U2plus vs Samurai Mindfulness
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
U2plus
This app offers a quiet space for self-care, combining AI-powered cognitive behavioral therapy (CBT) with gentle encouragement. It allows users to track daily achievements, visualize negative thought patterns, and find alternative perspectives during difficult times, all within a safe, low-pressure environment.
- Daily achievement logging
- Monthly pattern visualization
- Alternative perspective finding
- AI-powered support
- Safe peer encouragement
- Private user mode
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毎日3分、ここに書いて気持ちを整える。 いいことも、いやなことも。ひとりでは消化しきれない。でも、友だちや家族には言いにくいこともある。SNSは刺激が多くて疲れる。U2plusは、認知行動療法に基づくセルフケアの場所です。 ■ たとえば、こんなふうに使われています ◆ 夜、寝る前に 「湯船にちゃんとつかれた」「定時で帰れた」。今日できたこと・楽しめたことを書きとめます。小さな「できた」が並んでいきます。 ◆ 書いたあとは、ボタンだけの反応 「いいね」「わたしも」「すごい」「おつかれ」。コメントもフォローもないので、返事を考えなくていい。否定的なリアクションはありません。 ◆ いやなことがあった日(セルフカウンセリング) 頭から離れない出来事を、状況・考え・気分に分けて書きます。AIが、考えのかたよりと別の見方を提案します。 ◆ 月に1度、ふりかえる(アセスメント) 落ち込むときの流れを、状況・気分と体調・考え・行動の4つの問いで書き出し、図にします。 ◆ 決めた時刻に、お知らせ 書く時間を決めておくと、毎日その時刻に通知が届きます。 ◆ 使いかたは、アプリの中のガイドで 認知行動療法の考えかたと3つの機能を、実際の画面つきで説明しています。 ■ 自分だけの記録にも 投稿ごとに「みんなに公開」か「自分だけ」を選べます(自分だけはスタンダードプラン)。 ■ 料金 最初の14日間は、すべての機能を無料で使えます。クレジットカードの登録は要りません。14日が過ぎると自動でフリープラン(¥0)に切り替わりますので、継続して利用する際は有料プランへ変更してください。 一般的なSNSとは異なり、U2plusは広告をだしていません。これからも穏やかな場所を続けていくために、みなさんに費用負担をお願いしています。 ・スタンダードプラン(月額¥980/年額¥9,600):投稿は無制限、自分だけ(非公開)の投稿、AIサポート ・ライトプラン(月額¥500/年額¥4,800):投稿は月15回まで、AIサポート ・フリープラン(¥0):投稿ができません。閲覧とリアクション 有料プランは自動更新のサブスクリプションです。お支払いはApple IDに請求され、期間終了の24時間前までに自動更新をオフにしない限り、同じ期間・同じ価格で更新されます。設定アプリのApple IDの「サブスクリプション」から管理・解約できます。 ■ 監修 小堀 修(監修)国際医療福祉大学 赤坂心理学科 准教授/臨床心理士・公認心理師 ■ 大切なお知らせ U2plusは治療やカウンセリングではなく、毎日のセルフケアのためのアプリです。診療・診断・投薬指導などの医療行為は行いません。心身の状態に不安があるときは、医療機関にご相談ください。 服薬内容や病歴など、具体的な要配慮個人情報の記入はおすすめしていません。 ■ 利用規約・プライバシーポリシー 利用規約:https://kaiju.company/u2plus-app/terms プライバシーポリシー:https://kaiju.company/u2plus-app/privacy 特定商取引法に基づく表記:https://kaiju.company/u2plus-app/scta
Samurai Mindfulness
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I used to be the kind of person who would replay a single comment in my head all day long. Someone says something in the morning -- maybe they didn't mean anything by it -- but I'd carry that weight until midnight. Replaying it over and over, ruining my entire day. I knew I was overthinking, but the feeling just wouldn't go away. Then I discovered a simple technique: write down what's bothering you on paper, and tear it up. I tried it -- and for the first time, the weight just lifted. The thing I'd been dragging around all day was suddenly gone. That's when I decided to turn this experience into an app. BACKED BY SCIENCE A 2024 study by Nagoya University (published in Scientific Reports) proved that writing down feelings of anger and physically discarding the paper -- by throwing it away or shredding it -- nearly eliminated the anger entirely. Research from Ohio State University also confirmed that physically discarding written negative thoughts significantly reduces their psychological impact. ZenBlade is built on this scientifically proven method. WHY A JAPANESE SWORD? In Japanese tradition, the katana is more than a weapon. For centuries, swords have been used in sacred rituals to ward off evil spirits and cut through misfortune. Shrine swords, purification ceremonies -- the katana has always carried the spiritual meaning of "severing what is harmful." There's no better symbol for cutting away the noise in your mind. TWO POWERFUL MODES PURIFY MODE -- Meikyou Shisui Stop carrying what's bothering you. Write it down, tag it with an emotion, and slash it away with your chosen katana. Watch your worries shatter with stunning visual effects and immersive sound -- the stress you've been dragging around all day, gone in one cut. Choose from 12 emotions: Sloth, Anxiety, Fear, Wrath, Gloom, Conflict, Envy, Lingering Feelings, Inferiority, Obsession, Regret, and Impatience. SWITCH MODE -- Shinki Itten Train your reflexes like a samurai. Targets appear on screen -- slash them as fast as you can. A dynamic meditation that sharpens focus and clears your mind through action. 9 LEGENDARY KATANAS Each sword has unique visuals and slash effects inspired by real Japanese legendary blades: - Kiyomitsu -- Pure White Flash (Free) - Masamune -- Supreme Blue Edge - Muramasa -- Cursed Purple Aura - Raikiri -- Thunder Strike - Mikazuki Munechika -- Elegant Gold Crescent - Dojigiri Yasutsuna -- Demon Slayer Red - Shokudaikiri Mitsutada -- Flame Blade - Tsurumaru Kuninaga -- Gale Wind White - Juzumaru Tsunetsugu -- Frozen Spirit Blade KEY FEATURES - 12 emotion tags to categorize and slash your worries - Rock Slash Mode -- enter mushin (no-mind) and cut through sacred stone - 9 beautiful Japanese-style backgrounds with ambient sounds (rain, birdsong, wind) - Adjustable training duration (1 min to unlimited) - All data stored locally on your device -- complete privacy protection ZENBLADE PRO (Premium) The free version includes core features. Upgrade to PRO with a single purchase to unlock everything -- forever. No subscriptions, no recurring charges. - All 9 legendary katanas - All 12 emotion tags - All 9 backgrounds and BGM - Rock Slash Mode - Extended training durations (3 min, 5 min, unlimited) PURCHASE INFORMATION ZenBlade PRO is a one-time in-app purchase. Buy once and enjoy all features permanently. This is NOT a subscription -- there are no recurring charges. - Payment will be charged to your Apple ID account at confirmation of purchase. - Use "Restore Purchases" to recover your purchase on a new device.
Screenshots
Verdict
The clearest difference is update cadence: U2plus at fortnightly against Samurai Mindfulness's every 2 months. Samurai Mindfulness's advantage is iOS requirement (13.0 vs 15.1). 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
Both are free to download. U2plus sells 4 in-app purchases, starting at $2.99 per month and Samurai Mindfulness sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
U2plus ships an update fortnightly, Samurai Mindfulness every 2 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | U2plus | Samurai Mindfulness |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 43 MB | 51 MB |
| Age rating | 17+ | 4+ |
| Developer | Kaiju Company | yuki okada |
In-app purchases
U2plus
- ライトプラン14 Days trial$2.991 Month
- スタンダードプラン14 Days trial$5.991 Month
- ライトプラン14 Days trial$29.991 Year
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- スタンダードプラン(年額)14 Days trial$59.991 Year
Samurai Mindfulness
- ZenBlade PRO$4.99









