SA Geo vs DrPhos' Ionic Compounds
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SA Geo
Explore the geography of South America through interactive activities. Learn about countries, capitals, national parks, and animals with engaging quizzes and challenges.
- Country identification
- Capital city quizzes
- National park exploration
- Animal fact learning
- Geography challenges
- Grab Bag activity
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South American Geography is a program designed to explore the geography, countries, capitals, national parks, and animals in South America. There are six different activities including: • Countries • Capitals • Geography • National Parks • Animals • Grab Bag
DrPhos' Ionic Compounds
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.
- Extensive cation and anion list
- Support for polyatomic ions
- Real-time formula generation
- Subscript and parenthesis formatting
- Reinforces naming rules
- Charge balancing practice
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Master Ionic Compounds with Ease The Ionic Compound Builder helps students learn and practice forming correct chemical formulas using a wide range of cations and anions—including polyatomic ions. Simply select a cation and an anion, and the app dynamically generates the proper formula with correct subscripts and parentheses. Designed for high school and college chemistry students, this tool reinforces naming rules and charge balancing through an intuitive, interactive interface. Features: • Extensive built-in list of common cations and anions • Support for monoatomic and polyatomic ions • Real-time chemical formula generation • Proper use of subscripts and parentheses • Visual formatting to emphasize structure and charge Whether you’re learning ionic bonding for the first time or reviewing for an exam, this tool is an essential companion for mastering chemical formulas.
Screenshots
Verdict
The clearest difference is price: SA Geo at Free against DrPhos' Ionic Compounds's $0.99. SA Geo also leads on iOS requirement (11.0 vs 17.0). DrPhos' Ionic Compounds's advantage is update cadence (every 3 weeks vs every 2 months). On rating, review sentiment, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
SA Geo is free to download; DrPhos' Ionic Compounds costs $0.99 up front. SA Geo sells 1 one-off in-app purchase and DrPhos' Ionic Compounds sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for SA Geo against 4.9 for DrPhos' Ionic Compounds. Both are backed by a comparable volume of ratings — 3 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
SA Geo ships an update every 2 months, DrPhos' Ionic Compounds every 3 weeks. The most recent releases landed on June 3, 2026 and June 2, 2026 respectively.
| Parameter | SA Geo | DrPhos' Ionic Compounds |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (3 ratings) — better | 4.9 (8 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 3 | 8 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 139 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Darren McNally | Monte L Helm |
Customer experience
SA Geo
DrPhos' Ionic Compounds
In-app purchases
SA Geo
- Unlock Pro$1.99
DrPhos' Ionic Compounds
- Ionic Compound BuilderFree
- Science Calculator$0.99
- Significant Figures Counter$0.99
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- Quadratic Equation Solver$0.99
- Kinetics$0.99
- Molar Mass Calculator$0.99
- Naming Compounds$0.99
- Reaction Balancer$0.99
- Stoichiometry$0.99
- Solution Concentrations$0.99
- pH Calculator$0.99
Questions
Is SA Geo free?
Is DrPhos' Ionic Compounds free?
Which has better reviews, SA Geo or DrPhos' Ionic Compounds?
Do SA Geo or DrPhos' Ionic Compounds have ads?
Which is updated more often, SA Geo or DrPhos' Ionic Compounds?
Other comparisons
