# DrPhos' Ionic Compounds vs StudyFetch

DrPhos' Ionic Compounds and StudyFetch both sit at 4.9 stars, but that hides the real split: 100% of DrPhos' Ionic Compounds's written reviews are positive against 32% of StudyFetch's. StudyFetch's advantage is price (Free vs $0.99) and ratings volume (14K vs 8). On rating, ads, in-app purchases and device support there is nothing between them.

StudyFetch is free to download; DrPhos' Ionic Compounds costs $0.99 up front. DrPhos' Ionic Compounds sells 11 one-off in-app purchases and StudyFetch sells 12 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for DrPhos' Ionic Compounds against 4.8 for StudyFetch. That said, the two scores are not equally well evidenced: StudyFetch has 14K ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 100% of DrPhos' Ionic Compounds's written reviews are positive against 32% of StudyFetch's.

DrPhos' Ionic Compounds ships an update every 3 weeks, StudyFetch every 8 days. The most recent releases landed on June 2, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | DrPhos' Ionic Compounds | StudyFetch |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/drphos-ionic-compounds/id6473097401/reviews)** | [4.8 (14K ratings)](https://appshunter.io/ios/app/studyfetch-ai-tutor/id6663574866/reviews) |
| Number of ratings | 8 | **14K** |
| Positive reviews | **100.0% of reviews** | 32.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | — | **#77** |
| Size | 15 MB | 237 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Monte L Helm](https://appshunter.io/developer/1715082616) | [Study Fetch](https://appshunter.io/developer/1764746060) |

## What reviewers say

### 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 |


### StudyFetch

[App page](https://appshunter.io/ios/app/studyfetch-ai-tutor/id6663574866)

**Currently charting:** #77 Top Free · Education, #186 Top Grossing · Education (US App Store)

Transform your course materials into interactive study tools with AI. Upload lectures, PDFs, or videos to generate flashcards, quizzes, and notes. Engage with a personal AI tutor for real-time learning support and track your progress.

**Highlights:** AI-generated flashcards and quizzes, Personal AI voice tutor, Real-time lecture transcription and notes, Progress tracking and achievements, Support for 20+ languages, Converts lectures, PDFs, slides, videos to study formats

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StudyFetch Explainers Basic | $9.99 | per month |
| StudyFetch Explainer Basic | $9.99 | per month |
| StudyFetch Explainers Premium | $19.99 | per month |
| StudyFetch Explainer Premium | $19.99 | per month |
| StudyFetch Premium Monthly | $19.99 | per month |
| StudyFetch Premium Quarterly | $29.00 | per 3 months |
| StudyFetch Explainer Basic | $83.99 | per year |
| StudyFetch Premium YearlyTrial | $96.00 | per year |
| StudyFetch Premium Yearly | $96.00 | per year |
| StudyFetch Explainer Premium | $167.99 | per year |
| Call Spark.E 1 Hour | $7.49 | one-time |
| Call Spark.E 5 Hours | $25.00 | one-time |

**What reviewers like**

- 🚀 Great app
- 👍 User friendly
- 🚀 Simplifies learning
- 👍 Helpful with studies
- 🚀 Effective AI study partner

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Laggy and glitchy
- 🐛 Navigation issues
- 🐛 Bugs and errors
- 💰 Overpriced subscription

**Reported bugs**

- Inability to upload or load materials
- Chatbot and tutor features not working
- Inconsistent performance across platforms
- Account and payment issues

**Requested features**

- Sync accounts across devices
- Improve PDF and document handling
- Enhance live lecture recording and transcription
- Add more test questions and practice content


## Frequently asked questions

### Is DrPhos' Ionic Compounds free?

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

### Is StudyFetch free?

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

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

DrPhos' Ionic Compounds is rated higher. DrPhos' Ionic Compounds averages 4.9 out of 5 from 8 ratings, while StudyFetch averages 4.8 from 14K ratings.

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

Neither DrPhos' Ionic Compounds nor StudyFetch shows ads.

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

DrPhos' Ionic Compounds ships an update every 3 weeks, and StudyFetch every 8 days. Most recently, DrPhos' Ionic Compounds was updated on June 2, 2026 and StudyFetch on September 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.*