Kento Umeki

Known for

My AI Journal

1app

Active nemesis

appChocolate

Other rivals

Publisher DNA

AI intelligence is not yet available for Kento Umeki. The portfolio data below is up to date.

Top niches they play in

Journaling Generators1 app

Explore the Journaling Generators niche

See every app competing in Kento Umeki's strongest niche.

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Portfolio

Apps

1 app analysed

Sort by

My AI Journal

5.0(1)

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Conversational AI interface lowers the barrier to daily entry
No data export functionality limits long-term user trust

Distributed across 12 markets, strongest in Europe.

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

Americas (3)

Brazil

User sentiment

User-sentiment analysis coming soon.

Rivals

The rivals identified

Nemeses(1)

appChocolate

known forQuote of the Day & Inspiration

1 app

So what?

Strategic outlook coming soon.

Frequently asked questions

How many apps does Kento Umeki publish?

Kento Umeki has 1 app tracked by Marlvel, primarily in the Lifestyle category.

What kind of apps does Kento Umeki make?

Kento Umeki's portfolio is concentrated in Lifestyle, with an average rating of 5.0/5 across rated apps.

Last updated

My AI Journal

v1.0.13

9d ago

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

This app competes for the same 'daily reflection' user mindset, capturing the market for users seeking daily mental stimulation and personal growth.

Contenders(2)

AutoBiographer

known forLegacy Lab - Auto Book Creator

1 app3.0Lifestyle

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This app targets the 'automated journaling' niche, aiming to turn daily inputs into a structured life narrative.

Chanho Lee

known forDrawMyToday - AI Picture Diary

1 app4.3Lifestyle

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Same space(3)

Chaoyang Minimal Software Studio

known forMinimal Diary - Life timeline

1 app4.7Lifestyle

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It serves the same core user base looking for a simple, efficient way to document their daily life.

Jake Biele

known for4rabet

1 app3.2Lifestyle

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Despite the name, it functions as a ritual-based organization tool for capturing memories and daily habits.

婷婷乔

known forOtterDiary: Journal & Diary

2 apps4.9Lifestyle

New entrants(2)

Amon Studio

known forLore: Every Chat Hides a Story

1 app0.0Lifestyle

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A direct threat that leverages existing chat data (WhatsApp) to generate narratives, bypassing the need for manual diary entry.

Manicgrin Media

known forfelt

1 app0.0Lifestyle

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What is Kento Umeki's top app?

Based on user sentiment and following across the portfolio, My AI Journal stands out as Kento Umeki's flagship app tracked by Marlvel.

In how many countries are Kento Umeki's apps available?

Marlvel has tracked Kento Umeki's apps across 12 countries.

It competes directly by using AI to transform daily experiences into visual diary entries, appealing to the same creative journaling audience.

It occupies the same lifestyle journaling space with a focus on timeline-based organization and long-term memory storage.

A new entrant focusing on visual collage-based journaling, competing for the same 'memory capture' lifestyle market.

Snapshot

Publisher DNA

Top niches they play in

Portfolio

Apps

Americas (3)

User sentiment

Rivals

The rivals identified

Nemeses(1)

So what?

Frequently asked questions

Europe (7)

Asia-Pacific (2)

Core markets (1/1 apps)

Contenders(2)

Same space(3)

New entrants(2)