# Simplex Spelling Phonics 3 vs ST Booking

The clearest difference is price: ST Booking at Free against Simplex Spelling Phonics 3's $4.99. ST Booking also leads on update cadence (every 3 weeks vs every 13 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

ST Booking is free to download; Simplex Spelling Phonics 3 costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Simplex Spelling Phonics 3 ships an update every 13 months, ST Booking every 3 weeks. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Simplex Spelling Phonics 3 | ST Booking |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/simplex-spelling-phonics-3/id572136313/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 92.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 230 MB | 30 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pyxwise Software Inc.](https://appshunter.io/developer/456744015) | [Success Tutoring](https://appshunter.io/developer/1635468442) |

## What reviewers say

### Simplex Spelling Phonics 3

[App page](https://appshunter.io/ios/app/simplex-spelling-phonics-3/id572136313)

This app enhances English spelling and reading skills through phonics lessons, word patterns, and a unique reverse phonics approach. It scientifically helps students improve their spelling, covering over 750 high-frequency words and 52 instructional lists.

**Highlights:** Phonics lessons and word patterns, Reverse phonics approach, 750+ high-frequency words, 52 instructional lessons, Contextual spelling rule hints, Progress tracking for 40 users, Exportable progress reports

**Features:** macOS Compatibility

**In-app purchases:** none


### ST Booking

[App page](https://appshunter.io/ios/app/st-booking/id6760256006)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Simplex Spelling Phonics 3 free?

Simplex Spelling Phonics 3 costs $4.99, with no in-app purchases.

### Is ST Booking free?

ST Booking is free to download, with no in-app purchases.

### Do Simplex Spelling Phonics 3 or ST Booking have ads?

Neither Simplex Spelling Phonics 3 nor ST Booking shows ads.

### Which is updated more often, Simplex Spelling Phonics 3 or ST Booking?

Simplex Spelling Phonics 3 ships an update every 13 months, and ST Booking every 3 weeks. Most recently, Simplex Spelling Phonics 3 was updated on October 16, 2026 and ST Booking on October 8, 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.*