# Articulate S vs GROW Observatory

The clearest difference is price: GROW Observatory at Free against Articulate S's $4.99. GROW Observatory also leads on iOS requirement (9.3 vs 12.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

GROW Observatory is free to download; Articulate S costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Articulate S | GROW Observatory |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.7 (9 ratings)](https://appshunter.io/ios/app/articulate-s/id1007825196/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | — |
| Size | 80 MB | 84 MB |
| Requires iOS | 12.0 | **9.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BeeMoo, LLC](https://appshunter.io/developer/1448534264) | [IIASA](https://appshunter.io/developer/1101285210) |

## What reviewers say

### Articulate S

[App page](https://appshunter.io/ios/app/articulate-s/id1007825196)

This app offers a fun and easy way to practice the "s" sound for children and English language learners. It features 145 images with audio and text, along with a matching game to keep users engaged. Developed by a certified speech-language pathologist, it addresses various pronunciation challenges.

**Highlights:** 145 images with spoken words and text, Auditory bombardment and flashcard drilling, Matching game for motivation, Practice in various phonetic contexts, Addresses specific speech sound errors

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

**In-app purchases:** none


### GROW Observatory

[App page](https://appshunter.io/ios/app/grow-observatory/id1409694401)

**In-app purchases:** none


## Frequently asked questions

### Is Articulate S free?

Articulate S costs $4.99, with no in-app purchases.

### Is GROW Observatory free?

GROW Observatory is free to download, with no in-app purchases.

### Do Articulate S or GROW Observatory have ads?

Neither Articulate S nor GROW Observatory shows ads.

### Which is updated more often, Articulate S or GROW Observatory?

Articulate S ships an update every 2 months, and GROW Observatory every 2 months. Most recently, Articulate S was updated on October 24, 2026 and GROW Observatory on October 12, 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.*