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Zapz Studio

I build apps to learn Japanese and to play better.

Zapz Studio is me: Zapz, an independent developer based in France. I publish GaijinToSensei, MetaAOE, MetaDBD and MetaDelta. Purchases made in these apps are billed as Zapz Studio, through Stripe.

The apps

One for learning Japanese, three for online games. The pictures and videos come from the apps as they are today.

MetaAOE, MetaDBD and MetaDelta are fan-made tools, not affiliated with Microsoft, World's Edge, Behaviour Interactive or the publisher of Delta Force.

GaijinToSensei videos are also on YouTube and TikTok.

GaijinToSensei

Japanese, from kana to JLPT N1

GaijinToSensei is the studio's only paid app. Each JLPT level is bought once and stays on your account: no subscription, nothing renews.

Already live and free

  • Hiragana and katakana, with pronunciation
  • Particles and the first N5 chapters
  • Quizzes, timed drills, challenges between friends

JLPT packs

Levels N4 to N1 and their mock exams are still in progress: the prices below are launch prices.

  • 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 one by one.

See pricing on gajintosensei.com

Payment and refunds

The same path for everything I sell, which today means GaijinToSensei's JLPT levels only.

  1. Step 1

    You pay by card, on Stripe

    Payment happens on Stripe's secure checkout page. I never see your card number and I don't store it anywhere.

  2. Step 2

    The level unlocks right away

    As soon as Stripe confirms the payment, the content you bought opens on your account. The receipt arrives by e-mail.

  3. Step 3

    14 days to change your mind

    Content not opened yet: full refund on request within 14 days. Technical problem: I fix it or refund you, whatever the delay.

    Refund policy

Who's behind it

Zapz

Zapz Studio is one person: me, Zapz, an independent developer in France. I decide what goes into the apps, I keep them moving and I read the messages that come in.

I ship in small steps, almost every day. The development log keeps track of it, with dates.

Where to find me

Development log

What I worked on over the last few days. Some changes go live with the app's next update.

  1. GaijinToSensei

    Chapter 30, "Linking ideas": から, ので, けど and でも. Three chapters also get their intro video.

  2. MetaDelta

    Match history now shows a small net-earnings curve for the matches you filter.

  3. MetaAOE

    AoE II: when a match loads, a card shows the map, the enemy civ and its usual opening.

  4. MetaAOE

    Version 1.1.0 ready: build orders from pro players for most AoE II civs.

  5. GaijinToSensei

    Chapter 25: everyday kanji, with a lesson, an exercise, practice and a test.

  6. MetaDelta

    Loot value follows the market: prices refresh every 3 hours.

  7. MetaDBD

    All 15 languages are now complete, no text falls back to English. Navigation fits in 7 entries instead of 16 tabs.

  8. GaijinToSensei

    Intro video for the Katakana lesson, with real Japanese pronunciation.

Common questions

Who takes my payment?

Zapz Studio, through Stripe. You pay on Stripe's checkout page, which keeps your card details: I never see them.

Is it a subscription?

No. A GaijinToSensei JLPT level is paid once and stays on your account. Nothing is charged again the next month.

I picked the wrong pack. Can I get a refund?

Yes, as long as you haven't opened the content you bought: full refund on request within 14 days of purchase, no reason needed.

Refund policy
Are MetaAOE and MetaDBD paid?

No. MetaDBD is free, and so is MetaAOE, with ads. An ad-free option is planned: its price will be listed here before it goes on sale. Both apps are coming to Overwolf soon; their websites are already live.

Are these apps official?

No. MetaAOE, MetaDBD and MetaDelta are fan-made tools, not affiliated with Microsoft, World's Edge, Behaviour Interactive or the publisher of Delta Force.

A question before buying?

The terms of sale spell everything out. For anything else, write to me.