# Simplex Spelling HD vs Number Cubes Deluxe

The clearest difference is update cadence: Simplex Spelling HD at every 3 months against Number Cubes Deluxe's every 26 months. Simplex Spelling HD also leads on device support (3 vs 1). Number Cubes Deluxe's advantage is price ($1.99 vs $4.99) and iOS requirement (13.2 vs 15.0). On ads and in-app purchases there is nothing between them.

Simplex Spelling HD costs $4.99 and Number Cubes Deluxe $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Simplex Spelling HD ships an update every 3 months, Number Cubes Deluxe every 26 months. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Simplex Spelling HD | Number Cubes Deluxe |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| 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 | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 26 months |
| Monetization | Paid | — |
| Size | 134 MB | 17 MB |
| Requires iOS | 15.0 | **13.2** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pyxwise Software Inc.](https://appshunter.io/developer/456744015) | [Ventura Educational Systems](https://appshunter.io/developer/371324172) |

## 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


### Number Cubes Deluxe

[App page](https://appshunter.io/ios/app/number-cubes-deluxe/id1499541360)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Simplex Spelling HD free?

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

### Is Number Cubes Deluxe free?

Number Cubes Deluxe costs $1.99, with no in-app purchases.

### Do Simplex Spelling HD or Number Cubes Deluxe have ads?

Neither Simplex Spelling HD nor Number Cubes Deluxe shows ads.

### Which is updated more often, Simplex Spelling HD or Number Cubes Deluxe?

Simplex Spelling HD ships an update every 3 months, and Number Cubes Deluxe every 26 months. Most recently, Simplex Spelling HD was updated on November 2, 2026 and Number Cubes Deluxe on October 25, 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.*