# Simplex Spelling HD vs Monster Spelling Piano

The clearest difference is price: Simplex Spelling HD at $4.99 against Monster Spelling Piano's $14.99. Simplex Spelling HD also leads on in-app purchases (none vs 1). Monster Spelling Piano's advantage is review sentiment (100% vs 90%) and iOS requirement (13.4 vs 15.0). On update cadence, ads, monetization model and device support there is nothing between them.

Simplex Spelling HD costs $4.99 and Monster Spelling Piano $14.99 up front. Monster Spelling Piano sells 1 in-app purchase, starting at $4.99 per year. Simplex Spelling HD asks for nothing beyond the download.

Simplex Spelling HD ships an update every 3 months, Monster Spelling Piano every 4 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Simplex Spelling HD | Monster Spelling Piano |
| --- | --- | --- |
| Price | **$4.99** | $14.99 |
| Rating | **[3.2 (5 ratings)](https://appshunter.io/ios/app/simplex-spelling-hd/id456744012/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 90.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Paid | Paid |
| Size | 134 MB | 105 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pyxwise Software Inc.](https://appshunter.io/developer/456744015) | [EdCode Ltd](https://appshunter.io/developer/1571441109) |

## What reviewers say

### Simplex Spelling HD

[App page](https://appshunter.io/ios/app/simplex-spelling-hd/id456744012)

This app enhances English spelling and reading skills using a unique "reverse phonics" approach and contextually relevant spelling rules. It acts as a personal spelling coach, teaching foundational Dolch sight words through interactive word building and immediate feedback.

**Highlights:** Teaches Dolch Sight words, Reverse phonics approach, Contextual spelling rules, Interactive word building, Phonics hint feature, Letter-by-letter feedback, Multiple user accounts

**Features:** macOS Compatibility

**In-app purchases:** none


### Monster Spelling Piano

[App page](https://appshunter.io/ios/app/monster-spelling-piano/id6717616998)

This app makes learning letters and sounds engaging for children through fun characters and visual aids. It helps develop phonemic awareness and master grapheme-to-phoneme correspondences, supporting neurodiverse learners.

**Highlights:** IPA Phonemies and Speech Sound Monsters, Code Mapping® for grapheme clarification, Visual aids like highlights and split digraphs, Over 100 high-frequency irregular words, Supports children with ADHD, autism, and dyslexia, Multi-sensory Speech Sound Mapping approach

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monster Spelling Piano App | $4.99 | per year |


## Frequently asked questions

### Is Simplex Spelling HD free?

Simplex Spelling HD costs $4.99, with no in-app purchases.

### Is Monster Spelling Piano free?

Monster Spelling Piano costs $14.99, and also offers in-app purchases.

### Do Simplex Spelling HD or Monster Spelling Piano have ads?

Neither Simplex Spelling HD nor Monster Spelling Piano shows ads.

### Which is updated more often, Simplex Spelling HD or Monster Spelling Piano?

Simplex Spelling HD ships an update every 3 months, and Monster Spelling Piano every 4 months. Most recently, Simplex Spelling HD was updated on November 2, 2026 and Monster Spelling Piano on November 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*