# Simplex Spelling Light vs Planet Lettra

The clearest difference is rating: Planet Lettra at 4.3 against Simplex Spelling Light's 3.8. Planet Lettra also leads on update cadence (every 4 months vs every 10 months) and ratings volume (41 vs 11). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Planet Lettra holds the better App Store score, 4.3 against 3.8. Both are backed by a comparable volume of ratings — 11 and 41 respectively. Written reviews point the same way: 77% of Simplex Spelling Light's written reviews are positive against 83% of Planet Lettra's.

Simplex Spelling Light ships an update every 10 months, Planet Lettra every 4 months. The most recent releases landed on November 2, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Simplex Spelling Light | Planet Lettra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (11 ratings)](https://appshunter.io/ios/app/simplex-spelling-light/id465715154/reviews) | **[4.3 (41 ratings)](https://appshunter.io/ios/app/planet-lettra/id992464990/reviews)** |
| Number of ratings | 11 | **41** |
| Positive reviews | 77.1% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 257 MB | 123 MB |
| Requires iOS | 15.0 | **8.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pyxwise Software Inc.](https://appshunter.io/developer/456744015) | [Gregory McDonald](https://appshunter.io/developer/992464989) |

## What reviewers say

### Simplex Spelling Light

[App page](https://appshunter.io/ios/app/simplex-spelling-light/id465715154)

This app enhances spelling and reading skills with a unique "reverse phonics" approach and contextually relevant spelling rules. It offers interactive learning for various student types, providing immediate feedback and explanations for word construction.

**Highlights:** Reverse phonics approach, Contextual spelling rule hints, Letter-by-letter feedback, Over 50 high-frequency words, Spoken words in sentences, User stats and reporting

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Great for basic spelling
- 👍 Engaging for children
- 👍 Reinforces phonemic awareness
- 👍 Good for dyslexic students
- 👍 Clear voice and interface

**What reviewers complain about**

- 👎 Advanced phonemes for beginners
- 👎 Digraphs split into individual letters
- 👎 Ads for paid version
- 👎 No volume/sound issues
- 👎 American English pronunciation

**Reported bugs**

- Consonant digraphs don't match phonemes
- Letters sounded out individually instead of phonemes
- No volume

**Requested features**

- Ability to create custom word lists
- Option to lock lists until mastered
- More word lists/grade levels
- Option to make sentences with words
- Illustrations for engagement


### Planet Lettra

[App page](https://appshunter.io/ios/app/planet-lettra/id992464990)

This app provides a playful environment for children to experiment with building words. It uses interactive letter bubbles to help young learners develop reading fluency and phonics skills in a stress-free, musical setting.

**Highlights:** Interactive letter bubbles for word creation, Supports English, French, and Spanish, Recognizes over 100,000 words per language, Focuses on sight words and letter blends, Musical and soothing sound environment, No time limits, levels, or points

**In-app purchases:** none


## Frequently asked questions

### Is Simplex Spelling Light free?

Simplex Spelling Light is free to download, with no in-app purchases.

### Is Planet Lettra free?

Planet Lettra is free to download, with no in-app purchases.

### Which has better reviews, Simplex Spelling Light or Planet Lettra?

Planet Lettra is rated higher. Simplex Spelling Light averages 3.8 out of 5 from 11 ratings, while Planet Lettra averages 4.3 from 41 ratings.

### Do Simplex Spelling Light or Planet Lettra have ads?

Neither Simplex Spelling Light nor Planet Lettra shows ads.

### Which is updated more often, Simplex Spelling Light or Planet Lettra?

Simplex Spelling Light ships an update every 10 months, and Planet Lettra every 4 months. Most recently, Simplex Spelling Light was updated on November 2, 2026 and Planet Lettra on November 1, 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.*