Comparison

CalcuSplit vs ParamWatch

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

Head to head
About

CalcuSplit

Easily time multiple runners simultaneously for races, relays, or interval workouts. Save and load presets for quick setup, track lap splits, and toggle rest periods. Export results in various formats or text them directly to participants.

Highlights
  • Time multiple runners at once
  • Track lap splits and finish times
  • Save and load event presets
  • Real-time handoff tracking for relays
  • Toggle rest periods for interval training
  • Export results as PDF, CSV, or HTML
  • Text results directly to runners
Features
Read full description

The lap timer and split tracker built for timing multiple runners at once. Whether you're coaching track, timing a relay, running a cross country meet, or doing intervals with friends — CalcuSplit makes it easy to record splits for everyone. --- Easy race and workout timing: - Time multiple runners at once — one tap per runner - Track lap splits and finish times for races or interval workouts - Save race, relay, or workout setups as presets — load and start timing in seconds - Review and edit the event name, meet name, or runner lineup before starting from a preset - Run relay events with team assignment, leg order, and real-time handoff tracking - Toggle rest periods on or off — perfect for continuous interval training - Organize events into meets for track meets and multi-day competitions - Export results as PDF, CSV, or HTML to share with your team - Text formatted results straight to your runners after an event - Screen stays on during timing — no interruptions mid-race (configurable in Settings) --- CalcuSplit Premium unlocks with a one-time purchase: - View each runner's complete race and workout history - Export a runner's full history as CSV, HTML, or PDF - Browse and export past events and meets - Import rosters from spreadsheets or CSV — preview before importing so you catch mistakes early --- All core timing features work without Premium. Upgrade anytime — your saved results will be ready to view and export. Your data stays on your device. No ads, no tracking, no account required. Works offline at any track, trail, or course.

About

ParamWatch

Features
Read full description

ParamWatch turns your Apple Watch into a real-time dashboard for your body and your surroundings. No extra hardware, no subscription — just clean, live data directly from your watch sensors. BIOMETRICS PAGE · Heart Rate — continuous BPM from HealthKit · SpO₂ — blood oxygen saturation · HRV — heart rate variability in milliseconds, a key indicator of recovery and stress · Respiratory Rate — breaths per minute ACTIVITY PAGE · Speed — real-time GPS speed in km/h with satellite lock indicator · Altitude — elevation above sea level in metres · Distance — total walking/running distance for the day · Steps — step count since midnight · Calories — active energy burned today · Weather — outdoor temperature and humidity, refreshed every 2 minutes from your current location DESIGNED FOR WATCH ParamWatch is a standalone watchOS app. No iPhone app required, no companion needed. The interface fits the watch face with two swipeable pages so every metric is one glance away. PRIVACY FIRST All health data stays on your device. ParamWatch reads from HealthKit but never stores or uploads your personal data. Weather is fetched anonymously from the open-source Open-Meteo API using only your current coordinates — no account required. COMPLICATION INCLUDED A watch complication lets you pin heart rate, speed, and distance directly on any watch face that supports rectangular complications.

Screenshots

CalcuSplit4 screens

Verdict

The call

The clearest difference is in-app purchases: ParamWatch at none against CalcuSplit's 1. 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. CalcuSplit sells 1 one-off in-app purchase. ParamWatch asks for nothing beyond the download.

UpkeepUpdate frequency

CalcuSplit ships an update every 3 weeks, ParamWatch every 2 weeks. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.

Scorecard1 real difference · 9 level
CalcuSplit versus ParamWatch: the parameters behind the verdict, then further details
ParameterCalcuSplitParamWatch
PriceFreeFree
Rating4.7 (20 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings20 — better—
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS17.616.0 — better
Further details — not scored
Size3 MB1 MB
Age rating4+4+
DeveloperJoseph IannazzoneLuca Ceci

In-app purchases

1 purchases

CalcuSplit

One-time1
  • CalcuSplit Premium$4.99
None

ParamWatch

No in-app purchases

Questions

Is CalcuSplit free?
CalcuSplit is free to download, with in-app purchases available.
Is ParamWatch free?
ParamWatch is free to download, with no in-app purchases.
Do CalcuSplit or ParamWatch have ads?
Neither CalcuSplit nor ParamWatch shows ads.
Which is updated more often, CalcuSplit or ParamWatch?
CalcuSplit ships an update every 3 weeks, and ParamWatch every 2 weeks. Most recently, CalcuSplit was updated on October 3, 2026 and ParamWatch on September 30, 2026.

Other comparisons