The full PaceFlow › Coming November 2026

For fast bowlers · iPhone

How fast.
And what to fix.

Film one delivery from side on. PaceFlow Lite measures the speed and reads your action position by position – then tells you the one thing to work on this week.

A real delivery, measured at 66 mph. The skeleton and the ball's flight are the app's own tracking, played at the same 0.3× cadence the app uses on a delivery.

Nothing to pay to find out how fast you bowl.

Freeto download

Freeto sign up

Freeto analyse. Unlimited, every ball

You pay to keep them. Speed, run-up, every measured position and your score come free on every ball you bowl. A subscription is what holds the history: every delivery instead of your latest, the trend across a season, and the coach toolset.

The report

Your action, frozen where it matters.

A delivery takes about half a second. PaceFlow Lite finds the moments inside it that decide how fast the ball comes out: the gather, back-foot contact, front-foot contact, and the instant of release. It measures your position at each one.

Every measure shows the frame it came from – the actual picture of you, at the moment it was taken.

High front arm measured at BFC, angle drawn on the frame — Where the non-bowling arm gets to. It sets the height and the line everything else rotates around.

Delayed arm measured at FFC, angle drawn on the frame — Whether the bowling arm stays back as the front foot lands, so the trunk can whip it through.

Heel strike measured at FFC, angle drawn on the frame — Whether the front foot lands heel-first. It changes how the leg braces and what the knee does next.

Trunk flexion measured at FFC → BR, angle drawn on the frame — How much you fold through the delivery stride, one of the largest contributors to pace.

Front knee measured at BR, angle drawn on the frame — How well you brace the front leg. A straighter front knee turns run-up speed into ball speed.

Five positions from one side-on clip. A rear view adds arm bend and the run-up line and completes the score. Until you film one, the score stays paused.

What a subscription holds

One delivery tells you where you are. A season tells you if it's working.

Speed, run-up, each of the positions – every measure gets its own line, over a day, a month or a year. Your newest delivery sits next to your best one, so you can see the difference for yourself.

4 weeks, high front arm.

9:41 · 64%

PaceFlow Lite scoreRun-up alignmentRun-up speedHeel strikeHigh front armDelayed armTrunk driveFront knee at releaseArm bendBall speed

DayWeek4 weeks8 weeks6 monthsYear

every point is a real delivery. tap one to open it · the dashed line is the green band

High front arm · BFC ● still front arm 28°

Newest 28°~~Paul Felton · side · 1:42pm, 8 Aug~~

High front arm · BFC ● still front arm 56°

Best 56°~~Paul Felton · side · 3:33pm, 4 Aug~~

WHAT MOVED 28° in your latest session, down from 56° at your best. 38 more degrees and high front arm goes green.

3 deliveries in this line · Paul Felton's clips only · recorded by them or for them

HomeLibrarySquadProfile

The dashed line is the green band. Everything below it is the work, and the app tells you how many degrees are left.

The whole delivery

Scrub to any moment. Draw on it. Talk over it.

Move through the delivery frame by frame, stop where something interesting happens, and mark it up with lines, angles and arrows, your voice over the top. A coach sends that back attached to the ball it refers to.

Paul's delivery, every frame the app measured from.

A delivery frame with the skeleton drawn on, ready to annotate

JGBFCFFCREL

2.82s 0.25x 0.5x1x

And the same delivery, large enough to work on: step a frame at a time, jump straight to the gather, back foot, front foot or release, then draw on it and talk over it.

Screens shown with example history. The measured values are Paul's real ones and the targets are the app's own. On free you keep your latest side and latest rear analysis. A new recording of that angle replaces the last one.

For parents

The measuring happens on the phone.

Your child's footage can stay on the phone and still give you the numbers. The tracking, the angles and the speed are all worked out on the device. Unusual for this kind of app, and deliberate for this kind of user.

And nothing a young player records is ever published as video. Under-18 leaderboard entries are metrics only: a speed and a first name, with no footage attached, and our servers enforce that.

How it works

Three things, and none of them are fiddly.

Set the phone up

About ten metres side on to the stumps, chest height, landscape. The app shows you the frame to match. Keep it steady and don't pan. A tripod is ideal, but a steady pair of hands works.

Bowl

One delivery is enough. The app finds the ball, tracks your body through the action and works out the speed on the phone, while you walk back.

Read the one thing

You get every measure and a score. But the line that matters is the one at the top – the single change worth making this week.

A full analysis takes a few minutes, not a few seconds. It steps through the footage frame by frame – and that is where the time goes. Works for right- and left-arm bowlers.

Every band in the report was set against the biomechanics literature: what counts as good, what needs work.

Thresholds and coaching wording reviewed and set by Prof. Mark King, School of Sport, Exercise and Health Sciences, Loughborough University. He is senior author of the 2024 systematic review of fast-bowling technique and ball speed, and a co-founder and director of DINETICQ. PaceFlow Lite is a DINETICQ product and is independent of the University.

Measurements are estimated from ordinary 2D video. PaceFlow Lite is a coaching aid, not a laboratory system and not medical advice. Where the app cannot measure something reliably it says so rather than showing a number it does not believe.

From DINETICQ

The phone gets you started. People take it further.

PaceFlow Lite measures your action on your own phone, on your own. DINETICQ, who build it, do the parts a phone cannot: analysis read by a team with twenty years of bowling-action experience, accredited by the ICC and ECB.

PaceFlow · report

PaceFlow bowling report

A comprehensive report with fully personalised analysis and feedback: pace potential, injury risk and an overall bowling profile. Buy one directly, or talk to us about club and squad pricing.

Buy a report › PaceFlow · report

Legality feedback report

A biomechanist’s review of the bowling arm from one rear clip: how much the elbow straightens between the arm reaching horizontal and the ball leaving the hand. An informal review against the ICC’s rules, not a formal assessment. It is a PaceFlow service, not a PaceFlow Lite one. Lite deliberately does not do this, and reports arm bend as a band rather than as a verdict.

Buy a legality feedback report › ProPace · in person

ProPace Clinic

A four-day, on-site service for elite fast bowlers: comprehensive assessment and a personalised review, built on twenty years of research at Loughborough.

Learn more › ProPace · for coaches

ProPace Academy

Coach education in bowling movement science: on demand, online, and in person. The biomechanics behind every number in this app, taught properly.

See the courses ›

Clubs and organisations buying several reports: five or more is 10% off, ten or more is 25% off. Contact the team for bespoke pricing, or see everything at dineticq.com.

Get it the day it's out.

PaceFlow Lite arrives on the UK App Store in November 2026. Leave your name and we'll tell you the day it lands.

How fast.And what to fix.

Be first to know when it lands