Comparison

Ksteps vs RHRSpark

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

Head to head
About

Ksteps

Features
Read full description

Ksteps is an app that helps you quickly check your step count directly from your Apple Watch face. With complications, you can instantly view today’s steps on your watch face, and the app supports a variety of complication styles. Add it easily without complicated setup and keep track of your daily activity at a glance. Key Features • Apple Watch complication support • Quickly check your step count from the watch face • Various complication styles available • Simple setup and intuitive usage How to Use Install Ksteps on your Apple Watch. Press and hold the watch face to open the edit screen. Select Ksteps when adding a complication.

About

RHRSpark

Visualize your resting heart rate directly on your Apple Watch face with customizable complications. Choose from various styles and time windows to see your heart rate trends at a glance. Understand how your data is calculated with full transparency.

Highlights
  • Resting heart rate on watch face
  • Sparkline, gauge, or corner complications
  • 10 watch face complications
  • 4 time window options (8H, 24H, 7D, 30D)
  • Two distinct data sources
  • Full calculation transparency
Features
Read full description

RHRSpark puts resting heart rate on your Apple Watch face as a sparkline, gauge, or corner complication. WHAT YOU GET • Three 24-hour complications you can use for free • 10 complications across 8-hour, 24-hour, 7-day, and 30-day windows with Pro • Short-term sedentary heart-rate samples and Apple's daily resting heart rate • Clear calculation notes for every complication TWO DATA SOURCES, SHOWN CLEARLY The 8-hour and 24-hour views use heart-rate samples that HealthKit labels as sedentary. The 7-day and 30-day views use Apple's daily resting heart-rate values. Gaps stay visible when there is no qualifying sample. BUILT FOR THE WATCH FACE Choose rectangular, circular, or corner complications. Each one keeps the source and time window clear so you know what you are viewing. ONE-TIME PRO UNLOCK Download free and use three 24-hour complications. Unlock all 10 complications for $0.99 once. No subscription, account, ads, or telemetry. PAIR IT WITH HRVSpark HRVSpark gives the same direct view of raw SDNN heart rate variability across useful time windows. HealthKit data stays on your devices and moves only between your paired iPhone and Apple Watch through Apple frameworks. RHRSpark may request a small configuration file from filamentlabs.io to display current product messages. The request contains no HealthKit data. RHRSpark is for informational purposes only. It does not provide medical advice or diagnose, treat, cure, or prevent any medical condition.

Screenshots

Ksteps4 screens
RHRSpark3 screens

Verdict

The call

The clearest difference is in-app purchases: Ksteps at none against RHRSpark's 2. RHRSpark's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, 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. RHRSpark sells 2 one-off in-app purchases. Ksteps asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 7 level
Ksteps versus RHRSpark: the parameters behind the verdict, then further details
ParameterKstepsRHRSpark
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 5 daysEvery 5 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, Apple WatchiPhone, iPad, Apple Watch — better
Requires iOS26.017.0 — better
Further details — not scored
Size10 MB3 MB
Age rating4+4+
DeveloperKiyeong JeongJoel Farthing

In-app purchases

None

Ksteps

No in-app purchases

2 purchases

RHRSpark

One-time2
  • RHRSpark Pro$0.99
  • Tip Jar$4.99

Questions

Is Ksteps free?
Ksteps is free to download, with no in-app purchases.
Is RHRSpark free?
RHRSpark is free to download, with in-app purchases available.
Do Ksteps or RHRSpark have ads?
Neither Ksteps nor RHRSpark shows ads.
Which is updated more often, Ksteps or RHRSpark?
Ksteps ships an update every 5 days, and RHRSpark every 5 days. Most recently, Ksteps was updated on October 9, 2026 and RHRSpark on October 7, 2026.

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