The Ohio Study vs Cali AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Ohio Study
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The purpose of the Ohio Study application is to enable participation in the Ohio Study, conducted by researchers at The Ohio State University. The Ohio Study is intended for adolescents 13-17 years of age and investigates how adolescents’ daily activities, relationships, and social media habits influence their mental and physical well-being. This application will make it possible to estimate the time spent using the smartphone, the type of activities and applications used on a daily basis (e.g., social media, messaging, streaming) as well as the places you go. Questionnaires will also be sent to the application to learn more about the mental and physical well-being, lifestyle patterns, and personal characteristics of the participants. The knowledge gained from this study will provide information needed to develop effective interventions aimed at promoting the mental and physical well-being of adolescents.
Cali AI
Effortlessly track your nutrition with AI-powered food scanning and manual entry. Monitor calories, macros, and water intake with a customizable interface and personalized goals. Build healthier habits with detailed logs and an interactive dashboard.
- AI-powered food scanning
- Manual food entry
- Calorie and macro calculation
- Customizable dashboard
- Daily logs and history
- Personalized goals
- Water and workout tracking
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Cali Ai makes tracking your nutrition effortless with powerful AI and a clean, customizable interface. Scan meals using your camera or enter items manually, and let the app calculate calories, macros, and water goals instantly. Your personal dashboard shows progress at a glance, while daily logs keep you on track over time. Customize your experience during onboarding with unit selection and color themes, then fine‑tune settings any time. Cali Ai supports weight goals, activity levels, and full profile management — all designed to help you build healthier habits. Features AI‑powered food scanning: just point & shoot to log meals Manual search and quick entry for any food item Interactive dashboard with remaining/total/net calories Detailed daily logs & history Personalized goals and profile settings Custom onboarding with unit, theme & color choice Water tracking (oz/ml) and workout logging Dark mode support and tablet friendly Join thousands of users who’ve made nutrition tracking simple, fast, and smart with Cali Ai. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The Ohio Study and Cali AI are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
The Ohio Study ships an update fortnightly, Cali AI every 3 weeks. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.
| Parameter | The Ohio Study | Cali AI |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 94 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Avicenna Research Inc. | Noah M |
In-app purchases
The Ohio Study
No in-app purchases
Cali AI
No in-app purchases
