Comparison

Chem AI vs DrPhos' Ionic Compounds

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Chem AI

Instantly solve any chemistry problem with step-by-step explanations. Upload or photograph your questions, and get detailed solutions for various chemistry topics, from high school to advanced research. Offers a free trial before subscription.

Highlights
  • Photo recognition for chemistry problems
  • Step-by-step solution explanations
  • Supports high school to doctoral research topics
  • Detailed math solutions
  • Copy and share solutions
Features
Read full description

Solve any chemistry problem ASAP with Chem AI, a step-by-step chemistry solver app! Download now for FREE. Got a tricky chemistry question? Need instant step-by-step explanations? Chem AI is here to save you. We got you covered for multiple choice, word, diagram, math, or any chemistry problem. Just upload or take a photo of your chemistry problem, and Chem AI instantly recognizes it and helps you solve it with a thorough explanation. KEY FEATURES - Upload or take a photo of a handwritten or digital chemistry problem. - Copy and share the detailed solutions. - Topics cover all types of chemistry, from high school to doctoral research. - Math solutions are provided with detailed steps. - We provide a free trial to test out the app. Subscription Required To continue accessing all features of Chem AI, a subscription is required. By using Chem AI, you accept our Terms of Use and Privacy Policy. Privacy Policy: https://zipoapps.com/chemaiios/privacy/ Terms: https://zipoapps.com/chemaiios/terms/

About

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.

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
Read full description

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

Chem AI4 screens
DrPhos' Ionic Compounds3 screens

Verdict

The call

The clearest difference is review sentiment: DrPhos' Ionic Compounds at 100% against Chem AI's 20%. DrPhos' Ionic Compounds also leads on rating (4.9 vs 4.4) and ads (none vs shown). Chem AI's advantage is price (Free vs $0.99) and ratings volume (824 vs 8). On update cadence, in-app purchases, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Chem AI is free to download; DrPhos' Ionic Compounds costs $0.99 up front. Chem AI sells 15 in-app purchases, starting at $0.99 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.

ReceptionRating · Positive reviews · Number of ratings

DrPhos' Ionic Compounds holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: Chem AI has 824 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 20% of Chem AI's written reviews are positive against 100% of DrPhos' Ionic Compounds's.

UpkeepUpdate frequency

Chem AI ships an update fortnightly, DrPhos' Ionic Compounds every 3 weeks. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

Scorecard6 real differences · 4 level
Chem AI versus DrPhos' Ionic Compounds: the parameters behind the verdict, then further details
ParameterChem AIDrPhos' Ionic Compounds
PriceFree — better$0.99
Rating4.4 (824 ratings)4.9 (8 ratings) — better
Positive reviews20.0% of reviews100.0% of reviews — better
Number of ratings824 — better8
Update frequencyFortnightly — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationSubscriptionPaid — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size149 MB15 MB
Age rating4+4+
DeveloperZipoAppsMonte L Helm

Customer experience

Chem AI

All ratings818 ratings
Positive83.5%
Neutral3.1%
Negative13.4%
Written reviews40 reviews
Positive20.0%
Neutral5.0%
Negative75.0%

DrPhos' Ionic Compounds

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Chem AI

Reported bugs

2 issues
  • Freezes or goes blank when trying to get answers
  • Incompatible with some chemistry problems

Requested features

3 requests
  • Improve accuracy for organic chemistry and physical chemistry
  • Add step-by-step explanations for free users
  • Improve subscription management and cancellation process

DrPhos' Ionic Compounds

Not enough reviews yet to summarise bugs or requests.

In-app purchases

15 purchases

Chem AI

Subscriptions15
  • Unlimited Access3 Days trial$0.997 Days
  • Unlimited Access3 Days trial$2.997 Days
  • Unlimited Access3 Days trial$3.997 Days
Show 12 more
  • Unlimited Access3 Days trial$4.997 Days
  • Unlimited Access3 Days trial$5.997 Days
  • Chem AI - Chem Solver Weekly3 Days trial$5.997 Days
  • Unlimited Access3 Days trial$6.997 Days
  • Unlimited Access3 Days trial$7.997 Days
  • Unlimited Access3 Days trial$8.997 Days
  • Unlimited Access3 Days trial$9.991 Year
  • Unlimited Access3 Days trial$19.991 Month
  • Unlimited Access3 Days trial2 variants$29.991 Year
  • Chem AI - Chem Solver Yearly$34.991 Year
  • Unlimited Access3 Days trial$39.991 Year
  • Unlimited Access3 Days trial$49.991 Year
11 purchases

DrPhos' Ionic Compounds

One-time11
  • Ionic Compound BuilderFree
  • Science Calculator$0.99
  • Significant Figures Counter$0.99
Show 8 more
  • 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 Chem AI free?
Chem AI 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, Chem AI or DrPhos' Ionic Compounds?
DrPhos' Ionic Compounds is rated higher. Chem AI averages 4.4 out of 5 from 824 ratings, while DrPhos' Ionic Compounds averages 4.9 from 8 ratings.
Do Chem AI or DrPhos' Ionic Compounds have ads?
Chem AI shows ads; DrPhos' Ionic Compounds does not.
Which is updated more often, Chem AI or DrPhos' Ionic Compounds?
Chem AI ships an update fortnightly, and DrPhos' Ionic Compounds every 3 weeks. Most recently, Chem AI was updated on October 24, 2026 and DrPhos' Ionic Compounds on October 16, 2026.

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