Simplex Spelling Phonics CVC vs Physics Playground App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simplex Spelling Phonics CVC
This app teaches foundational reading skills for young learners, focusing on rhyming, segmenting, and blending CVC words. It uses a unique "reverse phonics" approach with interactive feedback to build phonemic awareness and improve spelling and reading.
- Teaches CVC words and short vowel sounds
- Interactive "reverse phonics" approach
- Phonics hint feature for blending
- Spelling rule hints
- Letter-by-letter feedback
- Supports up to 40 user accounts
- Progress reports and user stats
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- Earned a spot as one of the "Best Five Phonics Apps" by Teachers With Apps. Simplex Spelling CVC Words teaches rhyming, segmenting and blending of over 300 three letter CVC (consonant-vowel-consonant) words covering all five short vowel sounds. The concepts taught are aligned with many of the US Common Core Standards for Foundational Skills in Reading for Kindergarten. Children will learn phonics and the primary letter sounds and letter names for the alphabet while building the phonemic awareness skills that are critical for becoming a fluent speller and reader. Simplex Spelling Phonics improves English spelling and reading skills in a fun and interactive way by combining a unique “reverse phonics” approach with contextually relevant spelling rules that explain why words are spelled in a particular manner. It works like a personal spelling coach with every word. Recommended for ages 4+. Note: You can not create your own spelling lists in Simplex Spelling Phonics - Rhyming With CVC Words. Features: - Over 300 three letter CVC words covering all five short vowel sounds (e.g. cat, sat, pig, wig, log, bog, bug, rug, get, set). - Words are spoken and used in a sentence to establish context. - Introduction seamlessly leads a student through the application’s features by providing spoken information while having the student spell new words. - The keyboard can be customized to speak either the primary phoneme for each letter , or the letter's name as it is typed. - Powerful phonics hint feature sounds out each word by phonemes from left to right to aid with blending and phonemic awareness skills. - The hint feature also provides a mapping of all the possible graphemes that can represent each sound. - Word lists are organized by onsets, rhymes and medial vowels to allow students to understand and spell new words by changing only a single sound from other words in the same list. - Contextually relevant spelling rule hints that help explain “how to spell” English words. - Unique letter by letter feedback system that provides immediate feedback. - Guaranteed success on every word. - Support for up to 40 user accounts. - Export and email student progress reports. - User stats screen that allows you to see words that have been mastered and words that require further practice. - Remembers each user’s position and progress. - Supports both upper and lower case letters. - Supports both alphabetic and QWERTY keyboard layouts. - Supports both US, UK and Canadian English spelling. Privacy Disclosure: - Does not contain 3rd party ads - Does not share any data - Does not contain In-App purchases - Contains child protected links to "email the developer questions" and developer's website for additional information, support and teaching tips. COPPA Compliant https://pyxwise.com/privacy-policy/
Physics Playground App
Explore the universe of physics and math through interactive simulations and real-time equation adjustments. Learn concepts from basic counting to advanced theories with hands-on playgrounds and mini-games that earn you badges. Designed for all levels of understanding, from children to PhDs.
- Interactive physics and math playgrounds
- Real-time equation adjustments
- Adjustable difficulty slider (Child to PhD)
- Mini-games with badge rewards
- Concept map for interconnected ideas
- Offline-first functionality
- No ads or accounts required
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Physics Playground turns science into games you play with your hands. Fire a cannon, slide pucks across the ice, fold a protein, crack a cipher, bend starlight around a black hole and forge a star. Every game runs on real physics, chemistry, biology, math or computer science, so you learn by doing, not by reading. 63 GAMES, FIVE SUBJECTS From projectiles, orbits and lasers to entanglement and the Big Bang; atoms, reactions and batteries; cells, genes and the immune system; fractions, fractals and calculus; logic gates, sorting, networks and machine learning. Each game has its own controls and its own goal. PLAY AT YOUR LEVEL Pick Curious Kid, Teen, Undergrad or PhD. Games start on Easy, Normal or Hard to match, and PhD turns off the hints for numbers only play. Free Play lets you experiment with no clock. EARN EVERY STAR Clear stages, earn up to three stars, beat your best score and collect badges. Light up your constellation and unlock the Universe Tuner when you master them all. BUILT FOR IPHONE DUO Fold it into a tabletop and the hinge aims the cannon. Open it like a book and the game spreads across both halves, with controls on their own side. Close it and keep playing on the outer screen. NEW GRAPHICS, SMOOTH AT 120 HZ Glowing particles, warped spacetime, lensed starlight and live fractals, with haptics tuned to every bounce and blast. GO DEEPER Every game links trusted sources: textbooks, papers, lectures and courses. Works on iPhone, iPad, Mac and Apple Vision Pro. Ask Siri to open a game. No account, no ads, no tracking.
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Verdict
The clearest difference is price: Physics Playground App at Free against Simplex Spelling Phonics CVC's $4.99. Physics Playground App also leads on update cadence (every 3 weeks vs every 13 months). Simplex Spelling Phonics CVC's advantage is rating (3.7 vs 3.0) and ratings volume (9 vs 1). 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
Physics Playground App is free to download; Simplex Spelling Phonics CVC costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Simplex Spelling Phonics CVC holds the better App Store score, 3.7 against 3.0. That said, the two scores are not equally well evidenced: Simplex Spelling Phonics CVC has 9 ratings behind it against 1, so its average is the more settled of the two.
Simplex Spelling Phonics CVC ships an update every 13 months, Physics Playground App every 3 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | Simplex Spelling Phonics CVC | Physics Playground App |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 3.7 (9 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | 1 |
| Update frequency | Every 13 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 106 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Pyxwise Software Inc. | AJA Digital LLC |
Customer experience
Simplex Spelling Phonics CVC
Physics Playground App
In-app purchases
Simplex Spelling Phonics CVC
No in-app purchases
Physics Playground App
No in-app purchases
Questions
Is Simplex Spelling Phonics CVC free?
Is Physics Playground App free?
Which has better reviews, Simplex Spelling Phonics CVC or Physics Playground App?
Do Simplex Spelling Phonics CVC or Physics Playground App have ads?
Which is updated more often, Simplex Spelling Phonics CVC or Physics Playground App?
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