# Intervallical vs Los OSOs

The clearest difference is price: Intervallical at Free against Los OSOs's $2.99. Intervallical also leads on in-app purchases (none vs 2) and iOS requirement (14.0 vs 16.2). Los OSOs's advantage is update cadence (every 6 days vs every 23 months). On rating, review sentiment, ratings volume and ads there is nothing between them.

Intervallical is free to download; Los OSOs costs $2.99 up front. Los OSOs sells 2 in-app purchases, starting at $9.99 per month. Intervallical asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Intervallical against 5.0 for Los OSOs. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Intervallical ships an update every 23 months, Los OSOs every 6 days. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Intervallical | Los OSOs |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/intervallical/id1578174278/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/los-osos/id1672750235/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 6 days** |
| Monetization | **Free** | Paid |
| Size | 8 MB | 282 MB |
| Requires iOS | **14.0** | 16.2 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [Janusz Polowczyk](https://appshunter.io/developer/1578174280) | [Nectelier Inc.](https://appshunter.io/developer/1481311829) |

## What reviewers say

### Intervallical

[App page](https://appshunter.io/ios/app/intervallical/id1578174278)

This app offers a versatile countdown timer with three distinct modes: simultaneous, consecutive, and intervallic. It allows users to set up predefined timers for various tasks, from focused work sessions to delayed countdowns, all within a simple and familiar interface.

**Highlights:** Simultaneous timer mode, Consecutive timer mode, Intervallic timer mode, User-defined timer intervals, Simple tap controls, Predefined timer cards

**Features:** macOS Compatibility

**In-app purchases:** none


### Los OSOs

[App page](https://appshunter.io/ios/app/los-osos/id1672750235)

This app helps you understand and express your emotions through a unique, non-verbal system. Record and share your sentiment over time to improve self-awareness, leadership, and teamwork. Designed with an elegant and intuitive interface.

**Highlights:** Non-verbal sentiment recording, 3D emotion tracking (Happiness, Energy, Assuredness), Sentiment sharing for teamwork, Elegant and intuitive design, Personal sentiment review over time, Proprietary OSO-Pearl technology

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Los OSO Monthly | $9.99 | per month |
| Los OSO Yearly | $83.00 | per year |


## Frequently asked questions

### Is Intervallical free?

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

### Is Los OSOs free?

Los OSOs costs $2.99, and also offers in-app purchases.

### Which has better reviews, Intervallical or Los OSOs?

Intervallical and Los OSOs are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Intervallical or Los OSOs have ads?

Neither Intervallical nor Los OSOs shows ads.

### Which is updated more often, Intervallical or Los OSOs?

Intervallical ships an update every 23 months, and Los OSOs every 6 days. Most recently, Intervallical was updated on October 22, 2026 and Los OSOs on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*