Project VIIBE vs InLoop
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Project VIIBE
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The Project VIIBE app is a research tool designed to help understand how hormones influence daily life in young adults aged 18β24. Using this app, participants can track how hormones relate to their mood, thoughts, and everyday habits, including vaping, drinking, or cannabis use. Hormones naturally fluctuate throughout the menstrual cycle and can also be influenced by birth control. These changes may affect how people feel, think, and behave, but very little research has explored these effects in real life over time. This app allows researchers to collect real-time data directly from participantsβ daily experiences to better understand these patterns. By logging daily experiences in the app, participants provide valuable insights into how natural hormone cycles and birth control affect mood, stress, and habits. This information can help researchers study links between hormones and behaviors, ultimately contributing to a better understanding of health, wellness, and substance use in young adults. The app is easy to use and designed for daily check-ins. Participants can record their experiences quickly, including the number of times they vape or use other substances, how they are feeling, and other relevant daily experiences. All data are securely collected and used only for research purposes. Whether youβre tracking natural hormone changes or the effects of birth control, your daily entries will help researchers gather detailed information about how hormones influence everyday life, providing insights that could improve health and well-being for young adults.
InLoop
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InLoop β Period Tracker for You and the People Who Support You You donβt have to go through your cycle alone. ---------- InLoop is a period tracker and cycle tracker designed not only for you, but also for the people who care about you. Track your menstrual cycle, understand your patterns, and share updates with those you trust. β Track your cycle with clarity Log your period and view your current cycle in a simple and intuitive interface. Build your cycle history over time and stay aware of your body. β Privacy comes first Your data belongs to you. InLoop is designed so that you stay in control at all times. - Choose exactly what information is shared - No one can access your data without your permission β Designed for real-life use InLoop is built with simplicity, privacy, and respect at its core. Whether you are tracking for yourself or sharing with someone close, your experience stays personal and secure. Note: InLoop is designed for personal tracking and awareness. It is not a medical or diagnostic tool. InLoop helps turn cycle tracking into shared understanding. Your cycle. Your control. Their understanding. One loop. ---------- Terms of service: https://inloop.life/terms-of-service Privacy policy: https://inloop.life/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: Project VIIBE at none against InLoop's 2. On price, update cadence, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. InLoop sells 2 in-app purchases, starting at $2.99 per month. Project VIIBE asks for nothing beyond the download.
Project VIIBE ships an update fortnightly, InLoop weekly. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.
| Parameter | Project VIIBE | InLoop |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Weekly β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 β better | 17.6 |
| Further details β not scored | ||
| Size | 210 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Avicenna Research Inc. | StableVortex OU |
In-app purchases
Project VIIBE
No in-app purchases
InLoop
- InLoop Premium$2.991 Month
- InLoop Premium$19.991 Year









