Comparison

Pebbles vs Race Pace Ai

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

Head to head
About

Pebbles

Visualize your progress towards fitness and personal goals with a dynamic widget. It syncs with Apple Health to fill virtual pebbles, showing your standing against set targets without pressure.

Highlights
  • Visualize goals as filling pebbles
  • Syncs with Apple Health
  • Home and Lock Screen widgets
  • Pace line for progress tracking
  • Customizable goal lengths and types
  • Private by design, no account needed
Features
Read full description

Set a goal. Watch it fill up. Pebbles turns any sports goal into a pebble you fill. 1,000 km of running in a year. 10,000 steps a day. 12 workouts a month. 500 km up to race day. Apple Health fills your pebble on its own, and the widget on your Home Screen shows where you stand. THE PACE LINE A dashed line shows where you should be today. Above it, you're ahead. Under it, Pebbles calmly shows where you're heading. No red, no streaks, no guilt. ANY GOAL, ANY LENGTH • A year, a month, or your own dates, like a marathon block or a summer • Running, walking + running distance, steps a day, workouts, cycling, swimming, hiking and exercise minutes, straight from Apple Health • Goals that start again every year or every month • Count anything else with +1: books, trips, concerts THE WIDGET IS THE APP • Home Screen widgets with one, two or four pebbles • Lock Screen widgets • StandBy Glance at your phone, see the number, get on with your day. NUMBERS THAT HELP • What fills it from here: "16.5 km a week fills it" • This week, every month, your best day and your longest run • A forecast whenever you're under the line • Compare with last time • A look back when a pebble ends, to save and share PRIVATE BY DESIGN Pebbles only reads Apple Health and never writes to it. No account, no server. Nothing you track leaves your iPhone. TWO LITTLE NOTES A Sunday check-in and a note when a pebble fills. That's all. FREE AND PRO Free: one Apple Health pebble of any length, the small widget and the Lock Screen widgets. Pebbles Pro is a single payment, no subscription: unlimited pebbles, counters, repeating pebbles, every widget size and style, compare with last time, and look-back cards to share. Health Pulse is now Pebbles.

About

Race Pace Ai

This app provides real-time finish-time predictions for distance runners during races. It helps coaches and athletes by offering lap-by-lap pacing strategies and automatically logging performance data for improved accuracy and insights.

Highlights
  • Real-time finish-time predictions
  • Lap-by-lap pacing strategies
  • Automatic performance logging
  • One-tap export of race data
  • Predictive stopwatch functionality
Features
Read full description

Smarter Coaching Starts with Race Pace AI Race Pace AI is a powerful tool built for coaches and parents of distance runners. It goes beyond simple split tracking - delivering real-time finish-time predictions at every lap, so your athletes can lock into a goal and know exactly where they stand. Key Features: Predictive Stopwatch Calling out split times can help, but after several laps, athletes often lose track of how they’re pacing. Instead of yelling out abstract numbers, give them projected finish times with every lap — helping runners know exactly where they stand and what adjustments they need to make. Split Calculator Set goal times and generate lap-by-lap pacing strategies before race day. Performance Logging Race data is automatically saved to each athlete’s profile, improving prediction accuracy over time and giving coaches deep insights into performance trends. One-Tap Export Easily share race logs, splits, and results via text, email, or messaging apps. Built for Coaches. Trusted by Athletes. Race Pace AI helps you turn raw splits into smart strategy. Whether you coach high school athletes or elite distance runners, Race Pace AI gives you the tools to coach with clarity, precision, and confidence.

Screenshots

Pebbles4 screens
Race Pace Ai4 screens

Verdict

The call

The clearest difference is update cadence: Race Pace Ai at weekly against Pebbles's every 8 months. Race Pace Ai also leads on monetization model (free vs freemium) and ratings volume (6 vs 1). On price, rating, ads and in-app purchases 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. Pebbles sells 1 one-off in-app purchase and Race Pace Ai sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Pebbles against 5.0 for Race Pace Ai. That said, the two scores are not equally well evidenced: Race Pace Ai has 6 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Pebbles ships an update every 8 months, Race Pace Ai weekly. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Pebbles versus Race Pace Ai: the parameters behind the verdict, then further details
ParameterPebblesRace Pace Ai
PriceFreeFree
Rating5.0 (1 ratings)5.0 (6 ratings)
Positive reviews—100.0% of reviews
Number of ratings16 — better
Update frequencyEvery 8 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size12 MB49 MB
Age rating4+4+
DeveloperLeon GrimmeisenRace Pace AI LLC

Customer experience

Pebbles

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Race Pace Ai

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Pebbles

One-time1
  • Pebbles Pro$3.99
1 purchases

Race Pace Ai

One-time1
  • Unlock Unlimited Usage$14.99

Questions

Is Pebbles free?
Pebbles is free to download, with in-app purchases available.
Is Race Pace Ai free?
Race Pace Ai is free to download, with in-app purchases available.
Which has better reviews, Pebbles or Race Pace Ai?
Pebbles and Race Pace Ai are both rated 5.0 out of 5 on the App Store, from 1 and 6 ratings respectively.
Do Pebbles or Race Pace Ai have ads?
Neither Pebbles nor Race Pace Ai shows ads.
Which is updated more often, Pebbles or Race Pace Ai?
Pebbles ships an update every 8 months, and Race Pace Ai weekly. Most recently, Pebbles was updated on November 8, 2026 and Race Pace Ai on October 30, 2026.

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