# Phonogram Sounds vs Earthworm Anatomy

The clearest difference is price: Phonogram Sounds at Free against Earthworm Anatomy's $1.99. Phonogram Sounds also leads on update cadence (every 6 months vs every 36 months). Earthworm Anatomy's advantage is iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Phonogram Sounds is free to download; Earthworm Anatomy costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Phonogram Sounds ships an update every 6 months, Earthworm Anatomy every 36 months. The most recent releases landed on October 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Phonogram Sounds | Earthworm Anatomy |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.0 (84 ratings)](https://appshunter.io/ios/app/phonogram-sounds/id797098295/reviews)** | — |
| Number of ratings | **84** | — |
| Positive reviews | 69.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 36 months |
| Monetization | Free | — |
| Size | 27 MB | 57 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPad, Mac, Apple TV |
| Age rating | 4+ | 4+ |
| Developer | [All About Learning Press, Inc.](https://appshunter.io/developer/786428125) | [Ventura Educational Systems](https://appshunter.io/developer/371324172) |

## What reviewers say

### Phonogram Sounds

[App page](https://appshunter.io/ios/app/phonogram-sounds/id797098295)

This interactive app provides clear audio pronunciations for letter sounds and combinations, featuring all 72 basic phonograms from a popular language arts curriculum. It's designed to support reading and spelling development for learners of all ages.

**Highlights:** Hear correct pronunciation of sounds, Clear enunciation of letters and combinations, Includes all 72 basic phonograms, Supports reading and spelling skills, Interactive learning experience

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great supplement for AAS/AAR
- 👍 Helpful for parents/teachers
- 👍 Easy to use
- 👍 Clear phonetic sounds
- 👍 Good for practice

**What reviewers complain about**

- 👎 Incorrect 'r' sound
- 👎 Incomplete phonogram set
- 👎 Not a standalone lesson
- 👎 Not for fun
- 👎 Missing Spalding compatibility

**Reported bugs**

- R says /er/ instead of /r/
- Sound not working
- App crashes
- No sound when tapping phonograms
- Sound only works with ringer on

**Requested features**

- Videos showing lip/tongue placement
- Interactive game app
- App for building words/movable tiles
- Level-based sound availability
- Enlarging tapped tile


### Earthworm Anatomy

[App page](https://appshunter.io/ios/app/earthworm-anatomy/id1291969799)

**In-app purchases:** none


## Frequently asked questions

### Is Phonogram Sounds free?

Phonogram Sounds is free to download, with no in-app purchases.

### Is Earthworm Anatomy free?

Earthworm Anatomy costs $1.99, with no in-app purchases.

### Do Phonogram Sounds or Earthworm Anatomy have ads?

Neither Phonogram Sounds nor Earthworm Anatomy shows ads.

### Which is updated more often, Phonogram Sounds or Earthworm Anatomy?

Phonogram Sounds ships an update every 6 months, and Earthworm Anatomy every 36 months. Most recently, Phonogram Sounds was updated on October 20, 2026 and Earthworm Anatomy on October 6, 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.*