# Sleep Jar vs ONIS

The clearest difference is update cadence: ONIS at every 4 days against Sleep Jar's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Sleep Jar sells 2 in-app purchases, starting at $3.99 per month and ONIS sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Sleep Jar ships an update fortnightly, ONIS every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sleep Jar | ONIS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (902 ratings)](https://appshunter.io/ios/app/sleep-jar/id1587218079/reviews)** | — |
| Number of ratings | **902** | — |
| Positive reviews | 87.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 70 MB | 12 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 9+ | 4+ |
| Developer | [INVOKED APPS LLC DBA SLEEP JAR](https://appshunter.io/developer/1587218081) | [Lee Jacob Yan Chak](https://appshunter.io/developer/1883639729) |

## What reviewers say

### Sleep Jar

[App page](https://appshunter.io/ios/app/sleep-jar/id1587218079)

This app offers a vast library of sleep sounds, stories, guided meditations, and ambient noise to promote relaxation and better sleep. It aims to be a mental health tool, helping users focus, de-stress, or simply block out distractions with professionally recorded audio content.

**Highlights:** Extensive sound library, Narrated sleep stories, Guided meditation journeys, Ambient noise options, Professionally recorded audio, Focus and relaxation tools

**Features:** Siri integration, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sleep Jar Premium | $3.99 | per month |
| Sleep Jar Premium | $19.99 | per year |


### ONIS

[App page](https://appshunter.io/ios/app/onis-track-what-matters/id6785263409)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ONIS Premium Yearly | $2.99 | one-time |
| ONIS Lifetime | $9.99 | one-time |
| ONIS Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is Sleep Jar free?

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

### Is ONIS free?

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

### Do Sleep Jar or ONIS have ads?

Neither Sleep Jar nor ONIS shows ads.

### Which is updated more often, Sleep Jar or ONIS?

Sleep Jar ships an update fortnightly, and ONIS every 4 days. Most recently, Sleep Jar was updated on November 3, 2026 and ONIS on October 31, 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.*