Evidation vs Traffic Light Log by CHAICore
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Evidation
Earn rewards for healthy actions like walking and exercising. Contribute to medical research by securely sharing your health data. Track your progress and sync with popular fitness apps and wearables.
- Earn rewards for health actions
- Participate in health research
- Track and sync health data
- Personalized health insights
- Health dashboard
- Answer health surveys
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Understand your health. Stay connected. Take part in RESEARCH. Evidation helps you learn more about your health data. Connect your health apps and wearables to see trends in activity, sleep, heart health, and more. Get INSIGHTS that help you better understand your everyday health. Stay motivated with Circles by inviting friends and family and comparing steps on a shared leaderboard. You can also join research studies that help advance health and medical research. Depending on the study, you may answer surveys, share health data, or complete other activities. Eligible studies may offer cash or other rewards for participating. With Evidation, you can: Understand your health: See trends and insights from your health data. Connect with Circles: Invite friends or family to your Circle and see how your steps compare on a shared leaderboard. Join research studies: Contribute to research that can help improve health and healthcare. Connect your devices: Sync supported apps and wearables like Apple Health, Fitbit, Samsung Health, Google Fit, and Oura. Earn rewards: Get rewarded for eligible studies and select activities. Your data, your choice You stay in control of your information. Your health data is shared only with your consent or at your request. Join millions of Evidation members learning from their health data, staying motivated together, and helping move research forward. Learn from your data. Connect with others. Contribute to research.
Traffic Light Log by CHAICore
This wellness app helps you monitor your food consumption by categorizing meals into red, yellow, and green. It provides nutritional information for each food item, promoting healthier eating habits.
- Food intake tracking
- Nutritional information
- Red, yellow, green food categories
- Wellness monitoring
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Traffic Light Log is a wellness app that allows anyone to track their food intake and view their related nutritional information. Foods are sorted into red, yellow and green categories. Green foods are the healthiest food options whereas red are the unhealthiest.
Screenshots
Verdict
The clearest difference is rating: Traffic Light Log by CHAICore at 5.0 against Evidation's 4.6. Traffic Light Log by CHAICore also leads on iOS requirement (14.0 vs 16.4). Evidation's advantage is update cadence (every 3 days vs every 2 months) and ratings volume (29K vs 1). On price, ads, in-app purchases and monetization model 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.
Traffic Light Log by CHAICore holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Evidation has 29K ratings behind it against 1, so its average is the more settled of the two.
Evidation ships an update every 3 days, Traffic Light Log by CHAICore every 2 months. The most recent releases landed on October 27, 2026 and October 19, 2026 respectively.
| Parameter | Evidation | Traffic Light Log by CHAICore |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (29K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 49.8% of reviews | — |
| Number of ratings | 29K — better | 1 |
| Update frequency | Every 3 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.4 | 14.0 — better |
| Further details — not scored | ||
| Size | 73 MB | 31 MB |
| Age rating | 17+ | 4+ |
| Developer | Evidation Health, Inc. | University of North Carolina at Chapel Hill |
Customer experience
Evidation
Traffic Light Log by CHAICore
Bugs and requests
Evidation
Reported bugs
3 issues- Missing activity data
- Inconsistent point calculations
- Login and sign-out issues
Requested features
4 requests- More frequent reward payouts
- Improved app syncing and data accuracy
- Expanded survey and study opportunities
- Customizable point tracking and goals
Traffic Light Log by CHAICore
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Evidation
No in-app purchases
Traffic Light Log by CHAICore
No in-app purchases
Questions
Is Evidation free?
Is Traffic Light Log by CHAICore free?
Which has better reviews, Evidation or Traffic Light Log by CHAICore?
Do Evidation or Traffic Light Log by CHAICore have ads?
Which is updated more often, Evidation or Traffic Light Log by CHAICore?
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