# brid.zzz vs SleepisolC

The clearest difference is iOS requirement: brid.zzz at 13.0 against SleepisolC's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

brid.zzz ships an update every 3 weeks, SleepisolC every 5 weeks. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | brid.zzz | SleepisolC |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | — | Free |
| Size | 78 MB | 210 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SLEEPWAVE INC.](https://appshunter.io/developer/1635861891) | [leesol](https://appshunter.io/developer/1584929445) |

## What reviewers say

### brid.zzz

[App page](https://appshunter.io/ios/app/bridzzz/id6449228010)

**In-app purchases:** none


### SleepisolC

[App page](https://appshunter.io/ios/app/sleepisolc/id6738976438)

This app offers customized sound therapy and versatile modes like sleep, stress relief, and focus. It connects seamlessly with a dedicated device to help users achieve a healthier lifestyle through improved sleep and mental well-being.

**Highlights:** Customizable intensity and time settings, Multiple modes: sleep, stress, healing, focus, Binaural beats sound therapy, Automatic device connection, User-friendly interface

**In-app purchases:** none


## Frequently asked questions

### Is brid.zzz free?

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

### Is SleepisolC free?

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

### Do brid.zzz or SleepisolC have ads?

Neither brid.zzz nor SleepisolC shows ads.

### Which is updated more often, brid.zzz or SleepisolC?

brid.zzz ships an update every 3 weeks, and SleepisolC every 5 weeks. Most recently, brid.zzz was updated on October 14, 2026 and SleepisolC on October 7, 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.*