- |
| Price | **$2.99** | $3.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chemical-solution-simple/id1080912267/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 51 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 10 MB |
| Requires iOS | 17.0 | **12.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Roman Volinsky](https://appshunter.io/developer/977951850) | [Tourkia CHIHI](https://appshunter.io/developer/1105976811) |

## What reviewers say

### Chemical Solution Simple

[App page](https://appshunter.io/ios/app/chemical-solution-simple/id1080912267)

This app assists in preparing chemical solutions through dissolution and dilution. It calculates moles, molar masses, required solute weights, and starting solution volumes, supporting various concentration units.

**Highlights:** Solution preparation by dissolution, Solution preparation by dilution, Mole calculation, Molar mass analysis, Required solute weight calculation, Starting solution volume calculation, Supports Molar, mM, uM, g/l, mg/l units

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

**In-app purchases:** none


### Physiology & Pathophysiology

[App page](https://appshunter.io/ios/app/physiology-and-pathophysiology/id1219781876)

Prepare for advanced medical exams with comprehensive study materials. Features flashcards, practice questions, and multiple study modes for efficient learning and memorization. Designed for students and professionals in the medical field.

**Highlights:** Offline functionality, Dedicated exam questions, Study notes, 5 study modes, Shareable content, Flashcards for quick memorization

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

**In-app purchases:** none


## Frequently asked questions

### Is Chemical Solution Simple free?

Chemical Solution Simple costs $2.99, with no in-app purchases.

### Is Physiology & Pathophysiology free?

Physiology & Pathophysiology costs $3.99, with no in-app purchases.

### Do Chemical Solution Simple or Physiology & Pathophysiology have ads?

Neither Chemical Solution Simple nor Physiology & Pathophysiology shows ads.

### Which is updated more often, Chemical Solution Simple or Physiology & Pathophysiology?

Chemical Solution Simple ships an update every 3 months, and Physiology & Pathophysiology every 51 months. Most recently, Chemical Solution Simple was updated on October 10, 2026 and Physiology & Pathophysiology on October 22, 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.*