Tread Tracker Miles vs PacerX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tread Tracker Miles
Automatically track the mileage of your running and walking shoes using step distance data from Apple Health. Avoid pain and injury by knowing exactly when to replace your footwear.
- Automatic mileage tracking from step distance
- Manage multiple shoes with start dates
- Visual mileage progress bar
- iCloud sync for data backup
- Private and secure Health data
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Know exactly when it’s time to replace your shoes. TreadTracker automatically tracks how many miles you’ve walked or run in each pair of shoes using step distance data from Apple Health—no manual entry needed. Whether you’re a casual walker or serious runner, worn-out shoes can lead to pain and injury. TreadTracker makes it easy to stay on top of your shoe mileage so you can switch out your footwear before problems start. Features: • Accurate mileage tracking using step distance, not just workouts • Add and manage multiple shoes with start dates • Visual mileage progress bar so you know when shoes are nearing their limit • iCloud sync support keeps your shoe data backed up • No shoe type required — just mileage-based simplicity • Private and secure — your Health data stays on your device Why TreadTracker? You shouldn’t have to guess when it’s time for new shoes. After experiencing foot and joint pain from wearing shoes past 500 miles, we built TreadTracker to make sure you don’t have to. With HealthKit integration, your total distance is automatically updated in the background—so you can focus on moving, not logging. Built for simplicity. Powered by Apple Health.
PacerX
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How fast could you race today? PacerX turns the runs already in Apple Health into personalized 5K, 10K, half marathon, and marathon predictions—then shows you the training evidence behind every estimate. Built for runners who want more than a workout list or a one-result pace calculator, PacerX looks across your recent training, best efforts, trends, pace, heart rate, effort, weather, elevation, and consistency to help you understand where your fitness is heading. SMARTER RACE PREDICTIONS See realistic estimates for 5K, 10K, Half Marathon, and Marathon based on your recent training. Open any prediction to understand the runs and signals that influenced it. PREDICTION HISTORY Track how your projected race fitness changes over time. See when your training is moving the needle—and when your estimates are holding steady. DEEP ANALYSIS On supported devices, Deep Analysis uses Apple Intelligence to give you a deeper explanation of what your recent training says about race readiness. PacerX uses on-device processing where appropriate and can use Apple Private Cloud Compute for supported Deep Analysis requests. COMPARE YOUR RUNS Open any run and compare it with a relevant past workout—or choose one yourself. Review pace and heart-rate charts, side-by-side metrics, and context such as route, distance, effort, weather, and elevation. FIND YOUR BEST RUNS Discover validated personal bests and standout efforts across your running history, including 1K, mile, 5K, 10K, half marathon, marathon, longest run, most climbing, most consistent splits, and more. SEE THE FULL PICTURE Review weekly mileage, monthly and yearly trends, pace, heart rate, cadence, elevation, perceived effort, shoes, running surface, weather, and other context from your training history. PRIVATE BY DESIGN PacerX reads your running data from Apple Health. No account is required, there are no ads, and your running history isn't used to build advertising profiles. Optional Deep Analysis may securely process derived training insights using Apple Private Cloud Compute, where request data is not stored. PacerX doesn't replace your coach or training plan. It gives you a clearer picture of what your training says—so your next conversation, workout, or race decision starts with better context. Understand your training. See what you're ready for. Keep moving forward.
Screenshots
Verdict
The clearest difference is update cadence: PacerX at every 6 weeks against Tread Tracker Miles's every 7 months. 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. Tread Tracker Miles sells 1 one-off in-app purchase and PacerX sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Tread Tracker Miles ships an update every 7 months, PacerX every 6 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | Tread Tracker Miles | PacerX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 7 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch — better | iPhone |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 1 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Jason Payne | Nathan Stryker |
In-app purchases
Tread Tracker Miles
- Buy Me a Coffee$0.99
PacerX
- Monthly Subscription$4.991 Month
- PacerX Annual Subscription$29.991 Year
- PacerX Lifetime$79.99









