# SnapCal > SnapCal is an iPhone food diary and photo calorie estimation app. Recognition and nutrition values are estimates and should be reviewed before saving. SnapCal is not a medical device. Official App Store app ID: 6813431908 Support: support@capyka.com Languages: Simplified Chinese and English ## Simplified Chinese - [SnapCal — AI 拍照记热量、饮食记录与体重管理 App](https://snapcal.wolel.com/): SnapCal 是 iPhone 上的 AI 拍照记热量与饮食记录 App。拍照估算热量、蛋白质、碳水和脂肪,记录饮食日记与体重趋势,每天 3 次免费 AI 识别。前往 App Store 下载。 - [关于 SnapCal|产品与团队](https://snapcal.wolel.com/about.html): 了解 SnapCal 的产品理念、上线时间、功能边界、开发团队和联系方式。 - [每日热量需求计算器(EER)|SnapCal](https://snapcal.wolel.com/daily-calorie-needs-calculator.html): 根据年龄、身高、体重和活动水平估算成年人每日能量需求。使用 2023 年美国国家科学院 EER 方程。 - [外食和外卖怎么估算热量?|SnapCal](https://snapcal.wolel.com/eating-out-calories.html): 用菜单、照片、份量和拆分记录估算外食热量,重点核对用油、酱料、饮料和可食用份量。 - [怎么开始饮食记录?热量、营养与体重日记指南|SnapCal](https://snapcal.wolel.com/food-diary.html): 用拍照、手动搜索、最近吃过和复制餐食开始记录饮食。SnapCal 帮你查看每日热量、蛋白质、碳水、脂肪及体重趋势。 - [饮食记录与营养计算指南|SnapCal](https://snapcal.wolel.com/guides.html): SnapCal 饮食记录、拍照热量、三大营养素、体重趋势与浏览器内营养计算工具。 - [三大营养素比例计算器|SnapCal](https://snapcal.wolel.com/macro-calculator.html): 输入每日热量与碳水、蛋白质、脂肪占比,计算对应克数。所有输入仅在浏览器内处理。 - [AI 拍照算热量准吗?误差来源与核对方法|SnapCal](https://snapcal.wolel.com/photo-calorie-accuracy.html): 了解拍照识别热量的主要误差来源,以及如何核对食物、分量、油和酱料,让记录更接近实际。 - [怎么用照片记录热量?AI 拍照记餐指南|SnapCal](https://snapcal.wolel.com/photo-calorie-tracker.html): 用 SnapCal 拍照记录餐食,核对食物、调整分量并保存热量与营养估算。了解照片识别的限制,避免漏记油和酱料。 - [拍照记录和手动记录怎么选?|SnapCal](https://snapcal.wolel.com/photo-vs-manual-logging.html): 比较拍照识别、手动搜索、快速热量和复制餐食的适用场景,按信息量和记录速度选择方法。 - [SnapCal 隐私政策](https://snapcal.wolel.com/privacy.html): SnapCal iOS 隐私政策:本机记录、可选 Apple 登录与云同步、拍照识别、社区、Apple 健康、广告及数据删除说明。 - [SnapCal 技术支持](https://snapcal.wolel.com/support.html): SnapCal 技术支持:联系方式、常见问题解答(识别不准、订阅取消、退款、数据迁移与删除)。 - [SnapCal 使用条款](https://snapcal.wolel.com/terms.html): SnapCal 使用条款与订阅说明:自动续期规则、如何取消、免费试用与退款方式,以及免责声明。 - [减脂期怎么记录热量?从基线到趋势|SnapCal](https://snapcal.wolel.com/track-calories-for-fat-loss.html): 用饮食日记建立热量基线,关注连续趋势并减少漏记。了解为什么估算值需要结合体重变化调整。 - [碳水、脂肪、蛋白质怎么记录?|SnapCal](https://snapcal.wolel.com/track-macros.html): 了解三大营养素的记录顺序、常见漏项,以及如何把克数换算为热量占比。 - [蛋白质怎么记录?高蛋白饮食入门|SnapCal](https://snapcal.wolel.com/track-protein.html): 从食物重量、营养标签和每日总量开始记录蛋白质,避免只记录主菜或把份量当成蛋白质克数。 - [体重趋势怎么看?不要只盯一天|SnapCal](https://snapcal.wolel.com/weight-trend.html): 在相近条件下记录体重,用连续趋势而不是单日波动判断变化,并把饮食与活动记录放在一起观察。 - [SnapCal 适合谁、不适合谁?|产品说明](https://snapcal.wolel.com/who-snapcal-is-for.html): 了解 SnapCal 的适用场景、功能边界、免费版与联网要求,再决定是否适合自己的饮食记录方式。 ## English - [SnapCal — AI Calorie Tracker & Food Diary for iPhone](https://snapcal.wolel.com/en/): Log meals with a photo. SnapCal for iPhone estimates calories and macros, tracks your food diary and weight, and includes 3 free AI scans a day. Download on the App Store. - [About SnapCal | Product and Team](https://snapcal.wolel.com/en/about.html): Learn about SnapCal’s purpose, launch, product boundaries, team and contact details. - [Daily Calorie Needs Calculator (EER) | SnapCal](https://snapcal.wolel.com/en/daily-calorie-needs-calculator.html): Estimate adult daily energy requirements from age, height, weight and activity using the 2023 National Academies EER equations. - [How to Estimate Calories When Eating Out | SnapCal](https://snapcal.wolel.com/en/eating-out-calories.html): Use menus, photos, portions and split entries to estimate restaurant meals, with special attention to oils, sauces, drinks and edible portions. - [How to Start a Food Diary & Track Macros | SnapCal](https://snapcal.wolel.com/en/food-diary.html): Start a food diary with photos, manual food search or meal copying. Review daily calories, protein, carbs, fat and weight trends with SnapCal for iPhone. - [Food Logging Guides & Nutrition Calculators | SnapCal](https://snapcal.wolel.com/en/guides.html): SnapCal guides for food logging, photo calorie estimates, macros, weight trends and browser-only nutrition calculators. - [Macro Calculator: Carbs, Protein and Fat | SnapCal](https://snapcal.wolel.com/en/macro-calculator.html): Enter daily calories and percentage shares for carbohydrate, protein and fat to calculate grams. Inputs stay in your browser. - [How Accurate Is AI Photo Calorie Tracking? | SnapCal](https://snapcal.wolel.com/en/photo-calorie-accuracy.html): Understand the main sources of error in photo calorie estimates and how to review foods, portions, oils and sauces before saving. - [How to Track Calories from a Photo | SnapCal](https://snapcal.wolel.com/en/photo-calorie-tracker.html): Learn how to photograph a meal, review the food recognition result, adjust portions and save estimated calories and macros with SnapCal for iPhone. - [Photo Logging vs Manual Food Logging | SnapCal](https://snapcal.wolel.com/en/photo-vs-manual-logging.html): Compare photo recognition, manual search, quick calories and meal copying, then choose based on available information and speed. - [SnapCal Privacy Policy](https://snapcal.wolel.com/en/privacy.html): SnapCal iOS privacy policy covering local data, optional Apple sign-in and sync, photo recognition, community, Apple Health, ads and deletion. - [SnapCal Support](https://snapcal.wolel.com/en/support.html): SnapCal support: contact details and answers about scan accuracy, cancelling a subscription, refunds, migrating and deleting your data. - [SnapCal Terms of Use](https://snapcal.wolel.com/en/terms.html): SnapCal terms of use and subscription terms: auto-renewal, how to cancel, free trials, refunds and disclaimers. - [How to Track Calories for Fat Loss | SnapCal](https://snapcal.wolel.com/en/track-calories-for-fat-loss.html): Build a calorie baseline with a food diary, follow trends and reduce missing entries. Learn why estimates need adjustment over time. - [How to Track Macros: Carbs, Protein and Fat | SnapCal](https://snapcal.wolel.com/en/track-macros.html): Learn a practical order for logging carbohydrates, protein and fat, common omissions, and how grams translate into calorie shares. - [How to Track Protein Intake | SnapCal](https://snapcal.wolel.com/en/track-protein.html): Start with food weight, nutrition labels and daily totals. Avoid confusing the weight of a food with grams of protein. - [How to Read Your Weight Trend | SnapCal](https://snapcal.wolel.com/en/weight-trend.html): Record weight under similar conditions and use a continuous trend rather than a single-day change to assess direction. - [Who SnapCal Is For — and Who It Is Not For](https://snapcal.wolel.com/en/who-snapcal-is-for.html): Review SnapCal’s use cases, limits, free plan and connectivity needs before deciding whether it fits your food logging routine. ## Product facts - A user can log food without signing in. - Optional Sign in with Apple enables account features and cloud snapshot sync. - Photo recognition sends a resized, metadata-stripped image for analysis after the user starts a scan; the scan image is not retained by SnapCal after the result. - Health data access is optional and controlled through Apple Health permissions. - The free plan includes three photo scans per day; current paid features and prices are shown in the app.