Comparison

Sigma vs PlusOne

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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 diary.

Highlights
  • Ad-free running experience
  • Daily, weekly, and monthly analysis
  • Map diary of runs and moods
  • AI-powered personalized coaching
  • Visualized calorie consumption
  • Data migration from popular wearables
Read full description

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

About

PlusOne

This app offers personalized AI-driven fitness plans and 24/7 digital coaching. It provides intelligent feedback, tracks progress with detailed statistics, and adapts training cycles for continuous improvement. Optimized algorithms cater to specific needs, including women's fitness.

Highlights
  • AI-generated personalized training plans
  • 24/7 digital coaching and guidance
  • Intelligent post-workout feedback and analysis
  • Automated training cycle progression
  • Women's fitness optimized algorithms
  • Training calendar and progress tracking
Features
Read full description

Gym or home — your plan is ready either way. PlusOne is a clean, quiet training app. Tell it your goal, where you train, and what equipment you have. It lays out what to do each day, how much to lift, how long to rest. The training screen works like a player: finish a set, tap once, done. No ads. No feed. Not many features — but the ones you'll actually use. TRAINS LIKE A PLAYER Your exercises are queued up like a playlist. Finish a set, tap once, and it moves to the next one and starts the rest timer on its own. Nothing to think about while you train. REAL DEMOS, NOT STICK FIGURES Every exercise has a photo of a real person, with the working muscles highlighted on the body. GYM AND HOME, SAVED SEPARATELY A full gym, one pair of dumbbells at home, a hotel room with nothing — save a setup for each. Your plan only includes what you can actually do. Machine taken? Swap it in one tap. TRAIN WHEN YOU FEEL LIKE IT The plan is ready, but it doesn't own you. Want a different muscle group today? Short on time? Feeling good and want to add one more? All fine. SEE WHAT YOU'VE DONE A six-axis strength profile shows which areas are falling behind. A calendar marks every session you've logged. TRAIN FROM YOUR WRIST See your exercises, log your sets, and check your heart rate on Apple Watch. No phone needed. BUILT FOR WOMEN TOO Strength progression and recovery aren't one-size-fits-all. The algorithm adjusts exercise selection, load progression, and rest for women's physiology — not by making it easier, but by making it right. WORKS AROUND YOUR INJURIES Bad knee, tweaked back, cranky shoulder — tell it, and it won't program those movements. It finds you a substitute instead. Not removed, replaced. JIAJIA AND YIYI Two AI coaches stay with you the whole way. After each session they sum up how it went, and they build your next training cycle too. PlusOne. Always one more. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Sigma3 screens
PlusOne4 screens

Verdict

The call

The clearest difference is rating: PlusOne at 5.0 against Sigma's 4.4. Sigma's advantage is ratings volume (54 vs 3) and iOS requirement (14.0 vs 16.4). On price, review sentiment, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

PlusOne holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Sigma has 54 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 87% of Sigma's written reviews are positive against 80% of PlusOne's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Sigma ships an update weekly, PlusOne every 5 days. The most recent releases landed on October 20, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
Sigma versus PlusOne: the parameters behind the verdict, then further details
ParameterSigmaPlusOne
PriceFreeFree
Rating4.4 (54 ratings)5.0 (3 ratings) — better
Positive reviews86.8% of reviews — better80.0% of reviews
Number of ratings54 — better3
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS14.0 — better16.4
Further details — not scored
Size231 MB165 MB
Age rating12+4+
DeveloperChaoshi Technology (Shanghai) Co., Ltd.伟 刘

Customer experience

Sigma

All ratings54 ratings
Positive85.2%
Neutral1.9%
Negative13.0%
Written reviews106 reviews
Positive86.8%
Neutral2.8%
Negative10.4%

PlusOne

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

None

Sigma

No in-app purchases

None

PlusOne

No in-app purchases

Questions

Is Sigma free?
Sigma is free to download, with no in-app purchases.
Is PlusOne free?
PlusOne is free to download, with no in-app purchases.
Which has better reviews, Sigma or PlusOne?
PlusOne is rated higher. Sigma averages 4.4 out of 5 from 54 ratings, while PlusOne averages 5.0 from 3 ratings.
Do Sigma or PlusOne have ads?
Neither Sigma nor PlusOne shows ads.
Which is updated more often, Sigma or PlusOne?
Sigma ships an update weekly, and PlusOne every 5 days. Most recently, Sigma was updated on October 20, 2026 and PlusOne on October 14, 2026.

Other comparisons