Comparison

S vs SwimPaceTimer

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

Head to head
About

S

This app works with a wearable ECG device to display real-time heart activity and rate. Users can log symptoms and activities in a diary and securely share data with healthcare professionals for informational purposes.

Highlights
  • Connects to S-Patch wearable device
  • Real-time ECG signal display
  • Continuous heart rate calculation
  • Symptom and activity logging diary
  • Secure cloud data upload
  • Bluetooth disconnection alerts
Features
Read full description

S-Patch Ex is an ECG monitoring app designed to work with the S-Patch wearable device. Once connected via Bluetooth, the app displays real-time ECG waveforms and heart rate (HR) values. It also allows users to log symptoms and activities through an in-app diary, and securely upload recorded data to a designated cloud platform for review by healthcare professionals. The S-Patch Ex App is intended to assist users in tracking and recording ECG and HR data for informational and wellness purposes only. It is not a medical device and should not be used to diagnose, treat, or monitor any medical conditions. Disclaimer: This app does not provide medical advice, diagnosis, or treatment. All displayed values are for informational use only and should not replace consultation with a qualified healthcare provider. Jurisdiction Statement: The S-Patch Ex App and the S-Patch device are cleared for use in South Korea and the United States. The S-Patch device is FDA-cleared in the United States.
Use of the S-Patch Ex App outside these regions is not permitted unless additional regulatory clearances are obtained. Key features of the S-Patch Sports App: * Connects to the S-Patch wearable ECG monitoring device * Displays real-time ECG signals * Continuously calculates and shows heart rate * Allows users to log symptoms and activities with a diary feature * Start and end ECG recordings on demand * Securely uploads recordings to a cloud platform for healthcare provider review * Notifies users if the device becomes disconnected via Bluetooth The S-Patch Ex App requires a Serial Number from the S-Patch device to activate. To continuously display ECG and HR, the app must remain connected to the S-Patch device at all times.

About

SwimPaceTimer

Features
Read full description

SwimPaceTimer is an Apple Watch interval timer for the pool. Three settings, that's it: distance, reps, and your send-off cycle. MADE FOR SWIMMERS WHO - are tired of watching the pace clock and counting in their head - just want to hold a send-off without fiddling with settings mid-set WHAT IT DOES - Build a set: distance x reps x send-off cycle (e.g. 25yd x 5 @ 1:30) - Tap start, get 5 seconds on the wall, then push off on the buzz - A heads-up buzz 5 seconds out, then a start buzz - hold your cycle without looking at your wrist - Countdown ring, rep dots, heart rate, split and total time at a glance - Live heart rate on screen while you swim WORKS ALONGSIDE THE WORKOUT APP SwimPaceTimer is a send-off timer, not a tracker. It never takes over a workout you are already recording. Start a pool swim in the built-in Workout app if you want it saved to Health — that also turns on Water Lock for you — then let SwimPaceTimer handle the send-offs. BUILT FOR THE WATER Screens are hard to read and harder to tap when you're wet. Set everything on the wall before you push off, then swim - your wrist tells you when to go. Yards or meters follows your region automatically.

Screenshots

S4 screens
SwimPaceTimer1 screens

Verdict

The call

The clearest difference is update cadence: SwimPaceTimer at every 5 days against S's every 4 weeks. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

S ships an update every 4 weeks, SwimPaceTimer every 5 days. The most recent releases landed on October 4, 2026 and September 27, 2026 respectively.

Scorecard1 real difference · 9 level
S versus SwimPaceTimer: the parameters behind the verdict, then further details
ParameterSSwimPaceTimer
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 4 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS15.1 — better16.0
Further details — not scored
Size39 MB1 MB
Age rating12+4+
DeveloperWellysis Corp.Kyunghyun Choi

In-app purchases

None

S

No in-app purchases

None

SwimPaceTimer

No in-app purchases

Questions

Is S free?
S is free to download, with no in-app purchases.
Is SwimPaceTimer free?
SwimPaceTimer is free to download, with no in-app purchases.
Do S or SwimPaceTimer have ads?
Neither S nor SwimPaceTimer shows ads.
Which is updated more often, S or SwimPaceTimer?
S ships an update every 4 weeks, and SwimPaceTimer every 5 days. Most recently, S was updated on October 4, 2026 and SwimPaceTimer on September 27, 2026.

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