Comparison

Chemguy vs eedge

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

Head to head
About

Chemguy

Master high school, AP, IB, and first-year university chemistry with over 200 video lessons, comprehensive notes, and over 1000 practice problems. Interactive quizzes and unit exams reinforce learning, with direct messaging support for personalized help.

Highlights
  • Over 200 video lessons
  • Comprehensive classroom notes
  • 1000+ practice problems
  • 100+ interactive quizzes
  • Unit exams
  • Direct messaging support
Features
Read full description

The Chemguy App has arrived! I'm Rob Lederer and I taught chemistry for 35 years. I've taught all high school levels of chemistry, including AP Chemistry and IB Chemistry, too! Since 2003, I have been known as Chemguy to the students outside of my classroom. My Chemguy YouTube videos have millions of views. The Chemguy App that I have personally built has distilled my teaching career into a course that completely covers high school chemistry, AP and IB material, and first year university chemistry. Everything is covered: The Periodic Table, Compounds and Reactions, Stoichiometry, Solutions, Gases, Atomic Theory, Chemical Bonding, Molecular Shapes, Energy, Electrochemistry, Chemical Equilibrium, Acids and Bases, Organic Chemistry, Chemical Kinetics, Thermodynamics, and Calculating Uncertainty Values. Phew! This is what you get in the Chemguy App: 1. Over 200 video lessons, where I teach all the chemistry principles, give detailed explanations, and problem-solve through all the calculations in every unit of study. 2. My entire classroom note package. All the material explained, with tables and diagrams and pictures. At the end of each lesson there are practice problems, over 1000 in all, to hone your chemistry skills. 3. Tests! I have made close to 100 interactive quizzes for all the lessons and summary unit exams, too! That's a total of over 1000 questions to practice! 4. Chemguy Messaging. After going through all of the above, is there still something that you need help with? Send me a text in the chat function of the app! Let's talk about it! So, watch the videos, read the notes, do the practice problems, have fun with the quizzes, and cap each unit off with the exam. And if something is bugging you, chemistry-wise, send me a message and let's chat about it! If you want to know more about me, what I've done and what I continue to do, please visit my website, roblederer.ca

About

eedge

This platform offers recorded and live lectures from experienced teachers to supplement classroom learning. It aims to provide quality education at affordable prices, reaching students who may lack sufficient resources.

Highlights
  • Recorded lectures
  • Live lectures
  • Experienced teachers
  • Affordable pricing
  • Quality education
Features
Read full description

“eedge” is an online learning platform started by two of the most dedicated and finest teachers. The founders Mr. Sudeep Mehta and Mr. Brijesh Mehta are Physics and Chemistry teachers, respectively. After having taught thousands of students in classroom for more than 2 decades, the real brothers understand the problems faced by a student in class room learning. It is difficult for a student to focus on studies in class all the time during the long schooling hours. Important concepts are easily missed by a student and so a second resource of learning is essential. The other intention is to reach out to those unprivileged students who are unable to get quality education due to lack of sufficient means and resources. We are committed to providing the best content at affordable prices to those who need them the most.

Screenshots

Chemguy4 screens
eedge4 screens

Verdict

The call

The clearest difference is in-app purchases: eedge at none against Chemguy's 1. eedge also leads on update cadence (every 5 weeks vs every 41 months) and iOS requirement (12.4 vs 15.6). On price, review sentiment, ads and monetization model 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

Both are free to download. Chemguy sells 1 one-off in-app purchase. eedge asks for nothing beyond the download.

UpkeepUpdate frequency

Chemguy ships an update every 41 months, eedge every 5 weeks. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.

Scorecard3 real differences · 7 level
Chemguy versus eedge: the parameters behind the verdict, then further details
ParameterChemguyeedge
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings4 — better—
Update frequencyEvery 41 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.4 — better
Further details — not scored
Size72 MB190 MB
Age rating4+4+
DeveloperRob LedererASHUTOSH EDUTECH PRIVATE LIMITED

Customer experience

Chemguy

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

eedge

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Chemguy

One-time1
  • Complete Chemguy Course EntryFree
None

eedge

No in-app purchases

Questions

Is Chemguy free?
Chemguy is free to download, with in-app purchases available.
Is eedge free?
eedge is free to download, with no in-app purchases.
Do Chemguy or eedge have ads?
Neither Chemguy nor eedge shows ads.
Which is updated more often, Chemguy or eedge?
Chemguy ships an update every 41 months, and eedge every 5 weeks. Most recently, Chemguy was updated on October 15, 2026 and eedge on October 4, 2026.

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