Comparison

Numerade 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

Numerade

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
Read full description

Struggling with tough homework problems? Unlock the power of learning with Numerade – your ultimate video homework helper! Numerade is designed to support you every step of the way. With our extensive library of video explanations and expert guidance, you can tackle any STEM subject with confidence. Key Features: • Textbook Questions: Find step-by-step video solutions to thousands of STEM textbook questions in math, science, and more. Say goodbye to confusion and hello to clear explanations. • Ask Questions: Stuck on a problem? Simply ask your question and get quick, expert educator answers tailored to your needs. • SnapSolve: Take a photo of your homework question, upload it, and get a detailed solution instantly. No typing required! • Ace AI Tutor: Access personalized step-by-step solutions crafted by our very own STEM AI Tutor. Dive deep into concepts with clear, engaging explanations. • Free video answers no need to subscribe by watching ads: Watch ad-supported videos for free, no subscription required! Learn at your pace without any hidden costs. • New User Experience: Enjoy a sleek, redesigned interface that makes navigating your study journey seamless and intuitive. • Transform your study sessions and achieve academic success with Numerade. Download now and experience the difference! • Upload Files for Answers: Need help with assignments? Upload images or files to receive accurate solutions from professional tutors. Download the app and discover why 97% of Numerade students report better grades today. Got a question or need support? Visit our Help Center - https://numerade.zendesk.com/ Privacy Policy - https://www.numerade.com/privacy-policy/ Terms of Use - https://www.numerade.com/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

Numerade4 screens
DrPhos' Ionic Compounds3 screens

Verdict

The call

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.

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

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Numerade versus DrPhos' Ionic Compounds: the parameters behind the verdict, then further details
ParameterNumeradeDrPhos' Ionic Compounds
PriceFree — better$0.99
Rating4.3 (643 ratings)4.9 (8 ratings) — better
Positive reviews48.9% of reviews100.0% of reviews — better
Number of ratings643 — better8
Update frequencyFortnightly — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size90 MB15 MB
Age rating4+4+
DeveloperNumerade Labs IncMonte L Helm

Customer experience

Numerade

All ratings643 ratings
Positive83.0%
Neutral2.0%
Negative14.9%
Written reviews274 reviews
Positive48.9%
Neutral2.9%
Negative48.2%

DrPhos' Ionic Compounds

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

Bugs and requests

Numerade

Reported bugs

3 issues
  • No option to cancel subscription on website
  • Continued charges after cancellation
  • Inability to remove payment information

Requested features

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

DrPhos' Ionic Compounds

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Numerade

Subscriptions3
  • Weekly7 Days trial$9.997 Days
  • Monthly7 Days trial$29.991 Month
  • Annual7 Days trial$95.901 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 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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