What Sticks vs ZzzBank
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
What Sticks
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.
- 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
Read full descriptionHide full description
1) What does it do? Create tables that display relationships between sleep, exercise and walking. What Sticks employs a straightforward approach to uncover the factors that influence your wellness. We believe in a holistic approach to health and wellness and to accomplish this we should access all available levers available to us – including our data. 2) Why? Purpose: What Sticks is designed for users who seek to understand themselves better using an evidence-based approach. We help answer personal questions such as: "Do I really sleep better when I exercise to the point of exhaustion?" "How does cloudiness affect my walking habits?" "Does weather influence my exercise routines?" 3) How? Methodology: We harness the power of vast amounts of data already being collected from your devices. What Sticks provides simple, yet insightful statistical analyses, displaying correlations in user-friendly tables. Our approach is straightforward and unapologetically blunt in order to provide directionally correct and transparent answers now. We are constantly updating the website and users can view the data collected and restructured to produce the correlations that are displayed on their iPhone tables at https://what-sticks.com/user_home after logging in. For more in depth details into how calculations are made visit our GitHub page with the algorithms used to make the calculations: https://github.com/costa-rica/WhatSticks13DataTools. 4) Our Mission Mission Statement: Our mission at What Sticks is to pioneer a shift toward personalized, holistic healthcare. We believe in harnessing precise data collection and analysis as a cornerstone for advancing Precision Medicine, ultimately enhancing individual health outcomes across the globe.
ZzzBank
Read full descriptionHide full description
Track your sleep, borrow when needed, and repay with rest ▶ Borrow Sleep Too busy to rest? Borrow sleep to stay focused. ▶ Repay Sleep Pay back every hour you’ve borrowed. Tap the notification to check your updated sleep data. ▶ Sleep History View all your borrow and repay records. ▶ Meet Pebby Your buddy changes with your sleep status. Inspired by the “Sleep Bank” episode from the webtoon "Lee Mal-nyeon series". Special thanks for the inspiration.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | What Sticks | ZzzBank |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 3 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Nick Rodriguez | Inho Lee |
In-app purchases
What Sticks
No in-app purchases
ZzzBank
No in-app purchases









