# Cengage Read vs DrPhos' Solution Calculator

The clearest difference is price: Cengage Read at Free against DrPhos' Solution Calculator's $0.99. Cengage Read also leads on in-app purchases (none vs 10). On update cadence, ads, device support and iOS requirement there is nothing between them.

Cengage Read is free to download; DrPhos' Solution Calculator costs $0.99 up front. DrPhos' Solution Calculator sells 10 one-off in-app purchases. Cengage Read asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Cengage Read | DrPhos' Solution Calculator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.2 (4.2K ratings)](https://appshunter.io/ios/app/cengage-read/id6444260893/reviews)** | — |
| Number of ratings | **4.2K** | — |
| Positive reviews | 19.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 37 MB | 15 MB |
| Requires iOS | 18 | **17.2** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cengage Learning](https://appshunter.io/developer/371168145) | [Monte L Helm](https://appshunter.io/developer/1715082616) |

## What reviewers say

### Cengage Read

[App page](https://appshunter.io/ios/app/cengage-read/id6444260893)

Access and study your digital textbooks from anywhere. This app allows students to read, take notes, highlight, bookmark, and use text-to-speech for a flexible learning experience on the go.

**Highlights:** Read eTextbooks on the go, Take notes and highlight, Bookmark important sections, Text-to-speech functionality, Search keywords, Navigate via table of contents

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to read textbooks
- 🚀 Convenient for on-the-go learning
- 👍 Useful for listening to audio while commuting
- 👍 Allows highlighting and note-taking

**What reviewers complain about**

- 🐛 Buggy and glitchy
- 🔥 Poor text formatting and layout
- 👎 Difficult to navigate and use
- 🔒 Login and account issues
- 🔍 Missing key features like split-screen and assignment tracking

**Reported bugs**

- Frequent crashes and sign-outs
- Inconsistent highlighting and note-taking functionality
- Inability to view full pages and content
- Text-to-speech feature not working properly

**Requested features**

- Improve text formatting and layout
- Add split-screen support for note-taking
- Enhance accessibility features like text-to-speech
- Integrate assignment and due date tracking


### DrPhos' Solution Calculator

[App page](https://appshunter.io/ios/app/drphos-solution-calculator/id6478795025)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| General Chemistry Naming | $0.99 | one-time |
| Molar Mass Calculator | $0.99 | one-time |
| Stoichiometry | $0.99 | one-time |
| Reaction Balancer | $0.99 | one-time |
| Solution Concentrations | $0.99 | one-time |
| pH Calculator | $0.99 | one-time |
| Kinetics | $0.99 | one-time |
| Quadratic Equation Solver | $0.99 | one-time |
| Science Calculator | $0.99 | one-time |
| Significant Figures Counter | $0.99 | one-time |


## Frequently asked questions

### Is Cengage Read free?

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

### Is DrPhos' Solution Calculator free?

DrPhos' Solution Calculator costs $0.99, and also offers in-app purchases.

### Do Cengage Read or DrPhos' Solution Calculator have ads?

Neither Cengage Read nor DrPhos' Solution Calculator shows ads.

### Which is updated more often, Cengage Read or DrPhos' Solution Calculator?

Cengage Read ships an update every 2 months, and DrPhos' Solution Calculator every 2 months. Most recently, Cengage Read was updated on November 3, 2026 and DrPhos' Solution Calculator on October 25, 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.*