Comparison

okorusan vs Zarko

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

okorusan

Features
Read full description

「その時間、未来のお前から盗んでるんやぞ。」 okorusan(おこるさん)は、あなたの代わりに怒ってくれるコーチが、スマホの使いすぎを本気で止めるアプリです。 優しいリマインダーは、もう効かない。通知を消して、また開く。その繰り返しに疲れたあなたへ。 ■ こんな人のためのアプリです ・SNSやショート動画を「気づいたら1時間」見てしまう ・やめたいのに、自分の意志ではやめられない ・自己嫌悪のループから、そろそろ抜け出したい ■ 使い方はかんたん(3ステップ) 1. コーチを選ぶ(熱血コーチ/OKORU博士) 2. 本当にやりたい目標を書く 3. 見張ってほしいアプリと、1日の上限時間を決める あとはコーチが24時間、見張ります。 ■ 使いすぎたら、画面ごとブロック 上限を超えたアプリを開くと、コーチが立ちはだかります。スワイプでは消せません。 それでも開きたいときは——自分で書いた「目標」を、一字一句あなたの手で打ち直してください。 コーチはあなたの目標を盾に、あなたを叱ります。 ■ 2人のコーチから選べる ・熱血コーチ: 「その時間、未来のお前から盗んどるんやぞ。」 ・OKORU博士: 「この操作は、処方に反します。」 ■ 叱るだけじゃない。がんばりは、ちゃんと褒める 守れた日は「合格」スタンプ。連続達成記録が伸びていきます。 明日も頼みたくなる、相棒のようなコーチです。 ■ プライバシー最優先の設計 ・スクリーンタイムの生データ(何のアプリを何分使ったか)は、端末の外に一切出ません ・アカウント登録は不要。データはすべてあなたのiPhoneの中だけ ・匿名の利用統計も、あなたが同意した場合のみ送信します ・もちろん無料です ■ ご利用にあたって ・iOS 16以上が必要です ・スクリーンタイムへのアクセス許可が必要です(初回設定でご案内します) ・使いすぎの検知・ブロックはiOSのスクリーンタイム機能を利用しており、OSの状態により検知が数分遅れる場合があります

About

Zarko

Read full description

You can't trust yourself to put the phone down. So don't rely on willpower alone — rely on a real challenge. Zarko is a screen-time blocker with a twist: once you lock in a focus session, the way out is to prove it — not to quit. HOW IT WORKS • Choose the apps, categories, or websites you want blocked — powered by Apple's official Screen Time (FamilyControls) framework. • Start a focus session and get to work. Your chosen apps and sites stay locked for the full duration. • Tempted to check your phone early? Complete a quick physical or mental challenge — shake, walk, type, solve, remember — to break the block before time's up. No luck involved: finish the challenge and you're unlocked. • Want zero exits? Turn on Strict Mode in Settings and the give-up option stays locked until you're halfway through the session — the challenge becomes the only way out. BUILD A STREAK, NOT JUST A HABIT Every completed session adds to your daily streak. Miss a day and it resets — but your history stays. Track your weekly focus time, session count, and streak in one clean stats screen, and share your progress as a ready-to-post card. UNLOCK THEME COLORS Every successful challenge gives you a new color theme for the app — pure cosmetic, zero pay-to-win. Collect them all. WHY IT WORKS Traditional blockers fail because quitting is always one tap away. Zarko puts real effort between you and that tap, so staying focused becomes the easy choice — and if you want the door closed for real, Strict Mode removes the easy exit entirely. PRIVACY FIRST Zarko blocks apps and websites entirely on your device using Apple's Screen Time APIs. We never see which apps you use, what you type, or your browsing history — that data never leaves your phone. UNLOCK EVERYTHING (OPTIONAL ONE-TIME PURCHASE) Blocking, focus sessions, unlock challenges, streaks, and theme collecting are free — no ads, no subscriptions. If you want more, a single one-time purchase adds: • Your equipped theme color across the whole app and the block screen • Custom session lengths, from 5 minutes to 3 hours • Detailed stats: week-over-week trends and your top blocked apps by Screen Time Pay once, keep it forever. And no purchase ever lets you skip the challenge — the only way out early is still to earn it.

Screenshots

okorusan4 screens
Zarko4 screens

Verdict

The call

The clearest difference is update cadence: okorusan at daily against Zarko's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

okorusan ships an update daily, Zarko every 2 weeks. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

Scorecard1 real difference · 5 level
okorusan versus Zarko: the parameters behind the verdict, then further details
ParameterokorusanZarko
PriceFreeFree
Update frequencyDaily — betterEvery 2 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone
Requires iOS16.0 — better17.6
Further details — not scored
Size40 MB5 MB
Age rating4+4+
DeveloperKota SuzukiJaehoon Lee

In-app purchases

None

okorusan

No in-app purchases

None

Zarko

No in-app purchases

Questions

Is okorusan free?
okorusan is free to download, with no in-app purchases.
Is Zarko free?
Zarko is free to download, with no in-app purchases.
Do okorusan or Zarko have ads?
Neither okorusan nor Zarko shows ads.
Which is updated more often, okorusan or Zarko?
okorusan ships an update daily, and Zarko every 2 weeks. Most recently, okorusan was updated on October 11, 2026 and Zarko on October 10, 2026.

Other comparisons