Comparison

Size test vs Global Warming Science & Model

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

Head to head
About

Size test

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This app is designed to assess how quickly the user reacts to changes in the size of an object. Users can select one of the test modes: 'Increasing the object', 'Decreasing the object', 'Decreasing or increasing the object'. When the user observes a change in the size of an object, the user must break contact with the device screen. The recorded test time reflects the user's ability to perceive the change in object size. Once the test is completed, the results are tested for normality of distribution (Shapiro-Wilk test). If the values deviate from the law of normal distribution, the program analyzes the data sets, removes the worst value and adds an additional attempt. In the program settings you can select the number of attempts - from 10 to 30. The choice of the number of attempts depends on the performer's age and professional activity. In addition, in the program settings the user can save a backup copy of his measurements in JSON format anywhere (Save backup), add measurements from another device (Add backup), replace already saved measurements with new ones (Replace backup) or delete all data (Delete all data). This application is intended to be used by athletes and teachers in specialized educational institutions for scientific research.

About

Global Warming Science & Model

Explore the science behind global warming and climate change through interactive simulations and an authentic climate model. This educational tool makes complex concepts accessible for students, offering insights into Earth's future climate.

Highlights
  • Interactive simulations of global warming concepts
  • Authentic atmospheric/ocean coupled global climate model
  • Content based on IPCC, NASA, and NOAA reports
  • Hands-on lessons and offline labs
  • Differentiated content for various learning levels
  • Suitable for grades 8 to college
Features
Read full description

Global Warming Science and Model is our impressive instructional software on global warming and the resulting climate change. It provides a logical sequential series of engaging simulations of the important concepts needed to understand why global warming of the Earth is happening. These simulations along with the supporting information provided make the concepts involved much more accessible and meaningful to students than what can be found in text books and/or many web sites. The software also includes an authentic atmospheric/ocean coupled global climate model (GCM). This final simulation has a simple elegance. It is easy to use with clear understandable results; yet unleashes the incredible computational power of your iPad or recent desktop computer, and uses many advanced methods, to deliver compelling inference on the future of the Earth (note iPads older than 2014 are too slow to reasonably run the GCM module). The content for the software, and the included GCM, are based extensively on the technical reports of the Intergovernmental Panel on Climate Change (IPCC), NASA, and NOAA. Through our software this information is made readily accessible to students in order to provide them with a sound scientific understanding of how greenhouse gases provide our planet with the global climate we have and why it can change. It also provides students with insights into the many uncertainties involved in predicting the future of our climate due to the nonlinear complexities of the feedbacks mechanisms involved in the Earths dynamic climate system. This instructional software includes hands-on lessons and excellent off-line labs which together can provide weeks of curriculum for grades 8 to college; or which because of the software’s module design, can readily be used with other existing curriculum. With the content carefully layered and differentiated so that it will be effective for learning at numerous levels of education and abilities. This software will free up more of your time to discuss and assimilate higher principles and understandings. Consider how much more meaningful and comprehensible climate study discussion can be when your students have a sound working knowledge of the processes that are causing climate change. Our global warming software is well tested and is in use at many high schools and colleges around the USA and across the world.

Verdict

The call

The clearest difference is price: Size test at $0.99 against Global Warming Science & Model's $19.99. Global Warming Science & Model's advantage is iOS requirement (12.0.0 vs 14.0). On update cadence, 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

Size test costs $0.99 and Global Warming Science & Model $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Size test ships an update every 10 months, Global Warming Science & Model every 12 months. The most recent releases landed on October 15, 2026 and June 1, 2026 respectively.

Scorecard2 real differences · 8 level
Size test versus Global Warming Science & Model: the parameters behind the verdict, then further details
ParameterSize testGlobal Warming Science & Model
Price$0.99 — better$19.99
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 10 months — betterEvery 12 months
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPadiPad
Requires iOS14.012.0.0 — better
Further details — not scored
Size1 MB112 MB
Age rating4+4+
DeveloperViacheslav RomanenkoSeeds Software

In-app purchases

None

Size test

No in-app purchases

None

Global Warming Science & Model

No in-app purchases

Questions

Is Size test free?
Size test costs $0.99, with no in-app purchases.
Is Global Warming Science & Model free?
Global Warming Science & Model costs $19.99, with no in-app purchases.
Do Size test or Global Warming Science & Model have ads?
Neither Size test nor Global Warming Science & Model shows ads.
Which is updated more often, Size test or Global Warming Science & Model?
Size test ships an update every 10 months, and Global Warming Science & Model every 12 months. Most recently, Size test was updated on October 15, 2026 and Global Warming Science & Model on June 1, 2026.

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