Comparison

PSSMath vs ChemyLab

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

Head to head
About

PSSMath

Read full description

PSS Math - Your Secondary School Math Companion Master mathematics with PSS Math, the official study app designed specifically for Portsmouth Secondary School students. Whether you're just starting Form 1 or preparing for exams, PSS Math provides the tools you need to build a strong mathematical foundation. STUDY SMARTER WITH FLASHCARDS Our interactive flashcards make learning math concepts engaging and effective. Each card is carefully crafted to help you understand and memorize key mathematical principles. Flip through cards at your own pace, and revisit challenging concepts as many times as you need. TEST YOUR KNOWLEDGE WITH QUIZZES Put your learning to the test with our comprehensive quiz system. Quizzes are designed to reinforce what you've learned and identify areas that need more practice. Get instant feedback and track your improvement over time. TRACK YOUR PROGRESS Stay motivated with detailed progress tracking. Monitor your: - Total cards mastered - Daily study streaks - Time spent learning - Progress by level and topic Watch your stats grow as you work through the curriculum and celebrate your achievements along the way. CURRICULUM-ALIGNED CONTENT PSS Math follows the Portsmouth Secondary School mathematics curriculum, ensuring you're studying exactly what you need to succeed in class. Content is organized by form level and topic, making it easy to find what you're working on. FORM 1 - TERM 1: INTEGERS (Available Now) Start your secondary math journey with comprehensive coverage of integers: - Integers Basics: Master number lines, ordering, and comparing positive and negative numbers - Adding & Subtracting: Learn techniques for integer operations with and without number lines - Multiplying & Dividing: Understand the rules that govern integer multiplication and division - Coordinates: Explore the Cartesian plane, plot points, and understand x and y axes - Arithmetic Properties: Discover identity, inverse, and the special rules for zero - Laws & Exponents: Apply commutative, associative, and distributive laws with confidence - Number Systems: Convert between decimal (Base 10) and binary (Base 2) numbers MORE CONTENT COMING SOON We're actively developing content for Forms 2-5, covering topics from foundation mathematics through advanced exam preparation. New levels and topics will be added regularly through app updates. FEATURES - Clean, intuitive interface designed for students - Dark mode for comfortable studying in any environment - Organized by weekly curriculum schedule - Works offline - study anywhere, anytime - Supports both iPhone and iPad WHO IS THIS FOR? PSS Math is perfect for: - Form 1-5 students at Portsmouth Secondary School - Students aged 11-18 studying secondary mathematics - Anyone wanting to strengthen their math fundamentals - Parents looking for quality educational tools for their children START YOUR MATH JOURNEY TODAY Download PSS Math and transform the way you learn mathematics. With structured content, interactive study tools, and progress tracking, you'll have everything you need to excel in your math studies. Build confidence. Master concepts. Ace your exams.

About

ChemyLab

Features
Read full description

Step into the ultimate interactive chemistry playground! Chemy: The Visual Laboratory bridges the gap between abstract chemical symbols and tangible physical properties. Designed to build deep visual intuition, Chemy provides a state-of-the-art interactive periodic laboratory for students, educators, and science enthusiasts. Whether you want to visualize atomic structure, simulate thermodynamic states of matter, hear the sounds of light spectra, or build molecules in an interactive sandbox, Chemy brings the microscopic universe to life with premium visuals and responsive simulation mechanics. *** CORE INTERACTIVE MODULES & FEATURES *** INTERACTIVE PERIODIC TABLE (ATLAS) Explore the elements through an immersive, responsive catalog: • Dynamic Grid Layouts: Switch seamlessly between the Classic Periodic Table and the mathematically curved Curled-Ribbon Periodic Grid. • 3D Voxel Blocks: Toggle 3D voxel representations of elements, rendered with custom isometric projections. • Interactive Highlights: Color-code and filter the grid by Cosmic Nucleosynthesis Origin (Big Bang, massive stars, supernovae) or Chemical Families (Noble Gases, Alkali Metals, Halogens, etc.). • Deep Element Inspector: Dive into any element to inspect its scientific details: Bohr Card: Interactive Bohr model visualizer showing concentric electron shells and atomic properties. Electron Apartments: Maps complex quantum orbital configurations (s, p, d, f) to an intuitive apartment room layout filling dynamically based on Hund's Rule and the Aufbau principle. Quantum Forces: Visualize atomic grip forces (ionization energy and electronegativity) with dynamic vector lines. Spectral Signatures: View high-fidelity absorption and emission spectra. Auditory Spectra Synth: Synthesizes emission wavelengths into audible acoustic sine-wave frequencies. Listen to the unique sound of each element! REACTIONS CENTER & SANDBOX Experiment, balance, and build in an open-ended molecular lab: • Reaction Sandbox: A drag-and-drop chamber where atoms float freely. Collide elements to form covalent or ionic binary compounds (like H2O or NaCl) based on electronegativity delta, valency hook counts, and temperature. • Equation Balancer: Input chemical equations using a specialized Periodic Element Keyboard to calculate and balance stoichiometric coefficients instantly. • Molecular Structure Generator: Procedurally generate and inspect molecular stick-and-ball covalent bond structural diagrams. CHAMBER STATE SIMULATOR (SOLID, LIQUID, GAS) Understand how temperature affects atomic motion: • Global Thermal Controller: Simulate temperatures from absolute zero (0 K) up to 6000 K (the surface of the Sun) with key milestones like boiling and melting points. • Atomic Motion Physics Canvas: Watch a dynamic particle engine simulate atomic behavior. See solids locked in a crystalline lattice, cohesive liquids sliding at the base, and high-velocity gases colliding elastically. DENSITY COMPARER (MASS & VOLUME) Build physical intuition for how elements differ in weight and volume: • Isometric 3D Cube Comparison: Compare the density of two pure elements (e.g., 1 kg of Lead vs. 1 kg of Lithium) in dynamically scaling 3D cubes. • Buoyancy & Balance Simulator: Simulate water displacement and balance scales to visualize weight-to-volume relationships. MEMORIZATION TRAINER & PROGRESS • Gamified Quiz Loops: Master symbols, names, atomic numbers, and families with speed and accuracy feedback loops. • Element Sticker Book: Unlock elements in the sandbox to add glowing, starred stickers to your catalog. • Trophy Badges: Earn beautiful rewards (e.g., "Water Creator", "Metal Monarch").

Screenshots

PSSMath4 screens
ChemyLab4 screens

Verdict

The call

The clearest difference is iOS requirement: ChemyLab at 13.0 against PSSMath's 15.1. On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 4 level
PSSMath versus ChemyLab: the parameters behind the verdict, then further details
ParameterPSSMathChemyLab
PriceFreeFree
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size32 MB26 MB
Age rating9+4+
DeveloperDESMOND WARRINGTONCristi Citea

In-app purchases

None

PSSMath

No in-app purchases

None

ChemyLab

No in-app purchases

Questions

Is PSSMath free?
PSSMath is free to download, with no in-app purchases.
Is ChemyLab free?
ChemyLab is free to download, with no in-app purchases.
Do PSSMath or ChemyLab have ads?
Neither PSSMath nor ChemyLab shows ads.

Other comparisons