Comparison

記石 vs ChironMotion IMU

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

Head to head
About

記石

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「記石」專為熱愛抱石的岩友們量身打造,提供全方位的訓練記錄功能。不論是想記錄每次的完攀路線、詳細的攀登資訊、嘗試次數,或是個人的攀登心得,透過直觀的操作介面,「記石」都能幫您一一捕捉。 不僅如此,「記石」的動態岩牆風格背景,讓您的記錄頁面也充滿攀岩的情境感!更增添使用時的趣味性。 此外,「記石」還支持每日運動成果和個人累積數據的一鍵分享,讓您能輕鬆與朋友及攀岩社群分享 #今日份的努力與攀爬經驗! [主要功能] - 攀爬路線記錄:詳細記錄每一條攀爬路線的資訊,包括嘗試次數,及個人心得。 - 每日成果分享:將攀岩紀錄一鍵分享至社交平台,和朋友們分享樂趣。 - 個人訓練統計:提供個人抱石數據的詳細統計分析,幫助自己持續改進技巧。 - 自動備份同步:所有資料自動同步至雲端,確保寶貴記錄安全且不遺失。 [開啟進階功能] - 無限制路線記錄:解鎖無限制記錄功能,讓你可以隨心所欲記錄每一次的攀登。 - 記錄未完成路線:即使路線未完攀,也可加入您的訓練記錄中。 - 進階功能與個人統計持續更新:不斷更新的進階功能和更詳盡的統計數據,和你的抱石技巧一起進步。 問題 | 建議 | 回報 | 許願 | hi@laboh3.cc Terms of Service | https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ChironMotion IMU

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ChironMotion is a professional-grade motion analysis tool designed for coaches, athletes, and sports scientists. Leveraging advanced iPhone sensors and a proprietary physics engine, it delivers lab-quality jump metrics simply by securing your phone to your waist. Key Features: Comprehensive Test Protocols: Countermovement Jump (CMJ): Measure lower-limb power and monitor neuromuscular fatigue. Squat Jump (SJ): Assess pure concentric explosive strength. Drop Jump (DJ): Analyze Reactive Strength Index (RSI) and plyometric performance. Single Leg Stance (SLS): Evaluate bilateral symmetry and dynamic balance stability. Precise Biomechanical Metrics: Instantly obtain Jump Height, Flight Time, RSI, Peak Power, Rate of Force Development (RFD), and Landing Impact. High-frequency 200Hz sampling captures movement details invisible to the naked eye. AI-Powered Insights: Get personalized training advice from three distinct AI personas: Scientific Expert, Enthusiastic Coach, and Toxic Coach. Go beyond numbers - understand what your data actually means for your training. Professional Reporting & Export: PDF Analysis Reports: Generate detailed reports with waveforms and data breakdowns in one tap. CSV Data Export: Access raw time-series data for further scientific research. Test Comparison: Overlay two test results to visually track progress or analyze asymmetries. Built For: Strength & Conditioning Coaches Physiotherapists Athletic Trainers Professional & Amateur Athletes Sports Science Researchers Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://chironmotion.vercel.app/#legal Download ChironMotion today and let data drive your breakthrough.

Screenshots

記石4 screens
ChironMotion IMU4 screens

Verdict

The call

記石 and ChironMotion IMU are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. 記石 sells 2 in-app purchases, starting at $0.99 per month and ChironMotion IMU sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 10, 2026 and September 12, 2026 respectively.

ScorecardNo meaningful differences
記石 versus ChironMotion IMU: the parameters behind the verdict, then further details
Parameter記石ChironMotion IMU
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size4 MB25 MB
Age rating4+4+
DeveloperHAO Yuan Cheng ChengYi-Fu Chen

In-app purchases

2 purchases

記石

Subscriptions1
  • 月票14 Days trial$0.991 Month
One-time1
  • 套票 - 100條路線紀錄$0.99
2 purchases

ChironMotion IMU

Subscriptions2
  • Pro Monthly Plan$3.991 Month
  • Pro Yearly Plan$39.991 Year

Questions

Is 記石 free?
記石 is free to download, with in-app purchases available.
Is ChironMotion IMU free?
ChironMotion IMU is free to download, with in-app purchases available.
Do 記石 or ChironMotion IMU have ads?
Neither 記石 nor ChironMotion IMU shows ads.
Which is updated more often, 記石 or ChironMotion IMU?
記石 ships an update every 2 months, and ChironMotion IMU every 2 months. Most recently, 記石 was updated on September 10, 2026 and ChironMotion IMU on September 12, 2026.

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