Comparison

JstMacros vs Bike Dynamics

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

Head to head
About

JstMacros

Features
Read full description

JstMacros puts macro tracking where it belongs, on your home screen. No logging meals. No scanning barcodes. No opening an app 12 times a day. Just a widget with three buttons: +1, +5, +10 grams. Tap and move on. HOW IT WORKS • Set your daily macro goals • Add the JstMacros widget to your home screen • Tap +1, +5, or +10 to log grams throughout the day • Watch the progress ring fill from blue to green as you approach your goal • Hit your number. Done. WHAT YOU SEE ON THE WIDGET • Your current total in large, bold text • A progress ring that shifts from blue → yellow → green at 100% • Grams remaining or "GOAL HIT" when you're done • Undo button to remove the last entry if you tap too many WHAT THIS APP IS NOT • Not a calorie counter • Not a meal logger • Not a barcode scanner • Not a social network • Not a subscription JstMacros is a single-purpose tool for people who know what they eat and just need to keep a running count. One purchase. No account. No ads. No tracking. Your data stays on your phone. Built for iOS 17+ with interactive WidgetKit.

About

Bike Dynamics

This app transforms your Apple Watch into a mountain biking sensor, analyzing motion and GPS data to provide detailed insights into your rides. Track jumps, corners, and speed, then replay and compare your runs on a synchronized map and timeline. It also offers an AI coach to discuss your performance and technique.

Highlights
  • Ride analysis with map and timeline
  • Jump, corner, and control detection
  • Airtime, jump distance, and speed tracking
  • Repeated trail section recognition
  • Personal performance archive
  • AI coach for ride reflection
  • Strava export
Features
Read full description

Bike Dynamics turns your Apple Watch into a sensor for mountain biking. Mount it securely to your handlebar, start a ride and turn raw motion, GPS and bike data into a detailed picture of what happened on the trail. Track jumps, corners, speed changes, control moments and repeated trail sections. Replay your ride on a synchronized map and timeline, compare runs and build a personal performance archive over time. RIDE ANALYSIS • Replay your full ride with map, speed and event timeline • Detect jumps, corners and control moments • Track airtime, jump distance and takeoff speed • Review speed changes and slowdown zones • See ride summaries and standout moments TRAIL INTELLIGENCE Bike Dynamics can recognize repeated trail sections across your rides. Compare matched runs, see your fastest time and understand how consistently the same features were detected. RECORDS Build a personal archive across your rides, including: • Jump distance • Airtime • Takeoff speed • Drop and trajectory metrics • Backwheel and control metrics • Ride and trail performance APPLE WATCH RECORDING For the highest recording quality, mount your Apple Watch rigidly to the handlebar. Bike Dynamics uses high-frequency motion data together with GPS and, when available, compatible bike telemetry. Supported setups include: • Apple Watch + bike telemetry • Apple Watch only • iPhone-only recording with reduced precision Compatible bike data depends on the hardware and available Bluetooth services. AI COACH Discuss a ride directly with Coach. Bike Dynamics can use your ride data as context to help you reflect on technique, confidence, consistency and possible next steps. Coach uses supported Apple Intelligence models on compatible devices. Your rides remain the basis of the conversation. HONEST DATA Bike Dynamics distinguishes between measured, calculated and estimated values. Metrics are only shown when the available sensor data supports them. EXPORT You can directly export your rides to strava. Only two clicks required. Bike Dynamics is built for riders who want more than a GPS track, from downhill and enduro sessions to jump lines, repeated trails and everyday progression.

Screenshots

JstMacros4 screens
Bike Dynamics4 screens

Verdict

The call

The clearest difference is in-app purchases: JstMacros at none against Bike Dynamics's 2. JstMacros also leads on iOS requirement (17.0 vs 26.5). Bike Dynamics's advantage is update cadence (every 3 days vs weekly). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Bike Dynamics sells 2 one-off in-app purchases. JstMacros asks for nothing beyond the download.

UpkeepUpdate frequency

JstMacros ships an update weekly, Bike Dynamics every 3 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 6 level
JstMacros versus Bike Dynamics: the parameters behind the verdict, then further details
ParameterJstMacrosBike Dynamics
PriceFreeFree
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS17.0 — better26.5
Further details — not scored
Size3 MB24 MB
Age rating4+4+
DeveloperDallin RimaFLORENTIN TOBIAS ERB

In-app purchases

None

JstMacros

No in-app purchases

2 purchases

Bike Dynamics

One-time2
  • Bike Dynamics TrialFree
  • Bike Dynamics Lifetime$5.99

Questions

Is JstMacros free?
JstMacros is free to download, with no in-app purchases.
Is Bike Dynamics free?
Bike Dynamics is free to download, with in-app purchases available.
Do JstMacros or Bike Dynamics have ads?
Neither JstMacros nor Bike Dynamics shows ads.
Which is updated more often, JstMacros or Bike Dynamics?
JstMacros ships an update weekly, and Bike Dynamics every 3 days. Most recently, JstMacros was updated on October 25, 2026 and Bike Dynamics on October 29, 2026.

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