Comparison

Tap OChem vs CloudLabs UARM Motion

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

Head to head
About

Tap OChem

Visualize complex organic chemistry reactions and concepts with animated explanations. This app covers a wide range of undergraduate organic chemistry topics, aiding in exam preparation and understanding of molecular behavior.

Highlights
  • Animated organic chemistry reactions
  • Detailed concept explanations
  • Electron pushing diagrams
  • Full-color text descriptions
  • MCAT, PCAT, OAT, DAT prep
  • Regular content updates
Features
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"Awesome" writes a reviewer! More reviewers comments! "I have used it for all of my exams so far and it is extraordinarily helpful." "This is the best investment that you can make to visualize the reactions. There are a ton of them and they are AWESOME!!!!!" Another reviewer writes “Covers all of the major topics and the videos help me visualize the details of the molecules and reactions”…“Could almost replace a whole textbook.” While we never claim to cover an entire organic chemistry class, with content added in each update (major free updates each year since publishing ten years ago!), Tap OChem is the app that delivers! The reactions and concepts included are many from the one year sequence of undergraduate organic chemistry that is offered at all major colleges and universities. Students have told us that this app was essential in their preparation for the MCAT. Whether you are currently in the one year sequence of classes or reviewing for the MCAT, or PCAT, OAT, and DAT, this app will help! Designed by two award winning chemists with over 48 years of combined experience teaching at major universities, Tap OChem makes organic chemistry reaction come to life for each included reaction or concept. The following animations are currently included: Substitution reactions (20 animations), Elimination reactions (11 animations), Alkene Chemistry (15 animations), Free Radical Chemistry (4 animations), Alkyne Chemistry (7 animations), Epoxide chemistry (4 animations), Benzene chemistry (10 animations), Diene Chemistry (8 animations), Carbonyl Chemistry (8 animations), Major concepts (62+ animations), and Molecules in Motion (35+ animations). The Concepts section includes valence bond theory, molecular orbital theory, electrostatic potential maps, radical spin density maps, alkene stability, dienes and stability, conformational analysis of alkanes and cyclohexane, etc. We've just started adding information on intermolecular interactions and plan on more spectroscopic topics! One animation on dipole/dipole attraction was added. Two animations, one focused on the introduction to IR spectroscopy are included. We are developing and updating more animations for future updates! Each animation has an accompanying text that drills down to the main facts of each reaction or concept. These are in FULL COLOR! They are short, handy, descriptions with important information regarding each reaction or concept. In the case of reaction animations, the concise scrollable text descriptions include electron pushing. We will continue to update the app with future releases. Tap OChem is native to both iPhones and iPads! In addition to the animations being very sharp on your iPhone and iPad, they are of excellent quality when projected (iPhone 4S and iPhone 6s, 6s Plus, 7, 7 Plus, 8, 8 Plus, X, 11, 12, and later, iPad 2 and later, using appropriate adapters) in a classroom. For the iPhone 6s and later; and iPad Air 1 and 2 and later, an appropriate adapter is needed like Lightning Digital AV Adapter (this is an HDMI adapter), or a USB C to HDMI adapter, or a Lightning to VGA Adapter. Please visit www.tapochem.com for further information.

About

CloudLabs UARM Motion

Features
Read full description

In this simulator it is possible to study uniformly accelerated rectilinear motion. For the development of this practice there is an air rail with a mobile, an air pump, sensors to detect movement and a screen that shows the instantaneous measurements of the movement. It is necessary to configure the air rail to be able to travel a certain distance, in a certain time, with a certain initial speed.

Screenshots

Tap OChem4 screens
CloudLabs UARM Motion1 screens

Verdict

The call

The clearest difference is price: CloudLabs UARM Motion at Free against Tap OChem's $4.99. CloudLabs UARM Motion also leads on update cadence (every 3 days vs every 3 months) and iOS requirement (9.0 vs 13.2). On ads, 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

CloudLabs UARM Motion is free to download; Tap OChem costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Tap OChem ships an update every 3 months, CloudLabs UARM Motion every 3 days. The most recent releases landed on July 25, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 7 level
Tap OChem versus CloudLabs UARM Motion: the parameters behind the verdict, then further details
ParameterTap OChemCloudLabs UARM Motion
Price$4.99Free — better
Rating4.7 (39 ratings) — better—
Positive reviews91.7% of reviews—
Number of ratings39 — better—
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.29.0 — better
Further details — not scored
Size3.5 GB68 MB
Age rating4+17+
DeveloperTap OChem, LLCJiovany Orozco

In-app purchases

None

Tap OChem

No in-app purchases

None

CloudLabs UARM Motion

No in-app purchases

Questions

Is Tap OChem free?
Tap OChem costs $4.99, with no in-app purchases.
Is CloudLabs UARM Motion free?
CloudLabs UARM Motion is free to download, with no in-app purchases.
Do Tap OChem or CloudLabs UARM Motion have ads?
Neither Tap OChem nor CloudLabs UARM Motion shows ads.
Which is updated more often, Tap OChem or CloudLabs UARM Motion?
Tap OChem ships an update every 3 months, and CloudLabs UARM Motion every 3 days. Most recently, Tap OChem was updated on July 25, 2026 and CloudLabs UARM Motion on September 21, 2026.

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