# Studdy vs DrPhos' Solution Calculator

The clearest difference is price: Studdy at Free against DrPhos' Solution Calculator's $0.99. Studdy also leads on update cadence (every 10 days vs every 2 months) and iOS requirement (15.0 vs 17.2). On ads, in-app purchases and device support there is nothing between them.

Studdy is free to download; DrPhos' Solution Calculator costs $0.99 up front. Studdy sells 35 in-app purchases, starting at $1.99 per 7 days and DrPhos' Solution Calculator sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Studdy ships an update every 10 days, DrPhos' Solution Calculator every 2 months. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Studdy | DrPhos' Solution Calculator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (13K ratings)](https://appshunter.io/ios/app/studdy-ai-tutor-and-math-solver/id6450114499/reviews)** | — |
| Number of ratings | **13K** | — |
| Positive reviews | 89.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | Freemium | — |
| Size | 64 MB | 15 MB |
| Requires iOS | **15.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Studdy, LLC](https://appshunter.io/developer/1680988865) | [Monte L Helm](https://appshunter.io/developer/1715082616) |

## What reviewers say

### Studdy

[App page](https://appshunter.io/ios/app/studdy-ai-tutor-and-math-solver/id6450114499)

This AI-powered tutor assists students with homework by providing step-by-step explanations for math and science problems. It offers personalized tutoring, video tutorials, and practice problems to help improve understanding and grades.

**Highlights:** AI-powered step-by-step problem solver, Photo scanning for homework problems, Personalized 1:1 AI tutoring, Video tutorials for complex topics, Practice problem generation, Graphing for visual understanding

**Features:** Family Sharing, Vision Pro support

**In-app purchases (35)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Studdy Unlimited | $1.99 | per 7 days |
| Studdy Unlimited | $1.99 | per 7 days |
| Studdy Unlimited | $4.99 | per 7 days |
| Studdy Unlimited | $5.99 | per 7 days |
| Studdy Unlimited | $6.99 | per 7 days |
| Studdy Unlimited | $6.99 | per 7 days |
| Studdy Unlimited | $6.99 | per 7 days |
| Power Monthly | $9.99 | per month |
| Studdy Lite | $9.99 | per month |
| Studdy Lite | $9.99 | per month |
| Studdy Unlimited | $9.99 | per month |
| Studdy Unlimited | $9.99 | per month |
| Studdy Pro | $14.99 | per month |
| Power Monthly | $19.99 | per month |
| Studdy Unlimited | $19.99 | per month |
| Studdy Unlimited | $19.99 | per month |
| Studdy Unlimited | $29.99 | per month |
| Studdy Unlimited | $39.99 | per year |
| Power Annual | $59.99 | per year |
| Studdy Lite | $59.99 | per year |
| Studdy Unlimited | $59.99 | per year |
| Studdy Lite | $59.99 | per year |
| Studdy Unlimited | $59.99 | per year |
| Studdy Unlimited | $69.99 | per year |
| Studdy Unlimited | $69.99 | per year |
| Studdy Pro | $95.99 | per year |
| Studdy Unlimited | $99.99 | per year |
| Studdy Unlimited | $99.99 | per year |
| Studdy Unlimited | $143.99 | per year |
| Studdy Unlimited | $143.99 | per year |
| Studdy Unlimited | $179.99 | per year |
| Studdy Unlimited | $179.99 | per year |
| 5 Snaps Pack | $0.99 | one-time |
| 10 Snaps Pack | $0.99 | one-time |
| 30 Snaps Pack | $4.99 | one-time |

**What reviewers like**

- 🚀 Helpful and accurate solutions
- 👍 Detailed step-by-step explanations
- 🤖 Powerful AI assistant
- 💡 Versatile for all subjects
- 🆓 Free to use with some limitations

**What reviewers complain about**

- 🔒 Limited free usage
- 💰 Paid version required for full access
- 🐛 Occasional inaccurate solutions
- 🔍 Camera issues with some users

**Reported bugs**

- Inconsistent performance across devices
- Freezing or crashing on certain devices

**Requested features**

- More free usage allowance
- Improved accuracy and reliability
- Enhanced user interface and navigation


### 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 Studdy free?

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

### Is DrPhos' Solution Calculator free?

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

### Do Studdy or DrPhos' Solution Calculator have ads?

Neither Studdy nor DrPhos' Solution Calculator shows ads.

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

Studdy ships an update every 10 days, and DrPhos' Solution Calculator every 2 months. Most recently, Studdy was updated on October 18, 2026 and DrPhos' Solution Calculator on October 7, 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.*