# Numerade vs DrPhos' Ionic Compounds

The clearest difference is review sentiment: DrPhos' Ionic Compounds at 100% against Numerade's 49%. DrPhos' Ionic Compounds also leads on rating (4.9 vs 4.3) and ads (none vs shown). Numerade's advantage is price (Free vs $0.99) and ratings volume (643 vs 8). On update cadence, in-app purchases and device support there is nothing between them.

Numerade is free to download; DrPhos' Ionic Compounds costs $0.99 up front. Numerade sells 3 in-app purchases, starting at $9.99 per 7 days and DrPhos' Ionic Compounds sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

DrPhos' Ionic Compounds holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Numerade has 643 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 49% of Numerade's written reviews are positive against 100% of DrPhos' Ionic Compounds's.

Numerade ships an update fortnightly, DrPhos' Ionic Compounds every 3 weeks. The most recent releases landed on September 21, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | Numerade | DrPhos' Ionic Compounds |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.3 (643 ratings)](https://appshunter.io/ios/app/numerade-homework-help/id1509857922/reviews) | **[4.9 (8 ratings)](https://appshunter.io/ios/app/drphos-ionic-compounds/id6473097401/reviews)** |
| Number of ratings | **643** | 8 |
| Positive reviews | 48.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 90 MB | 15 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Numerade Labs Inc](https://appshunter.io/developer/1509857921) | [Monte L Helm](https://appshunter.io/developer/1715082616) |

## What reviewers say

### Numerade

[App page](https://appshunter.io/ios/app/numerade-homework-help/id1509857922)

Get instant help with tough STEM homework problems. Access a vast library of video explanations, ask expert educators questions, and use AI-powered tutors for step-by-step solutions. Snap photos of your questions for quick answers and upload files for assignment assistance.

**Highlights:** Video explanations for STEM subjects, Ask expert educators questions, Snap photo for instant solutions, AI Tutor for step-by-step answers, Upload files for assignment help, Ad-supported free video answers

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Monthly | $29.99 | per month |
| Annual | $95.90 | per year |

**What reviewers like**

- 👍 Helpful for improving grades
- 🚀 Detailed step-by-step video solutions
- 📚 Vast library of textbook solutions
- 🤖 Useful AI tutor feature
- 💡 Great resource for STEM students

**What reviewers complain about**

- 🐛 Difficult to cancel subscription
- 💰 Expensive subscription fees
- 🤖 Inaccurate or irrelevant AI-generated answers
- 📱 Mobile app issues (text cutoff, freezing, etc.)
- 🔒 Unauthorized charges even after cancellation

**Reported bugs**

- No option to cancel subscription on website
- Continued charges after cancellation
- Inability to remove payment information

**Requested features**

- Easier subscription cancellation process
- Improved mobile app experience
- More textbook options, especially for high school students
- Better customer support responsiveness


### DrPhos' Ionic Compounds

[App page](https://appshunter.io/ios/app/drphos-ionic-compounds/id6473097401)

This app helps students learn and practice forming correct chemical formulas for ionic compounds. It supports a wide range of ions, including polyatomic ones, and dynamically generates formulas with proper subscripts and parentheses. It's designed to reinforce naming rules and charge balancing through an interactive interface.

**Highlights:** Extensive cation and anion list, Support for polyatomic ions, Real-time formula generation, Subscript and parenthesis formatting, Reinforces naming rules, Charge balancing practice

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ionic Compound Builder | Free | one-time |
| Science Calculator | $0.99 | one-time |
| Significant Figures Counter | $0.99 | one-time |
| Quadratic Equation Solver | $0.99 | one-time |
| Kinetics | $0.99 | one-time |
| Molar Mass Calculator | $0.99 | one-time |
| Naming Compounds | $0.99 | one-time |
| Reaction Balancer | $0.99 | one-time |
| Stoichiometry | $0.99 | one-time |
| Solution Concentrations | $0.99 | one-time |
| pH Calculator | $0.99 | one-time |


## Frequently asked questions

### Is Numerade free?

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

### Is DrPhos' Ionic Compounds free?

DrPhos' Ionic Compounds costs $0.99, and also offers in-app purchases.

### Which has better reviews, Numerade or DrPhos' Ionic Compounds?

DrPhos' Ionic Compounds is rated higher. Numerade averages 4.3 out of 5 from 643 ratings, while DrPhos' Ionic Compounds averages 4.9 from 8 ratings.

### Do Numerade or DrPhos' Ionic Compounds have ads?

Numerade shows ads; DrPhos' Ionic Compounds does not.

### Which is updated more often, Numerade or DrPhos' Ionic Compounds?

Numerade ships an update fortnightly, and DrPhos' Ionic Compounds every 3 weeks. Most recently, Numerade was updated on September 21, 2026 and DrPhos' Ionic Compounds on June 2, 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.*