Unreal Chemist vs Open V8
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Read full descriptionHide full description
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.
Open V8
Read full descriptionHide full description
Open V8 is a working V8 engine you can take apart in your hands. Press START and the engine fires up. Every part moves exactly as it does in a real engine: the crankshaft turns, the pistons and connecting rods follow it, the camshaft pushes the lifters and pushrods, the rocker arms open the valves and the spark plugs fire in the right order. Step on the gas and watch the revs climb as the shift lights come on. SEE INSIDE • Explode: pull the lever and the engine comes apart into its parts – heads, valve covers, intake, oil pan and crankshaft – while it keeps running. • Cutaway: slice the block open to see the pistons move inside the cylinders. • X-ray: make the outer parts transparent and watch the valvetrain at work. • Slow motion: slow everything down to 1/10, 1/20 or 1/50 speed. At 1/20 the idle is about 37 rpm, so you can follow every single firing. LEARN EVERY PART Tap any part to learn what it does: the cross-plane crankshaft, the camshaft and roller lifters, valves and springs, timing chain, ignition coils, fuel injectors, headers and more. HEAR IT The sound is not a recording. It is generated live by an engine synthesizer from the firing order, the revs and the throttle, so you hear the uneven cross-plane rumble at idle, the intake roar under load and the crackle when you lift off. PUT IT IN YOUR ROOM On iPhone and iPad you can place the running engine on your table or floor in augmented reality, walk around it, turn it and resize it. BUILT FROM REAL NUMBERS The engine is modelled from the published dimensions of a classic 6.2 L pushrod V8: bore, stroke, rod length, deck height, valve sizes and cam timing. NO ACCOUNTS, NO ADS, NO TRACKING Open V8 collects no data at all. Great for students, mechanics, car enthusiasts and anyone who has ever wondered what actually happens under the hood.
Screenshots
Verdict
The clearest difference is in-app purchases: Open V8 at none against Unreal Chemist's 1. Open V8 also leads on ads (none vs shown). Unreal Chemist's advantage is iOS requirement (11.0 vs 27.0). On price 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. Unreal Chemist sells 1 one-off in-app purchase. Open V8 asks for nothing beyond the download.
| Parameter | Unreal Chemist | Open V8 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (68 ratings) — better | — |
| Positive reviews | 73.4% of reviews | — |
| Number of ratings | 68 — better | — |
| Update frequency | Every 2 weeks | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 27.0 |
| Further details — not scored | ||
| Size | 342 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | ZipoApps | Patrick Christensen |
Bugs and 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
Show 12 moreShow fewer
- 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
Show 27 moreShow fewer
- 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
Open V8
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Unreal Chemist
- Premium Version$5.99
Open V8
No in-app purchases
Questions
Is Unreal Chemist free?
Is Open V8 free?
Do Unreal Chemist or Open V8 have ads?
Other comparisons















