# PacerX: Running Analysis — Compare Runs & Personal Bests

> Compare Runs & Personal Bests (iPhone/iPad app by Nathan Stryker.)

- Source: https://appshunter.io/ios/app/pacerx-running-analysis/id6772818477 (this page in markdown: same URL + `.md`)
- Developer: [Nathan Stryker](https://appshunter.io/developer/383950754)
- Category: Health & Fitness, Sports
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 11 MB
- Released: 2026-06-06
- Data updated: 2026-07-27
- User reviews in markdown: https://appshunter.io/ios/app/pacerx-running-analysis/id6772818477/reviews.md

## What is PacerX?

PacerX turns the runs already in Apple Health into useful comparisons, validated personal bests, and long-term performance trends.
Compare similar workouts side by side, understand changes in pace, heart rate, effort, weather, and elevation, and see the records that genuinely hold up—without accounts, ads, or uploading your run history.
Built for runners who want more than a workout list, PacerX helps you understand what changed, what stands out, and how each run fits into the larger picture.
COMPARE YOUR RUNS
Open any run and compare it with a relevant past workout—or choose any run yourself. PacerX can suggest matches based on route, distance, and effort and explain why each run was selected.
Review overlaid pace and heart-rate charts, side-by-side metrics, and clear observations drawn directly from your run data.
FIND YOUR BEST RUNS
Discover standout performances across your complete running history, including your fastest 1K, mile, 5K, 10K, half marathon, and marathon.
PacerX can also surface your longest run, most climbing, most consistent splits, and steadiest heart rate. Results are validated to help prevent GPS spikes, tracking gaps, paused stretches, and implausible pace data from creating false personal bests.
SEE THE FULL PICTURE
Review the training signals that matter, including:
• Run history and workout summaries
• Weekly mileage and monthly trends
• Yearly progress and all-time distance
• Pace, heart rate, cadence, and elevation
• Perceived effort and workout type
• Shoes, running surface, and other context
• Weather and environmental conditions
Numbers alone rarely tell the full story. A fast run after a stressful week, a high-heart-rate easy day, a long run on tired legs, or a workout that felt harder than expected all add important context.
PacerX helps turn that context into a clearer picture of how your running is changing over time.
BUILT TO SUPPORT BETTER CONVERSATIONS
PacerX does not replace your coach, trainer, or training plan. It provides a detailed, organized training history that can help you and your coach spot overlooked patterns and have more informed conversations about your running.
PRIVATE BY DESIGN
PacerX is designed to provide useful running insights without accounts, advertising, social pressure, or unnecessary clutter. You remain in control of your data and how optional analytics are used.
Review intelligently. Understand your running. Keep moving forward.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| PacerX Annual Subscription | $29.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| PacerX Lifetime | $79.99 | one-time |



## Version history (last 2 releases)

### 1.1 — 2026-07-20

COMPARE RUNS

Open any run and tap Compare Run to see it alongside a similar workout—or choose any run yourself. Pacer-X recommends relevant matches based on route, distance, and effort, explains why each was selected, and shows overlaid pace and heart rate charts, side-by-side metrics, and clear observations grounded in your data.

BEST RUNS

A new section in Trends surfaces your standout performances, including your fastest 1K, mile, 5K, 10K, half marathon, and marathon, along with your longest run, most climbing, most consistent splits, and steadiest heart rate.

See your top results, compare each record with your previous best, and understand exactly how it was calculated. Runs that hold a record receive a subtle Personal Best badge.

TRUSTED RECORDS

Pacer-X validates results before awarding a personal best, so GPS spikes, tracking gaps, paused stretches, and implausible pace data do not create false records.

Version 1.1 also includes performance and stability improvements throughout the app.

### 1.0 — 2026-06-06

No release notes.

## More apps by Nathan Stryker

- [Goalie Scout](https://appshunter.io/ios/app/goalie-scout/id504940749)
- [Dark Skies: Astrophotography](https://appshunter.io/ios/app/dark-skies-astrophotography/id843351673)
- [Five Hole: Hockey Goalie Stats](https://appshunter.io/ios/app/five-hole-hockey-goalie-stats/id6762281961)

All apps by Nathan Stryker: https://appshunter.io/developer/383950754

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-27.*