Comparison

Whistle Blow vs Splitwatch Track

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

Head to head
About

Whistle Blow

Transform your device into a realistic whistle with multiple triggering options. Adjust sensitivity, volume, and choose from various sounds for attention-getting, coaching, or sound effects. Works offline and is privacy-friendly.

Highlights
  • Blow-to-whistle with adjustable mic sensitivity
  • Tap or shake to trigger
  • Apple Watch remote triggering
  • Multiple whistle sound options
  • Adjustable volume control
  • Optional on-screen mic level meter
  • Offline functionality
Features
Read full description

Blow Whistle turns your iPhone into a crisp, realistic whistle, no hardware needed. Trigger it your way: blow into the mic, shake your device, tap the screen, or remotely trigger it from your Apple Watch. Perfect for getting attention, coaching, pranks, or quick sound effects. Dial in exactly how you want it to respond with adjustable microphone sensitivity and full volume control. Pick your favorite whistle sound and, if you like, display a live mic level meter for visual feedback. Features: - Blow-to-whistle with adjustable mic sensitivity - Tap or shake to trigger, no mic required - Apple Watch support: trigger your iPhone from your wrist, or whistle right from the watch when your iPhone is out of reach - Siri, Shortcuts and Action button support (iOS 16 or later) - Choose from multiple whistle sounds - Volume control for any environment - Optional on-screen mic level meter - Works offline, lightweight, and fast Privacy-Friendly: - Microphone access is only used for the blow-to-whistle feature. You can still tap, shake, or use Apple Watch without granting mic permission. Note: Blow Whistle is for fun and everyday use. It is not a substitute for safety devices or emergency signaling. Compatibility: - iPhone and iPad - Apple Watch (requires paired iPhone)

About

Splitwatch Track

Calculate your running split times for training or competition. Monitor your pace during a race with the integrated stopwatch. Unlock advanced features like multi-runner tracking and customization with the Pro version.

Highlights
  • Calculate split times
  • Integrated stopwatch
  • Monitor race pace
  • Track multiple runners (Pro)
  • Customize stopwatch design (Pro)
  • Apple Watch app support
Features
Read full description

Splitwatch Track calculates split times for your run! Simply enter the distance and time you want to run. Splitwatch will then calculate your split times. During the run, you or your coach can monitor the race using the integrated stopwatch. Use the app to calculate split times before a race, for example. During the race, your coach can tell you exactly whether you are keeping up your pace. Perfect for your next track and field competition! Unlock even more with Splitwatch Pro: track multiple runners at the same time, adjust race settings, and customize the stopwatch design. You can also use the Apple Watch app to monitor your pace yourself while running.

Screenshots

Whistle Blow4 screens
Splitwatch Track3 screens

Verdict

The call

The clearest difference is price: Splitwatch Track at Free against Whistle Blow's $0.99. Splitwatch Track also leads on update cadence (every 2 months vs every 8 months). Whistle Blow's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 17.6). On 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

Splitwatch Track is free to download; Whistle Blow costs $0.99 up front. Splitwatch Track sells 1 one-off in-app purchase. Whistle Blow asks for nothing beyond the download.

UpkeepUpdate frequency

Whistle Blow ships an update every 8 months, Splitwatch Track every 2 months. The most recent releases landed on October 8, 2026 and October 18, 2026 respectively.

Scorecard5 real differences · 5 level
Whistle Blow versus Splitwatch Track: the parameters behind the verdict, then further details
ParameterWhistle BlowSplitwatch Track
Price$0.99Free — better
Rating—4.0 (1 ratings) — better
Positive reviews20.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 8 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Apple Watch
Requires iOS15.0 — better17.6
Further details — not scored
Size6 MB4 MB
Age rating4+4+
DeveloperDaniel AstoMichael Strupp

Customer experience

Whistle Blow

Written reviews15 reviews
Positive20.0%
Neutral26.7%
Negative53.3%

Splitwatch Track

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

In-app purchases

None

Whistle Blow

No in-app purchases

1 purchases

Splitwatch Track

One-time1
  • Splitwatch Pro$2.99

Questions

Is Whistle Blow free?
Whistle Blow costs $0.99, with no in-app purchases.
Is Splitwatch Track free?
Splitwatch Track is free to download, with in-app purchases available.
Do Whistle Blow or Splitwatch Track have ads?
Neither Whistle Blow nor Splitwatch Track shows ads.
Which is updated more often, Whistle Blow or Splitwatch Track?
Whistle Blow ships an update every 8 months, and Splitwatch Track every 2 months. Most recently, Whistle Blow was updated on October 8, 2026 and Splitwatch Track on October 18, 2026.

Other comparisons