# What Sticks vs ZzzBank

The clearest difference is update cadence: ZzzBank at weekly against What Sticks's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

What Sticks ships an update every 2 months, ZzzBank weekly. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | What Sticks | ZzzBank |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/what-sticks/id6670183165/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | — |
| Size | 3 MB | 32 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nick Rodriguez](https://appshunter.io/developer/1634549750) | [Inho Lee](https://appshunter.io/developer/1760174305) |

## What reviewers say

### What Sticks

[App page](https://appshunter.io/ios/app/what-sticks/id6670183165)

This app helps you understand how sleep, exercise, and walking habits are related. It analyzes data from your devices to reveal personal correlations and provide insights into your wellness.

**Highlights:** Create relationship tables, Analyze sleep, exercise, and walking data, Uncover wellness factors, Evidence-based self-understanding, View data on iPhone tables, Access algorithms on GitHub

**Features:** macOS Compatibility

**In-app purchases:** none


### ZzzBank

[App page](https://appshunter.io/ios/app/zzzbank/id6743993856)

**In-app purchases:** none


## Frequently asked questions

### Is What Sticks free?

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

### Is ZzzBank free?

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

### Do What Sticks or ZzzBank have ads?

Neither What Sticks nor ZzzBank shows ads.

### Which is updated more often, What Sticks or ZzzBank?

What Sticks ships an update every 2 months, and ZzzBank weekly. Most recently, What Sticks was updated on November 4, 2026 and ZzzBank on November 8, 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.*