# Let's Laugh Laughter Exercises vs O2CO2

The clearest difference is price: O2CO2 at Free against Let's Laugh Laughter Exercises's $1.99. O2CO2 also leads on update cadence (every 3 weeks vs every 2 months). Let's Laugh Laughter Exercises's advantage is in-app purchases (none vs 2) and chart position (#195 vs unranked). On ads and device support there is nothing between them.

O2CO2 is free to download; Let's Laugh Laughter Exercises costs $1.99 up front. O2CO2 sells 2 in-app purchases, starting at $3.99 per year. Let's Laugh Laughter Exercises asks for nothing beyond the download.

Let's Laugh Laughter Exercises ships an update every 2 months, O2CO2 every 3 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Let's Laugh Laughter Exercises | O2CO2 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/lets-laugh-laughter-exercises/id1006992769/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 78.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Best chart rank | **#195** | — |
| Size | 40 MB | 353 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The School of Laughter Yoga](https://appshunter.io/developer/1006992768) | [ELIOTT ROMAIN-SAVARD](https://appshunter.io/developer/6813168270) |

## What reviewers say

### Let's Laugh Laughter Exercises

[App page](https://appshunter.io/ios/app/lets-laugh-laughter-exercises/id1006992769)

**Currently charting:** #195 Top Paid · Health & Fitness (US App Store)

Engage in guided laughter yoga sessions to reduce stress, boost energy, and improve mood. This app offers easy-to-follow exercises suitable for all ages, allowing you to create personalized playlists for daily practice.

**Highlights:** Laughter yoga exercises, Mood and energy boosting, Personalized playlists, Practice anywhere, Suitable for all ages, Stress reduction

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

**In-app purchases:** none


### O2CO2

[App page](https://appshunter.io/ios/app/o2co2/id6813168268)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| O2CO2 Premium Annual | $3.99 | per year |
| O2CO2 Premium Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is Let's Laugh Laughter Exercises free?

Let's Laugh Laughter Exercises costs $1.99, with no in-app purchases.

### Is O2CO2 free?

O2CO2 is free to download, with in-app purchases available.

### Do Let's Laugh Laughter Exercises or O2CO2 have ads?

Neither Let's Laugh Laughter Exercises nor O2CO2 shows ads.

### Which is updated more often, Let's Laugh Laughter Exercises or O2CO2?

Let's Laugh Laughter Exercises ships an update every 2 months, and O2CO2 every 3 weeks. Most recently, Let's Laugh Laughter Exercises was updated on October 26, 2026 and O2CO2 on October 24, 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.*