Retro N vs ゆるN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Retro N
Engage in retro-style brain training that makes the N-back task enjoyable. Improve memory, focus, and emotional control through a superhero-themed game. Suitable for all ages, it offers a free, ad-supported experience with optional in-app purchases.
- Retro 8-bit N-back gameplay
- Improves memory and focus
- Superhero Ranger theme
- Up to 3 players on one device
- No login or personal data collection
- Minimal ads, child-safe
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Retro-style 8-bit brain training that makes N-back fun. Improve memory, focus, and emotional control while playing. “Level 10 is insane!” A surprisingly deep N-back challenge that kids and adults can enjoy for free. 【What Makes This App Different】 ・The only N-back app themed with Retro Game × Superhero Rangers ・All 15 stages completely free (optional tip only) ・Up to 3 players on one device (great for kids, siblings, parents) ・No login, no email, no personal data collected ・Minimal ads, safe for children ・Simple controls anyone can learn instantly 【Player Reviews】 ・“Hard even for adults until you get used to it. The retro RPG-style intro feels exciting.” ・“Surprisingly challenging, but you can feel it working. Finding the rhythm is fun.” ・“I almost gave up at Level 6, but finally cleared it after sticking with it.” 【Does Any of This Sound Familiar?】 ・You forget things more easily ・You struggle to stay focused ・You get irritated without meaning to ・Your thinking feels slower ・You want your smartphone time to be more meaningful This app turns the scientifically studied N-back task into a retro game you can naturally keep playing. 【Recommended For】 ・Anyone who wants to improve emotional control ・People seeking better focus and memory ・Fans of nostalgic retro games ・Those who struggled with other training methods ・Anyone wanting stress relief ・Parents looking for an educational game for kids 【What Is the N-Back Task?】 Introduced by Kirchner in 1958, the N-back method strengthens working memory by recalling information from “N steps earlier” while making quick decisions. Abilities expected to improve include: ・Memory ・Focus and sustained attention ・Judgment ・Emotional regulation Working memory is the mental “workbench” essential for learning, productivity, and daily life. 【Training Design of Memory Rangers】 ・Level 1 starts with remembering one step back (beginner-friendly) ・Difficulty gradually increases across 15 stages ・Level 10 is famously tough for those seeking a challenge ・Retro RPG-style presentation keeps the journey engaging Simple to play, yet you will feel real cognitive challenge as you progress. 【Fun for Families】 One device supports up to 3 profiles, allowing: ・Siblings to compete ・Parents and children to challenge each other ・Friends to enjoy the training together 【Message from the Developer】 N-back is effective but mentally demanding, and many people struggle to keep it going. Still, I believed there were people who wanted to improve emotional balance, focus, and daily well-being. I wanted to create an experience where “you were enjoying a game… and before you knew it, your brain had improved.” That is why I combined the excitement of superhero teams with the warmth of retro games, creating a training method anyone—kids or adults—can continue without stress. If this app brings even a little more calm, focus, or happiness to your daily life, nothing would make me happier. Start your retro brain-training journey today.
ゆるN
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【ゆるN-Back】は、「脳トレに興味はあるけれど続かない」忙しい社会人のための、1日3分で完結するMENSA会員監修のN-Back脳トレアプリです。 ■ アプリの特徴 ・1日3分を想定した短時間セッション設計 ・2-Backに特化したMENSA式ワーキングメモリトレーニング ・かんたん/ふつう/むずかしいの3つの難易度(N値はすべて2で共通) ・インターバル速度だけで難易度が変わるので、ルールを覚え直す必要なし ・1セッション25試行で、サクッと集中して終えられる構成 ・結果画面で正答率と「鍛えた力(ワーキングメモリ)」をフィードバック ・ノルマ達成/Good/Perfectの3段階で、やさしく継続を後押し ■ ゲーム内容 ・3×3グリッド上で光る位置を記憶するシングルN-Back(視覚・位置) ・2つ前と同じ位置が出たときだけ「同じ」ボタンをタップ ・ターゲットは全25試行中およそ5回(約20%) ・刺激提示時間やインターバルは難易度に応じて調整し、約30〜75秒で1セッションが終了します ■ 続けやすさの工夫 ・ホーム画面から「難易度を選ぶ→スタート」の2タップで即プレイ開始 ・1日1〜3セッションを目安にした「3分だけ」の設計 ・連続日数は控えめに表示し、プレッシャーにならないよう配慮 ・「今日の3分、クリア!」「大丈夫、こういう日もあるよ」など、やさしいトーンのメッセージで結果をフィードバック ・サボっても「おかえりなさい。今日は3分だけやってみる?」と再開を歓迎 ■ こんな人におすすめ ・勉強や仕事前に、頭のウォームアップをしたい ・通勤・待ち時間を、ちょっと有意義な時間に変えたい ・ガチガチのスコア競争より、マイペースで脳トレを続けたい ・N-Backに興味はあるが、難しそうで手を出していなかった ■ 安心して使える設計 ・ユーザートラッキングなし ・データ収集なし(プレイデータは端末内にローカル保存) ゆるく、でも中身はしっかり。 毎日の3分で、ワーキングメモリを少しずつ鍛えてみませんか。
Screenshots
Verdict
The clearest difference is in-app purchases: ゆるN at none against Retro N's 4. ゆるN also leads on ads (none vs shown). Retro N's advantage is iOS requirement (13.0 vs 15.1). On price 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. Retro N sells 4 one-off in-app purchases. ゆるN asks for nothing beyond the download.
| Parameter | Retro N | ゆるN |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 8 months | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 74 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | TELULU LLC | Motohiro Fujita |
In-app purchases
Retro N
- Support for this app (100)$0.49
- Remove Ads$2.99
- Support for this app (500)$2.99
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- Support for this app (1000)$5.99
ゆるN
No in-app purchases








