Chemguy vs Unreal Chemist
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Over 200 video lessons
- Comprehensive classroom notes
- 1000+ practice problems
- 100+ interactive quizzes
- Unit exams
- Direct messaging support
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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
Unreal Chemist
Explore a virtual chemistry lab on your phone. Mix chemicals, observe reactions, and conduct over 750 unique simulations with more than 150 available substances. Adjust variables like temperature and concentration to understand chemical principles.
- Mix chemicals for reactions
- Burn salts for colorful flames
- Heat elements for color emission
- Adjust reactant concentration and quantity
- Regulate reaction temperature
- Control time flow (slow/fast forward)
- Monitor pH changes with indicators
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Chemistry experiments on your smartphones. You can Mix chemicals to see how they react, Burn salts to colorful flames and Heat elements to see what colors it emits There are 150 plus chemicals available to experiment with and more than 750 unique experiment simulations. Key Highlights - Adjusting the concentration and quantity of the reactants. - Regulate the temperature of the reaction. - Modify temperatures in precipitation reactions and see the effect of temperatures on solubility. - Slow down / Fast forward time. - Check the PH and PH change in a reaction, using Indicators. - Ignite flammable gases formed during reaction. Disclaimer Some reactions you will be doing in Unreal Chemist are extremely dangerous and may cause serious injury if conducted in real word. Even though most of the reactions are accurate to the real world, some reactions may be theoretical since physical verification of some reactions are not completed as of now.
Screenshots
Verdict
The clearest difference is rating: Chemguy at 5.0 against Unreal Chemist's 4.5. Chemguy also leads on ads (none vs shown) and review sentiment (100% vs 73%). Unreal Chemist's advantage is update cadence (every 2 weeks vs every 41 months) and ratings volume (68 vs 4). On price, 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
Both are free to download. Chemguy sells 1 one-off in-app purchase and Unreal Chemist sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Chemguy holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Unreal Chemist has 68 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of Chemguy's written reviews are positive against 73% of Unreal Chemist's.
Chemguy ships an update every 41 months, Unreal Chemist every 2 weeks. Both last shipped on November 3, 2026.
| Parameter | Chemguy | Unreal Chemist |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.5 (68 ratings) |
| Positive reviews | 100.0% of reviews — better | 73.4% of reviews |
| Number of ratings | 4 | 68 — better |
| Update frequency | Every 41 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 11.0 — better |
| Further details — not scored | ||
| Size | 72 MB | 342 MB |
| Age rating | 4+ | 4+ |
| Developer | Rob Lederer | ZipoApps |
Customer experience
Chemguy
Unreal Chemist
Bugs and requests
Chemguy
Not enough reviews yet to summarise bugs or requests.
Unreal Chemist
Reported bugs
17 issues- Sulfuric acid not dissolving with salts
- Heating solution during titration
- Watch ad for premium session not working
- Mixing game not always working intuitively
- Buttons on iPhone blocked by camera
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- Some metal flame colors don't match description
- Program sometimes locks up
- Music setting resets after closing program
- Some reactions don't show the full formula
- App crashes on opening
- App gets stuck on the home page
- App kicks the user out
- App opens to a blank grey or white screen
- App won't open
- App crashes when it takes too long to open
- Free version has only 2 reactions
- Interface is buggy (e.g., clicking play sends to home page)
Requested features
32 requests- Add more elements (e.g., Mn, H, O, Cl, F, Pb)
- Add more acids (e.g., Chloroauric acid, Vanadic acid, Perrhenic acid)
- Add more bases and solvents (e.g., styrofoam, polystyrene, ethanol, acetone)
- Add gases (e.g., Chlorine, Fluorine, Hydrogen, Oxygen)
- Option to specify amounts of chemicals to add
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- Kid version with simplified instructions
- Add crafting or new science game modes
- Add more glassware and scientific equipment
- Reintroduce feature to see compound information
- Add challenges or daily missions
- Add ability to use previously made chemicals for new reactions
- Add definitions for elements and reactions
- Add a story or background context
- Add more reactions and compounds
- Add liquid elements (e.g., liquid oxygen, hydrogen)
- Add more bases
- Add more solvents
- Add styrofoam/polystyrene
- Add more elements
- Add more acids
- Add more bases
- Add more solvents
- Add more glassware
- Add more scientific equipment
- Add more reactions
- Add more compounds
- Add more elements
- Add more reactions
- Add more compounds
- Add more elements
- Add more reactions
- Add more compounds
In-app purchases
Chemguy
- Complete Chemguy Course EntryFree
Unreal Chemist
- Premium Version$5.99
Questions
Is Chemguy free?
Is Unreal Chemist free?
Which has better reviews, Chemguy or Unreal Chemist?
Do Chemguy or Unreal Chemist have ads?
Which is updated more often, Chemguy or Unreal Chemist?
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