# PureStrength (FormCheck AI) 根据 OpenAITools.app 于 2026-11-11 核对的流量数据，PureStrength (FormCheck AI)（apps.apple.com）是一个收录在 AI 健身下的 AI 平台，月访问量为 0，月度环比流量变化为 +0（0.0%）。其主要地理市场为全球（— 流量份额），采用免费定价模式。按月流量计算的主要竞争替代方案包括 FitnessAI（17.45万次访问/月），Planfit - AI 私人教练（13.77万次访问/月），Kiwi Fitness（5785 次访问/月）。 FormCheck AI (formerly PureStrength) is an iOS app that analyses videos of your squat, bench press and deadlift and gives instant feedback on your lifting technique. It is built by Purestrength Limited and pairs on-device computer vision with a coaching-style feedback layer, so you get specific cues about depth, bar path, hip position and lockout instead of a raw number. ## 关键遥测与规格 | 指标 | 数值 | | :--- | :--- | | 工具名称 | PureStrength (FormCheck AI) | | 标识 | purestrength | | Status | active | | Origin | independent | | Maintenance | active | | 官方域名 | apps.apple.com | | 官网地址 | https://apps.apple.com/gb/app/purestrength/id1621267448 | | 分类 | AI 健身, AI 教练辅导, AI 助手, AI 体育工具, AI 医疗健康 | | 定价模式 | 免费 | | 月访问量 | 0 | | 月度环比流量变化 | 0 | | 月度环比增长率 | — | | 主要市场 | 全球 | | 市场份额 | — | | 直接访问量 | 0 | | 自然搜索访问 | 0 | | 社交访问 | 0 | | 推荐访问 | 0 | | 邮件访问 | 0 | | 评价得分 | 4.1 | | 收藏数 | 1 | | 支持平台 | 应用 | | 计费平台 | | | 属性 | 功能: 应用; 定价: 免费试用 | | 标签 | AI 私人教练, 动作分析, 举重, 深蹲, 卧推, 硬拉, 健身, 力量训练, 运动, 杠铃轨迹分析, 1RM 计算, 基于速度的训练 | ## 概览 FormCheck AI (formerly PureStrength) is an iOS app that analyses videos of your squat, bench press and deadlift and gives instant feedback on your lifting technique. It is built by Purestrength Limited and pairs on-device computer vision with a coaching-style feedback layer, so you get specific cues about depth, bar path, hip position and lockout instead of a raw number. ## 定价与套餐 Free to download and use as of version 3.0 (January 2025), with optional in-app purchases. The app was previously subscription-based; verify the current pricing and any in-app offers on the App Store page for your region. ## 关键功能与能力 - **Deadlift form correction:** Track hip movement, shoulder position and lockout so you avoid a rounded back and get a clean pull. - **Squat form analysis:** Depth monitoring plus alignment and balance alerts so you activate the right muscles on every rep. - **Bench press guidance:** Feedback on bar path, control, grip and elbow position across the press. - **On-device 3D analysis:** In-app 3D rendering and slow-motion playback let you replay each rep and see exactly where technique breaks down. - **Form library and content:** Articles and videos on lifting technique, nutrition and recovery sit alongside a library of sample lifts. ## 主要用例 - **Clean up the big three (Powerlifter):** Review every working set against the app's form checklist and catch hip shift, shallowness or a soft lockout before it becomes a habit. - **Self-review between sessions (Strength coach):** Let lifters film their lifts and compare the app's cues against your own coaching notes between sessions. - **Learn technique safely (Beginner lifter):** Use bar-path and depth feedback to learn a new movement pattern with objective reference points. - **Return-to-lifting monitoring (Athlete returning from injury):** Track velocity-based programs and range of motion over time to monitor progress across a training block. ## 优势 - Detailed, lift-specific cues for squat, bench press and deadlift rather than generic rep counting. - On-device processing keeps training videos private and works without a constant connection. - 3D rendering and slow-motion replay make it easy to see exactly where form breaks down. - Became free to use in 2025, removing the previous subscription barrier. - Runs on iPhone, iPad, Mac (Apple silicon) and Apple Vision. - Regular updates from an active developer. ## 局限 - Focused on only three lifts (squat, bench press, deadlift), so it is not a general-purpose workout tracker. - Analysis quality depends on how well you frame and film your set; poor angles produce weaker feedback. - Larger download (~495 MB) because the computer-vision models run on the device. - iOS/visionOS only — no Android or web version. - Text feedback style may feel terse compared with a human coach. ## 常见问题 ### Is FormCheck AI the same app as PureStrength? PureStrength was rebranded to FormCheck AI. The same App Store listing and developer (Purestrength Limited) remain, and version 3.2 in January 2025 switched on 3D analysis by default. ### Which exercises can it analyse? The app analyses squat, bench press and deadlift, plus added support for bent-over rows and bicep curls. Each movement gets its own set of form checks — for example hip and shoulder position on the deadlift, depth on the squat, and bar path on the bench press. ### Do I need special equipment? You film your set on your phone, then the app tracks the bar and your body segments and returns annotated feedback, slow-motion playback and 3D rendering. No external hardware or verified coaching credentials are required to use it. ### Is the app free? Yes. As of version 3.0 (January 2025) the app became free to use, with optional in-app purchases. Check the App Store listing for the current details in your region. ### PureStrength (FormCheck AI) 的月流量和增长趋势如何？ PureStrength (FormCheck AI) 目前每月获得 0 访问量，月度环比流量变化为 +0（增长率 0.0%）。其主要来源市场是全球（— 份额），包括每月 0 次直接访问和每月 0 次自然搜索访问。 ### PureStrength (FormCheck AI) 免费吗？它的定价模式是什么？ PureStrength (FormCheck AI) 采用免费定价模式。Free to download and use as of version 3.0 (January 2025), with optional in-app purchases. The app was previously subscription-based; verify the current pricing and any in-app offers on the App Store page for your region. 支持的计费和结账平台包括：未列出。 ### 2026 年 PureStrength (FormCheck AI) 的最佳替代方案有哪些？ 基于 OpenAITools.app 的分类流量和功能契合度，PureStrength (FormCheck AI) 的前五个替代方案是：1. FitnessAI（17.45万次访问/月）; 2. Planfit - AI 私人教练（13.77万次访问/月）; 3. Kiwi Fitness（5785 次访问/月）; 4. SHRED（5.74万次访问/月）; 5. Trainer+ by Vitruvian（1.81万次访问/月）。 ### PureStrength (FormCheck AI) 支持哪些平台和核心 AI 能力？ PureStrength (FormCheck AI) 被归类在 AI 健身, AI 教练辅导, AI 助手, AI 体育工具下，支持以下平台：应用，其核心能力标签包括：AI 私人教练, 动作分析, 举重, 深蹲, 卧推, 硬拉。 ## 替代工具 | 工具名称 | 月访问量 | 定价模式 | 对比 | | :--- | :--- | :--- | :--- | | [FitnessAI](https://openaitools.app/zh/tool/fitnessai-com) | 174,453 | 免费增值 | [对比](https://openaitools.app/zh/compare/fitnessai-com-vs-purestrength) | | [Planfit - AI 私人教练](https://openaitools.app/zh/tool/planfit-ai-personal-trainer) | 137,689 | 免费 | [对比](https://openaitools.app/zh/compare/planfit-ai-personal-trainer-vs-purestrength) | | [Kiwi Fitness](https://openaitools.app/zh/tool/kiwi-fitness) | 5,785 | 免费增值，免费试用 | [对比](https://openaitools.app/zh/compare/kiwi-fitness-vs-purestrength) | | [SHRED](https://openaitools.app/zh/tool/shred) | 57,430 | 免费增值，免费试用 | [对比](https://openaitools.app/zh/compare/purestrength-vs-shred) | | [Trainer+ by Vitruvian](https://openaitools.app/zh/tool/vitruvianform-com) | 18,126 | 付费 | [对比](https://openaitools.app/zh/compare/purestrength-vs-vitruvianform-com) | | [BodBot](https://openaitools.app/zh/tool/bodbot-com) | 25,589 | 免费增值 | [对比](https://openaitools.app/zh/compare/bodbot-com-vs-purestrength) | | [JuggernautAI](https://openaitools.app/zh/tool/juggernautai-app) | 6,909 | 免费试用，付费 | [对比](https://openaitools.app/zh/compare/juggernautai-app-vs-purestrength) | | [Forma](https://openaitools.app/zh/tool/forma) | 2,864 | 免费 | [对比](https://openaitools.app/zh/compare/forma-vs-purestrength) | | [Peak Strength](https://openaitools.app/zh/tool/peakstrength-app) | 44,681 | 免费试用 | [对比](https://openaitools.app/zh/compare/peakstrength-app-vs-purestrength) | | [MyCoach Ai](https://openaitools.app/zh/tool/mycoachai-com) | 15,959 | 免费试用，付费 | [对比](https://openaitools.app/zh/compare/mycoachai-com-vs-purestrength) | | [SmartGym](https://openaitools.app/zh/tool/smartgym) | 4,332 | 免费增值，免费 | [对比](https://openaitools.app/zh/compare/purestrength-vs-smartgym) | | [Jamie's Fit](https://openaitools.app/zh/tool/jamie-s-fit) | 1,435 | 免费增值 | [对比](https://openaitools.app/zh/compare/jamie-s-fit-vs-purestrength) | --- 来源：https://openaitools.app/zh/tool/purestrength