Project PROTECTS vs Rhythm Lighting
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Project PROTECTS
This research study invites adults in the US to help understand the effects of respiratory infections. Participants need a smartphone, email, and internet access to contribute to vital health research.
- Participate in health research
- Understand infection effects
- Smartphone required
- US-based eligibility
- Contribute to scientific understanding
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Project PROTECTS is inviting 6,000 adults across the United States to help researchers better understand the short- and long-term effects of respiratory infections. Project PROTECTS is a collaboration between researchers at the City University of New York (CUNY) Institute for Implementation Science in Population Health (ISPH) and Pfizer. You are eligible to participate in Project PROTECTS if you: - Are 18 years or older - Live in a US state, DC, or Puerto Rico - Have a personal smartphone with a working camera - Have a personal email address - Have internet access If you have any questions, comments, or concerns about the research, you can contact a study coordinator at: ProjectProtects@sph.cuny.edu
Rhythm Lighting
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PERFORMANCE LIGHTING Light shapes how you show up. Clear mornings. Steady energy through the day. Sharper focus when it matters. Easier wind-down at night. Deeper, more consistent sleep. Rhythm brings your environment into alignment with your natural rhythm—so your body and mind perform the way they’re supposed to. Wake better. Work better. Recover better. Compatible with Philips Hue, Rhythm Server, and Home Assistant. Learn more: https://rhythm.lighting
Screenshots
Verdict
The clearest difference is update cadence: Rhythm Lighting at every 2 weeks against Project PROTECTS's monthly. 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.
Project PROTECTS ships an update monthly, Rhythm Lighting every 2 weeks. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.
| Parameter | Project PROTECTS | Rhythm Lighting |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 80 MB | 37 MB |
| Age rating | 17+ | 4+ |
| Developer | Vibrent Health, Inc. | DT Concepts, LLC |
In-app purchases
Project PROTECTS
No in-app purchases
Rhythm Lighting
No in-app purchases
Questions
Is Project PROTECTS free?
Is Rhythm Lighting free?
Do Project PROTECTS or Rhythm Lighting have ads?
Which is updated more often, Project PROTECTS or Rhythm Lighting?
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