Greenlight vs Project 61
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Greenlight
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Greenlight is a research-backed mobile application that helps users monitor cognitive readiness, fatigue, and overall physiological well-being. By providing personalized insights, Greenlight promotes greater self-awareness and supports informed behavioral changes that can enhance performance, health, and resilience.
Project 61
A free health platform designed for professional truck drivers, offering tools and resources to improve weight, energy, and overall well-being. It focuses on practical habits for life on the road, including nutrition, fitness, and mental health.
- Daily tracking tools
- Quick workouts
- Health reminders
- Personalized screening guides
- Nutrition, fitness, and lifestyle challenges
- Community access
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Take control of your health with Project 61, the first-ever free health platform built for professional truck drivers, by people who understand life on the road. Whether you want to lose weight, improve your energy, or just feel better day to day, you’ll find the tools, resources, and community to help you get there. The Project 61 app empowers professional truck drivers to take control of their health with simple, practical tools built for the realities of the road. Built on the 5 Axles of Health™—Fuel, Move, Recharge, Mental Drive, and Preventative Maintenance—the app makes it easy to build lasting habits through daily tracking, quick workouts, health reminders, personalized screening guides, and ongoing motivation. Within the app, you will find a straightforward roadmap to better health, more energy, improved well-being, and a longer, healthier career behind the wheel. By joining the Project 61 Community, you’ll get instant access to: * Daily and weekly nutrition, fitness, and lifestyle challenges designed for life on the road * Tools to track your health progress anytime, anywhere * Exclusive access to industry-wide challenges * Education and resources tailored to professional drivers Join the Movement. Take control of your health. And do it with thousands of other drivers walking the same road. Project 61 is a nonprofit organization dedicated to improving the life expectancy and health of professional drivers nationwide.
Screenshots
Verdict
The clearest difference is update cadence: Project 61 at weekly against Greenlight's every 18 months. Project 61 also leads on iOS requirement (14.0 vs 17.2). 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.
Greenlight ships an update every 18 months, Project 61 weekly. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.
| Parameter | Greenlight | Project 61 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (6 ratings) — better |
| Number of ratings | — | 6 — better |
| Update frequency | Every 18 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.2 | 14.0 — better |
| Further details — not scored | ||
| Size | 339 MB | 87 MB |
| Age rating | 17+ | 12+ |
| Developer | Design Interactive Inc. | Offshift, Inc |
In-app purchases
Greenlight
No in-app purchases
Project 61
No in-app purchases









