# firstSounds vs Polyo

The clearest difference is in-app purchases: Polyo at none against firstSounds's 1. Polyo also leads on ratings volume (6 vs 2). firstSounds's advantage is update cadence (daily vs monthly) and iOS requirement (14.0 vs 16.4). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. firstSounds sells 1 in-app purchase, starting at $14.95 per year. Polyo asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for firstSounds against 5.0 for Polyo. Both are backed by a comparable volume of ratings — 2 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

firstSounds ships an update daily, Polyo monthly. The most recent releases landed on September 17, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | firstSounds | Polyo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/firstsounds/id6740403636/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/polyo/id6760245870/reviews) |
| Number of ratings | 2 | **6** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 34 MB | 54 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Elizabeth Huddleston](https://appshunter.io/developer/1789766373) | [Kaleb McKelvey](https://appshunter.io/developer/1883445883) |

## What reviewers say

### firstSounds

[App page](https://appshunter.io/ios/app/firstsounds/id6740403636)

Introduce your baby to the sounds of 8 languages and world music with this audio-only app. Designed by experts, it uses native speakers and acoustic instruments to support cognitive growth, creativity, and social skills in just 15 minutes a day.

**Highlights:** Audio-only language learning, 8 languages available, World music and lullabies, Native speaker "motherese", Authentic acoustic instruments, Downloadable translation guide, Expert-designed and research-backed

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Plan | $14.95 | per year |


### Polyo

[App page](https://appshunter.io/ios/app/polyo/id6760245870)

This app helps you monitor your progress in learning multiple languages. Log study hours, categorize activities, and track your growth to stay consistent and accountable on your learning journey.

**Highlights:** Track language study across multiple languages, Log study hours, Categorize learning activities, Monitor language learning growth, Promotes consistency and accountability

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

**In-app purchases:** none


## Frequently asked questions

### Is firstSounds free?

firstSounds is free to download, with in-app purchases available.

### Is Polyo free?

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

### Which has better reviews, firstSounds or Polyo?

firstSounds and Polyo are both rated 5.0 out of 5 on the App Store, from 2 and 6 ratings respectively.

### Do firstSounds or Polyo have ads?

Neither firstSounds nor Polyo shows ads.

### Which is updated more often, firstSounds or Polyo?

firstSounds ships an update daily, and Polyo monthly. Most recently, firstSounds was updated on September 17, 2026 and Polyo on September 14, 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.*