Comparison

PP+ Archimedes Principle vs The Excretory System

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

Head to head
About

PP+ Archimedes Principle

Features
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The Archimedes Principle lab uses a laboratory balance, a metal sample, and graduated cylinders containing water and alcohol to investigate Archimedes’ Principle and to use Archimedes’ Principle to determine the mass densities of a solid and a liquid. It is part of Polyhedron Physics Plus, a set of 24 iPad apps for use in the classroom. To see how they work, try the FREE PP+ Newton’s 2nd Law lab. For those who’d prefer to develop their own experiments, the PP Archimedes Principle app features a similar apparatus without lab procedures and other supporting materials. In addition to a 3D simulation that produces realistic data, each lab includes introductory videos, background theory, experimental procedure, analysis and reporting tools, pre-lab quiz, post-lab questions, and teacher support materials. The experimental data produced by the simulations are realistic, including random and systematic errors. These features allow students to use standard data analysis and error analysis techniques to report on their own unique data, just as if the experiment had been performed using hands-on equipment. These labs can serve as replacements for hands-on labs, especially when equipment is not available, or as supplements to hands-on labs. They are also a suitable option for students in distance learning and home school situations. Formative and summative evaluations showed no significant difference in learning between students using the virtual labs and those using hands-on labs. Preliminary results suggest increased learning by students using the virtual labs as supplements to hands-on. Polyhedron Physics was developed by Polyhedron Learning Media, Inc. with partial funding provided under contract numbers ED-07-CO-0040 and ED-IES-11-C-0029 from the Institute of Education Sciences in the U.S. Department of Education through the Small Business Innovation Research (SBIR) program.

About

The Excretory System

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The DOST Courseware is a locally-produced, all-original Filipino highly interactive multimedia educational application packages that are conceptualized, digitized and produced as spearheaded by the Science Education Institute (SEI-DOST) in partnership with the Advanced Science and Technology Institute (ASTI-DOST) and in cooperation with the Department of Education (DepEd), Philippine Normal University (PNU) and University of the Philippines-National Institute for Science and Mathematics Education (UP-NISMED), which aims to develop information and communication technology learning innovation to support the upgrading and improvement of science and mathematics education in the country. The DOST Courseware are provided for free to schools and are also made available online as supplemental resources for teachers and student as a fun and interactive approach to e-learning and blended learning. The Grade 7 DOST Courseware is composed of 120 lessons overall, 73 lessons in Science where it covered the domains on: Matter; Force, Motion and Energy, Living Things and Their Environment and Earth and Space while the 60 lessons in Mathematic covered the domains on: Numbers and Number Sense, Patterns and Algebra, and Geometry. The Grade 8 DOST Courseware is composed of 118 lessons overall, 61 lessons in Science where it covered the domains on: Parts and Functions, Ecosystems, Heredity: Inheritance and Variation of Traits, Structures and Functions, Biodiversity, and Evolution, while the 57 lessons in Mathematics covered the domains on: Linear Equations, Quadratic Equations, Rational Algebraic Equations, Integral Exponents, Radicals, Arithmetic Sequence and Geometric Sequence. The themes of the courseware for Grades 7 and 8, Magicademy, Freddy’s Lab and D’nayao will surely amuse the users as they explore these distinct worlds while learning at the same time.

Screenshots

The Excretory System3 screens

Verdict

The call

The clearest difference is price: The Excretory System at Free against PP+ Archimedes Principle's $1.99. The Excretory System also leads on iOS requirement (12.0 vs 18.0). On in-app purchases 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

The Excretory System is free to download; PP+ Archimedes Principle costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 4 level
PP+ Archimedes Principle versus The Excretory System: the parameters behind the verdict, then further details
ParameterPP+ Archimedes PrincipleThe Excretory System
Price$1.99Free — better
Update frequencyEvery 29 months—
AdsNo—
In-app purchasesNoNo
DevicesiPad — better—
Requires iOS18.012.0 — better
Further details — not scored
Size111 MB34 MB
Age rating4+4+
DeveloperPolyhedron Learning Media, Inc.Science Education Institute

In-app purchases

None

PP+ Archimedes Principle

No in-app purchases

None

The Excretory System

No in-app purchases

Questions

Is PP+ Archimedes Principle free?
PP+ Archimedes Principle costs $1.99, with no in-app purchases.
Is The Excretory System free?
The Excretory System is free to download, with no in-app purchases.

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