We build tools to play better, and to learn Japanese.

Zapz Studio is an independent studio based in France. It designs and publishes GaijinToSensei, MetaAOE, MetaDBD and MetaDelta; every purchase is billed under this one name.

See the apps GaijinToSensei pricing

GaijinToSensei

MetaAOE

MetaDBD

MetaDelta

One studio, four apps

Four apps, each with its own colour

One tool for learning, three for players. The screenshots come from the apps themselves.

Japanese
GaijinToSensei
Available
Learn Japanese step by step, from kana to JLPT N1: short lessons, exercises, mock exams. The basics are free; JLPT levels are sold as a one-time payment.
Open gajintosensei.com
Age of Empires IV and II
MetaAOE
Website liveOverwolf: coming soon
Overwolf app for Age of Empires IV and Age of Empires II: build orders, stats and in-game help. Free, funded by ads.
Open metaaoe.app
Dead by Daylight
MetaDBD
Website liveOverwolf: coming soon
Tools and statistics for Dead by Daylight: the patch build for every killer and survivor, then a review after the match. Free.
Open metadbd.pages.dev
Delta Force
MetaDelta
In development
Companion for Delta Force: loot, maps, weapons. In development, nothing is sold yet.
Not online yet

GaijinToSensei

Japanese, from kana to JLPT N1

GaijinToSensei is the studio's only paid app. One-time payment, lifetime access to the content of the level(s) purchased: no subscription, no renewal.

Short, visual lessons
Corrected exercises
Mock exams for each JLPT level

JLPT packs

Pack N4€12 1 level
Pack N4 and N3€22~~€24~~ separately2 levels
Pack N4 to N2€30~~€36~~ separately3 levels
Pack N4 to N1€36~~€48~~ separatelyEvery level

Prices in euros, all taxes included. Struck-through prices: total of the levels bought separately.

The basics stay free: kana, particles, first N5 chapters.

See pricing on gajintosensei.com

How payment works

The same path for everything the studio sells, from checkout to refund.

1
Card payment through Stripe
On a secure checkout page. We never see or store your card details.
stripe
2
Instant digital delivery
The content is unlocked on your account as soon as payment is confirmed. Receipt sent by e-mail.
3
14 days to change your mind
Content not accessed: full refund on simple request within 14 days.
Refund policy

What about the free apps?

MetaAOE and MetaDBD are free. MetaAOE is funded by ads; a paid ad-free option is planned and will be listed here with its price before it goes on sale. MetaDelta is in development.