aRacerMobile vs MotionTrace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
aRacerMobile
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功能 1. 引擎參數即時顯示 包含RPM, Speed, AFR, TPS ...等18項參數 可設定參數警示 2. 參數紀錄功能 可記錄最長2小時 檔案可供電腦版i-View分析 3. 曲線圖分析 可分析錄製之log檔 4. 全域噴油調校(即將上市) 5. 全域點火調校(即將上市) 6. 需搭配aRacer bLink使用
MotionTrace
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Dynamic Trajectory — Every Ride Leaves a Trace On the road, you feel more than just the wind—you feel the physical feedback of every acceleration, bump, and lean. These experiences shouldn't just exist in the moment; they deserve to be recorded, reviewed, and analyzed. Dynamic Trajectory is a motion-sensing recording App crafted specifically for power-driven vehicles. Combining vibration sensors, speed tracking, and GPS positioning, it transforms your phone into a "road-feel black box," faithfully recording every vibration and acceleration burst mapped directly to your route. Whether you are an off-road enthusiast, motorcycle rider, cyclist, vehicle tester, or simply curious about your vehicle's suspension performance, Dynamic Trajectory reveals the sensory data invisible to the naked eye. Key Highlights: Inclinometer Detection: Real-time device lean-angle sensing lets you master every pitch and roll instantly. GPS Integration: Syncs all sensory data to the map for effortless section-by-section comparison. Vibration Analysis: Quantifies road harshness, surface quality, and off-road terrain difficulty at a glance. Auto Data Saving: Automatically generates comprehensive routes and analytical charts after every ride. Visualized Playback: Replay, analyze, and compare mapped routes with rich visual feedback. Use Cases: Off-Road / Mountain Riding: Track real-time vibration changes to analyze control limits. Long-Distance Cycling: Log speed and vibration distribution to identify smooth vs. challenging road sections. Daily Commute Road Tracking: Compare routes to find the smoothest path and avoid bumpy spots. Map Your Road Feel Turn every journey from mere memories into visible, comparable, and shareable data stories.
Screenshots
Verdict
The clearest difference is update cadence: MotionTrace at weekly against aRacerMobile's every 3 months. aRacerMobile's advantage is iOS requirement (8.0 vs 16). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
aRacerMobile ships an update every 3 months, MotionTrace weekly. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.
| Parameter | aRacerMobile | MotionTrace |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 — better | 16 |
| Further details — not scored | ||
| Size | 28 MB | 48 MB |
| Age rating | 4+ | 12+ |
| Developer | ARACER SPEEDTEK INC. | YuHsien Chen |
In-app purchases
aRacerMobile
No in-app purchases
MotionTrace
No in-app purchases
Questions
Is aRacerMobile free?
Is MotionTrace free?
Do aRacerMobile or MotionTrace have ads?
Which is updated more often, aRacerMobile or MotionTrace?
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