Tatsuya Yamaguchi: Apps, positioning, trajectory

Active nemesis

Sagar Vaghela

Other rivals

Portfolio

Free 2

apps

Medicina1

Utilities1

Last updated

Baby Growth Chart Lite

Publisher DNA

AI intelligence is not yet available for Tatsuya Yamaguchi. The portfolio data below is up to date.

Top niches they play in

Pokemon Quizs1 app

Explore the Pokemon Quizs niche

See every app competing in Tatsuya Yamaguchi's strongest niche.

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Portfolio

Apps

2 apps analysed

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Baby Growth Chart Lite

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Analysis in progress

PokéType Chart

2.0(1)

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Multi-language interface (8 languages) enables broader international reach than single-language competitors.
3-day trial gate forces a purchase decision before users establish long-term utility.

Distributed across 8 markets, strongest in Europe.

Based on 1 of 2 apps with localized market data, more coverage rolling in as scans complete · last scanned May 2026.

Americas (2)

Mexico1 / 1
United States1 / 1

Europe (4)

France1 / 1
Germany1 / 1

Core markets (1/1 apps)

FranceGermanyItalyJapanMexicoSouth KoreaSpainUnited States

Rivals

The rivals identified

Nemeses(1)

Sagar Vaghela

known forGO Field Guide

1 app4.0Utilities

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This app serves the exact same Pokémon GO utility niche with a massive, established user base and long-term market presence.

Same space(1)

Tim O's Studios

known forCalculator‰

1 app4.4Utilities

Frequently asked questions

How many apps does Tatsuya Yamaguchi publish?

Tatsuya Yamaguchi has 2 apps tracked by Marlvel, primarily in the Medicina category.

What kind of apps does Tatsuya Yamaguchi make?

Tatsuya Yamaguchi's portfolio is concentrated in Medicina and Utilities, with an average rating of 2.0/5 across rated apps.

What is Tatsuya Yamaguchi's top app?

Based on user sentiment and following across the portfolio, Baby Growth Chart Lite stands out as Tatsuya Yamaguchi's flagship app tracked by Marlvel.

In how many countries are Tatsuya Yamaguchi's apps available?

Marlvel has tracked Tatsuya Yamaguchi's apps across 8 countries.

While categorized under Utilities, this app operates in a different functional domain and lacks direct thematic overlap with Pokémon type analysis.

Tatsuya Yamaguchi