Comparison

Pool Clock vs Coach Larry Stroke Lab

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

Head to head
About

Pool Clock

This app simulates a traditional swimming pace clock for interval training. It helps swimmers track intervals, set preparation times, and manage repetitions. Features include an optional digital clock and sound alerts.

Highlights
  • Interval training timer
  • Customizable interval repetitions
  • Preparation time setting
  • Optional digital clock display
  • Countdown beep sound
  • Screen stays on during use
Features
Read full description

Pool Clock is designed for interval-based training during swimming exercise. This app simply reproduces the traditional analog swimming pace clock found on the pool deck. By placing your device or a TV monitor connected to the device at the poolside, you can start swimming workouts wherever you are. Be careful to keep your electronic device waterproof when use it poolside. *** Interval *** With the interval function, you can easily track the interval on the pace clock. Once you set the Interval Time, Iteration (the number of interval repetitions), and Preparation time (time before the first start), a small triangle appears on the outside of the dial of the clock to indicate the next start time. *** Digital Clock *** The digital clock can be displayed or hidden using the ON/OFF button in the menu. The digital clock displays the current time of the device. You can choose between 12-hour or 24-hour display. *** Sound *** You can turn on/off the countdown beep sound in the menu. *** Notice *** This app prevents the screen from turning off while it is open.

About

Coach Larry Stroke Lab

Features
Read full description

Coach Larry Stroke Lab helps swimmers and parents turn focused swim clips into technical feedback, practice priorities, and same-angle recheck plans. The app opens directly into a mobile stroke review workflow: choose a stroke and camera angle, record the swimmer's goal, route a secure video link or clip manifest, and keep family-ready review notes and practice assignments organized. For swimmers and parents: - Submit a swim clip or secure video link with stroke, camera angle, package, guardian consent, and privacy preferences. - Review coach feedback previews, timestamp markers, action plans, and recheck capture guidance. - Sign in to keep private review drafts, notes, and Larry-assigned practice work tied to the swimmer account. For Coach Larry's workflow: - Track booking leads, review readiness, coach notes, practice assignments, call notes, video edit plans, and delivery status. - Keep public profile, package, privacy, and release-readiness copy in one operating console. - Use read-only admin previews without exposing private coach queues until a coach or admin account is authorized. Coach Larry Stroke Lab is built for private swim video review and practice planning. Review material is kept private, parent or guardian consent is explicit, and direct video upload remains limited until the prepared Firebase Storage workflow is fully enabled.

Screenshots

Pool Clock3 screens
Coach Larry Stroke Lab4 screens

Verdict

The call

The clearest difference is price: Coach Larry Stroke Lab at Free against Pool Clock's $0.99. Coach Larry Stroke Lab also leads on update cadence (weekly vs every 25 months). Pool Clock's advantage is iOS requirement (12.0 vs 15.4). On 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

Coach Larry Stroke Lab is free to download; Pool Clock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Pool Clock ships an update every 25 months, Coach Larry Stroke Lab weekly. The most recent releases landed on October 15, 2026 and September 24, 2026 respectively.

Scorecard3 real differences · 7 level
Pool Clock versus Coach Larry Stroke Lab: the parameters behind the verdict, then further details
ParameterPool ClockCoach Larry Stroke Lab
Price$0.99Free — better
Rating3.8 (4 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 25 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.4
Further details — not scored
Size3 MB5 MB
Age rating4+4+
DeveloperSohta ItohKing of the Curve, LLC

In-app purchases

None

Pool Clock

No in-app purchases

None

Coach Larry Stroke Lab

No in-app purchases

Questions

Is Pool Clock free?
Pool Clock costs $0.99, with no in-app purchases.
Is Coach Larry Stroke Lab free?
Coach Larry Stroke Lab is free to download, with no in-app purchases.
Do Pool Clock or Coach Larry Stroke Lab have ads?
Neither Pool Clock nor Coach Larry Stroke Lab shows ads.
Which is updated more often, Pool Clock or Coach Larry Stroke Lab?
Pool Clock ships an update every 25 months, and Coach Larry Stroke Lab weekly. Most recently, Pool Clock was updated on October 15, 2026 and Coach Larry Stroke Lab on September 24, 2026.

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