Sigma vs 轻练
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sigma
This app offers a clean and engaging running experience with detailed analysis and personalized AI coaching. Track your runs, visualize your progress, and collect memories of your journeys on a unique map.
- Ad-free running experience
- Multi-dimensional analysis views
- Map diary of runs and moods
- AI partner with personalized advice
- Visualized calorie consumption
- Data migration from popular wearables
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我们是一群爱跑步的设计师，纯粹、仪式感、真正懂你 —— 这才是我们想给你的跑步体验。 【你最关心的功能】 - 清爽干净的开跑：全程无打扰，自由记录你的奔跑 - 好看有趣的记录：日/周/月的多维分析视图，记录你所有跑步轨迹的总和 - 点亮心情的地图日记：跑过的城市与心情，所有回忆都收藏在一张地图里 - 贴身指导的AI伙伴：结合北京体育大学知识库，基于你的历史数据提供专业分析与个性化建议 - 可度量的跑步数据：卡路里消耗的趣味可视化，配速对标动物世界的实力 - 历史数据一键迁移：已支持苹果、佳明、华为、小米、高驰、华米和颂拓手表 【官方账号】 官网：https://www.sigma.run 小红书：@Sigma 【隐私政策】 隐私政策：https://www.sigma.run/privacy
轻练
This app provides personalized fitness and health management. It creates custom workout plans, tracks various health data, and offers professional analysis to help users build healthy habits. Features include 3D video guidance, AI coaching, and smart data recording for exercise and diet.
- Personalized workout plans
- 3D video exercise guidance
- Automatic health data tracking
- AI fitness and diet consultation
- Smart calorie and weight logging
- Customizable daily calorie intake plans
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轻练是你的个性化运动健康管理伙伴！ 它可以为你定制专属训练计划、自动追踪运动、消耗、体重、饮食等多种健康数据，并提供专业的数据分析，帮助你轻松养成运动健康习惯。 你是否遇到以下问题： - 想在家里运动，空有热情但无从下手？ - 在健身房不知道从哪个器械开始运动？ - 想控制饮食，不知道每次吃的有没有热量超标？ - 不健康的习惯：久坐，不活动，饮食不规律，但一直改不掉？ 轻练可以： - 3D视频跟练，科学指导动作细节，肌肉发力清晰可见，智能语音提示，帮助你更好的开始运动； - 根据你的运动目标、场地以及有无器械，基于你的基础数据，结合运动习惯、饮食偏好等多维度分析，为你定制最符合你需求的运动计划； - 智能识别运动数据和饮食数据，轻练可以快速为你快速记录运动数据、食物热量、体重数据，吃练结合，帮助你更好的完成目标管理。 在轻练，你还可以获得： 【你的专属计划】 量身定制的运动训练计划，设置21天的健身小目标，零基础也能轻松跟练。 【定制运动饮食方案】 根据身体数据与运动目标，自动生成每日热量摄入计划，超标及时提醒，帮你科学把控每一餐。 【AI健身饮食顾问】 火苗苗将化身你的随身 AI 顾问为你解答运动难题，制定运动计划，帮助你完成目标。 【丰富的跟练课程】 内容丰富多样！无论是初学者还是健身达人，都能找到适合自己的课程。 【智能的健康数据】 所有运动及饮食数据一站式记录，AI自动计算录入，全方位掌控。 轻练会员连续包月说明 - 订阅周期：1 个月 - 订阅价格：每月58元 - 付款：用户确认购买并付款后记入 iTunes 账户 - 取消续订：如需取消续订，请在当前订阅到期 24 小时以前，手动在 iTunes/Apple ID 设置管理中关闭自动续订功能 - 续订：苹果 iTunes 账户会在到期前 24 小时内扣款，扣款成功后订阅周期顺延 1 个月 - 隐私政策：https://mobile.wnlpromain.com:12443/ltraining-h5/agreement/privacy_policy.html - 用户协议：https://mobile.wnlpromain.com:12443/ltraining-h5/agreement/terms_of_service.html 轻练会员连续包年说明 - 订阅周期：1 年 - 订阅价格：每年158元 - 付款：用户确认购买并付款后记入 iTunes 账户 - 取消续订：如需取消续订，请在当前订阅到期 24 小时以前，手动在 iTunes/Apple ID 设置管理中关闭自动续订功能 - 续订：苹果 iTunes 账户会在到期前 24 小时内扣款，扣款成功后订阅周期顺延 1 年 - 隐私政策：https://mobile.wnlpromain.com:12443/ltraining-h5/agreement/privacy_policy.html - 用户协议：https://mobile.wnlpromain.com:12443/ltraining-h5/agreement/terms_of_service.html
Screenshots
Verdict
The clearest difference is rating: 轻练 at 5.0 against Sigma's 4.5. Sigma's advantage is in-app purchases (none vs 9) and review sentiment (87% vs 55%). On price, update cadence, ads and device support 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. 轻练 sells 9 in-app purchases, starting at $6.99 per month. Sigma asks for nothing beyond the download.
轻练 holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Sigma has 58 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 87% of Sigma's written reviews are positive against 55% of 轻练's, so the app with the better star average is not the one people write more warmly about.
Sigma ships an update weekly, 轻练 every 11 days. The most recent releases landed on November 11, 2026 and November 9, 2026 respectively.
| Parameter | Sigma | 轻练 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (58 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 86.9% of reviews — better | 55.2% of reviews |
| Number of ratings | 58 — better | 1 |
| Update frequency | Weekly — better | Every 11 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 233 MB | 136 MB |
| Age rating | 12+ | 4+ |
| Developer | Chaoshi Technology (Shanghai) Co., Ltd. | Chongqing Youzhimeng Tech |
Customer experience
Sigma
轻练
In-app purchases
Sigma
No in-app purchases
轻练
- 轻练-月会员订阅$6.991 Month
- 轻练-月会员订阅1$7.991 Month
- 轻练-年会员(优惠3)$12.991 Year
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- 轻练-年会员(优惠2)$19.991 Year
- 轻练-年会员订阅优惠1$19.991 Year
- 轻练-年会员订阅$22.991 Year
- 轻练-永久会员(优惠2)$22.99
- 轻练-永久会员(优惠1)$24.99
- 轻练-永久会员$29.99
