YAZIO Review For Calorie And Fasting Features review

YAZIO is a consumer self-tracking app built around a calorie and food diary. You can record meals, review calories and macronutrients, and track water, activities, steps, body weight, and selected body or health values. Its optional fasting area adds eating-window reminders and timers, including a free 16:8 program. The official tutorial says other fasting trackers and weekly or monthly analysis require Pro. The app is available for Android and Apple devices. The US App Store listing supports iPhone, iPad, and Apple Watch, while the Google Play listing covers Android. Apple Health and Health Connect connections are available to free users; YAZIO currently places direct Fitbit, Garmin, Polar Flow, and Samsung Health connections behind Pro. The useful distinction is that YAZIO organizes information you enter or synchronize. It does not directly verify portion size, nutritional content, hydration, or your physical response to a fasting schedule. Treat its dashboard as a pattern-finding tool, not a precise measurement of what your body consumed, absorbed, or needs.

You can download and use YAZIO free, although the store listings disclose advertising and in-app purchases. The free version includes the food diary, daily analysis, and the 16:8 fasting tracker. According to YAZIO’s current Pro feature guide, Pro adds AI photo-based food tracking, detailed nutrient information, future meal planning, the full recipe database, additional fasting plans, longer-term statistics, diary customization, an ad-free experience, and several direct wearable integrations. Pricing is less straightforward. When checked on July 13, 2026, Apple’s US subscription panel displayed a 12-month offer at $47.90. Its broader in-app-purchase list also showed several differently labeled offers between $11.90 and $47.90, including three-month and semiannual products. Those entries do not establish which offer every new customer will receive. Android, website, promotional, and returning-customer prices may differ. YAZIO says a seven-day website trial is offered only occasionally. Check the exact trial availability, charge date, subscription period, and renewal amount on the final purchase screen. If you subscribe through an app store, cancellation is managed through that store; website subscriptions use YAZIO’s account controls.

YAZIO works best when you use calorie and macro totals as estimates. Database entries may differ, serving sizes can be misjudged, and restaurant meals are difficult to calculate. AI photo logging can reduce typing, but image recognition cannot reliably identify every ingredient, preparation method, or portion. Review suggested entries instead of assuming that a precise-looking number is accurate. The fasting feature is a schedule and reminder tool. It does not monitor hydration, nutritional adequacy, dizziness, blood glucose, digestive symptoms, or medication response. YAZIO’s own health notice says the company is not a medical organization and its recommendations, including AI-generated guidance, are not medical advice. A logged or synchronized blood-pressure or glucose value is likewise not a diagnosis. This boundary matters if you use a GLP-1 medication, insulin, or another prescription affected by food timing, or if you have diabetes. NIDDK guidance says medication monitoring may be necessary when people with diabetes adopt fasting windows and advises against fasting for people with an eating-disorder history; it also identifies pregnancy as a group lacking adequate research. Discuss fasting, aggressive calorie targets, poor intake, or concerning symptoms with a licensed clinician. YAZIO is a consumer wellness app, not an FDA-cleared diagnostic or monitoring device.

YAZIO handles more than meal names. Its April 2026 privacy policy lists age, gender, height, diet, goals, activity, calories, steps, weight history, blood pressure, fasting hours, water consumption, and favorite recipes among data users may provide. It also records technical information such as operating system, locale, IP address, app version, and time zone. If you connect a health platform, additional categories may flow between services. Apple Health integration can include activity, weight, waist size, blood pressure, glucose, BMI, and menstrual-cycle information, depending on your permissions. Apple’s developer-reported privacy label says health and fitness data may be linked to you for app functionality. It also says identifiers may be used to track you across other companies’ apps and websites and identifies a user ID for third-party advertising. Google Play’s developer-reported label says the app may share location, personal information, and device identifiers and may collect health and fitness data. These store disclosures are not independently verified by Apple or Google. YAZIO also says profile and activity data support AI personalization and identifies OpenAI Ireland as an AI service provider. It says API data are not used to train general language models. Limit exposure by enabling only needed permissions and periodically reviewing both YAZIO and health-platform settings.

YAZIO is a reasonable choice if your main goal is to keep a consistent food diary, watch broad calorie or macro patterns, and optionally place meal timing in the same interface. It is especially practical when you prefer self-guided tracking and are willing to verify questionable food entries. The free version is enough to test whether logging feels sustainable before paying for recipes, deeper analysis, AI input, or additional integrations. Look elsewhere if you want a clinician-supervised program, verified meal measurements, continuous symptom monitoring, or a tool that can make treatment decisions. It may also be a poor fit if detailed calorie targets encourage guilt, anxiety, compulsive checking, or restrictive eating. A simpler meal journal—or professional support—may be more appropriate in those cases. Do not assume that combining calorie tracking with fasting makes the plan more effective or suitable for you. The CDC’s healthy-weight guidance emphasizes eating patterns, physical activity, sleep, stress management, medical conditions, and medications rather than calorie totals alone. Judge YAZIO by whether it helps you build a realistic weekly routine without crowding out those factors. The app can organize your records; it cannot tell you whether a calorie target or fasting schedule is medically appropriate.