Personal Bests vs Miriam
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Personal Bests
This app analyzes your workout history from Apple Health to find your fastest segments of any distance. It ranks these personal bests across all your activities and timeframes, offering detailed insights and flexible tracking for athletes focused on performance.
- Finds fastest segments of any distance
- Works across running, cycling, swimming, rowing
- Segments can be anywhere within a workout
- Customizable segment lengths
- Rankings across all timeframes
- Detailed segment analysis and export
- Syncs via iCloud
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Personal Bests finds the fastest efforts hidden inside your workouts and awards you medals for them, with nobody to compete against but yourself. Your fastest 5K might be kilometers 7 to 12 of a half marathon. Your best mile might be buried in the middle of a long run. Personal Bests looks inside every workout in Apple Health, finds your fastest segment for every distance you care about, and ranks it against your whole history. Just You vs. You Personal Bests isn't a social network. There's no feed, no followers, no leaderboard of strangers and no challenges telling you to go faster. You earn gold, silver and bronze for real work, and the only person you're up against is you. Your Game, Your Rules • Choose the distances that count: 400 m, 5K, 10 miles, a marathon or anything else, for every sport. • Choose what you're compared against: all-time, the past year, or any window of days, weeks, months or years. • Coming back from an injury or a break? Rank against the last three months instead of your all-time best. • Keep the medals you've earned, even after you beat them, or let them move on. • Rank indoor and outdoor workouts separately, so a treadmill run isn't compared with a trail run. Find Your Fastest Efforts • Segments can start and end anywhere in a workout, not just at the start. • Running, cycling, swimming, rowing, paddling, walking, cross-country skiing and more. • Your whole Apple Health history, from Apple Watch, iPhone and other apps. • New workouts are analyzed automatically, even in the background. See Where You Were Fastest • On iPhone, your fastest segments are drawn on the route, each in its own color. • Leaderboards for your fastest times, longest workouts and farthest distances. • A short written summary of any workout, using Apple Intelligence where it's available. Keep Bad Data Off the Podium • Forgot to stop your watch on the train? Segments that are too fast to be true for you are flagged, judged against your own history. • Crop a workout to the part you actually did, or remove GPS spikes with one tap. • Your Health data is never changed. Celebrate Your Progress • Get a notification when a new workout earns a medal. • "While you were away": a recap of your new medals and training when you come back to the app. • Rankings and Recent Bests widgets for the Home Screen and Lock Screen. On iPhone, iPad & Mac • Your iPhone reads Apple Health and does the analysis. • iPad and Mac show your workouts, rankings and medals, with the list and details side by side. Private by Design • No account, no ads, no tracking. • Analysis runs on your device. • Syncs only through your own iCloud, and you can switch that off. • Read-only access to Apple Health. Make It Yours • Three app icons and three themes. Personal Bests is for anyone who loves earning medals but doesn't need to race strangers for them: runners tracking PRs from 400 m to the marathon, cyclists comparing their best 40K across seasons, swimmers, rowers, and everyone who has ever wondered, "When was I actually at my fastest?"
Miriam
This running app automatically organizes your workout history from Apple Watch and Fitness. Track detailed metrics, set goals, and analyze performance trends. It offers personalized insights and shareable summaries of your runs.
- Automatic Apple Health data import
- Detailed run metric tracking
- Goal setting and streak monitoring
- Route recognition and course analysis
- Performance comparison and bests
- Shareable run summaries
- Home Screen widgets
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Keep running with Apple Watch and Apple Fitness. Miriam organizes the rest. When you open Miriam for the first time, running history from Apple Watch and Apple Fitness is organized automatically. Total distance, time, belt grade, personal records, and mileage achievements appear on one screen. • Every angle: Track distance, pace, heart rate, elevation, cadence, and more across daily, weekly, monthly, yearly, all-time, course, and standard-distance views, from 1 mile to 100 miles. • Goals and streaks: Create goals such as weekly distance, monthly run count, or 10K finishes. Miriam records whether each period was completed and counts streaks. • Frequent routes become courses: Choose one saved run and register it as a course. Similar past routes, and future runs with similar GPS paths, are automatically matched to the same course. See pace, heart-rate, and distance trends for familiar roads in one place. • Find your best by condition: Filter sessions by standard distance or course, then sort by distance, time, pace, average heart rate, cadence, power, active calories, elevation gain, ground contact time, and more. Miriam also finds standard-distance bests inside longer runs, such as the fastest 10K within a 12 km run. • Compare with past records: Pace, heart rate, and elevation charts can show past averages for the same course and your own average for the same standard distance. • Records and belt grades: View personal records, goal streaks, mileage achievements, and yearly medals in one place. Total distance is represented as a belt grade from white to blue, purple, brown, black, and red. • Share cards: Session cards turn a single run into a map or photo summary, while period cards summarize your day, week, month, year, or all-time records. Choose Satellite or Explore map styles, and include route heatmaps in period cards. • Home Screen widgets: Add goal progress and recent runs to Home Screen widgets to see them without opening the app. Add as many goal widgets as you like, one per goal, while the Activity widgets let you pick which period to show — today, this week, this month, this year, or all time. Miriam is free to use. Miriam Pro unlocks trend charts for every metric, share cards and data export, and unlimited goals and courses, with a one-month free trial. Miriam never sends your health or workout data to third-party servers. Everything is read from HealthKit and processed on your device, with no analytics SDKs, no ad SDKs, and no tracking. Your goals and courses sync only to your own iCloud. Course names are stored, never the routes you ran. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Personal Bests at none against Miriam's 3. Personal Bests also leads on device support (3 vs 1). Miriam's advantage is update cadence (every 9 days vs every 4 months). On price, review sentiment, ads and iOS requirement 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. Miriam sells 3 in-app purchases, starting at $0.99 per month. Personal Bests asks for nothing beyond the download.
Personal Bests ships an update every 4 months, Miriam every 9 days. The most recent releases landed on October 30, 2026 and November 1, 2026 respectively.
| Parameter | Personal Bests | Miriam |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 25 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Markus Kettner | Hyeonrae Jo |
Customer experience
Personal Bests
Miriam
In-app purchases
Personal Bests
No in-app purchases
Miriam
- Monthly Access1 Month trial$0.991 Month
- Yearly Access1 Month trial$7.991 Year
- Lifetime Access$19.99









