Christina Lau

Known for

TennisKeeper: Swings & Scores

1app

Top rival

JOYFIT

Other rivals

Portfolio

Free 1

app

Health & Fitness

Publisher DNA

AI intelligence is not yet available for Christina Lau. The portfolio data below is up to date.

Top niches they play in

Tennis Trackers1 app

Explore the Tennis Trackers niche

See every app competing in Christina Lau's strongest niche.

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Portfolio

Apps

1 app analysed

Sort by

TennisKeeper: Swings & Scores

2.8(40)

View Intel →

TennisKeeper: Swings & Scores screenshot 1

TennisKeeper: Swings & Scores screenshot 2

TennisKeeper: Swings & Scores screenshot 3

Comprehensive tracking of tennis workout metrics provides value for dedicated league and club players
Inaccurate swing classification and shot counting undermine the utility of the automated tracking features

User sentiment

Positive apps

Neutral / mixed

Negative apps

35/100

Avg sentiment score

Top performer

TennisKeeper: Swings & Scores

Frustrated sentiment

Rivals

The rivals identified

Same space(4)

JOYFIT

known forPitPat

1 app

So what?

Strategic outlook coming soon.

Frequently asked questions

How many apps does Christina Lau publish?

Christina Lau has 1 app tracked by Marlvel, primarily in the Health & Fitness category.

What kind of apps does Christina Lau make?

Christina Lau's portfolio is concentrated in Health & Fitness, with an average rating of 2.8/5 across rated apps.

Last updated

TennisKeeper: Swings & Scores

v3.29

8mo ago

Distributed across 12 markets, strongest in Europe.

Based on 1 of 1 app with localized market data · last scanned May 2026.

Americas (3)

Brazil1 / 1
Mexico1 / 1
United States1 / 1

Europe (7)

France1 / 1
Germany1 / 1
Italy1 / 1
Netherlands1 / 1
Portugal1 / 1

›+2 more europe markets

Spain1 / 1
Sweden1 / 1

Asia-Pacific (2)

Japan1 / 1
South Korea1 / 1

Core markets (1/1 apps)

BrazilFranceGermanyItalyJapanMexicoNetherlandsPortugalSouth KoreaSpainSwedenUnited States

Directly overlaps in the racquet sports niche by focusing on match-based tracking and competitive performance metrics.

Karan Pandya

known forLiftr Workout & Gym Planner

1 app4.5Health & Fitness

View Intel →

Competes for the same health-conscious user base by offering structured activity tracking and performance visualization within the Apple ecosystem.

Traduko AB

known forWeightroom Workout Tracker

1 app4.6Health & Fitness

View Intel →

Targets the same demographic of fitness enthusiasts who prioritize tracking progress and maintaining detailed workout logs.

Valter Hemmi

known forLiftin' - Gym Workout Tracker

1 app4.7Health & Fitness

View Intel →

Competes for the same user attention by providing high-quality progress visualization and automated tracking tools for fitness activities.

What is Christina Lau's top app?

Based on user sentiment and following across the portfolio, TennisKeeper: Swings & Scores stands out as Christina Lau's flagship app tracked by Marlvel.

In how many countries are Christina Lau's apps available?

Marlvel has tracked Christina Lau's apps across 12 countries.

Snapshot

Publisher DNA

Top niches they play in

Portfolio

Apps

User sentiment

Rivals

The rivals identified

Same space(4)

So what?

Frequently asked questions

Americas (3)

Europe (7)

Asia-Pacific (2)

Core markets (1/1 apps)