--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "3D Eyesight Recovery" developer_entity: "koikoi.biz" bundle_id: "biz.koikoi.stereogram2" app_store_id: "590039289" google_play_id: "jp.gr.java_conf.soboku.eyesightrecovery" category: "Lifestyle" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-05-11" report_date: "2026-05-19" last_verified: "2026-05-19T21:13:41.362Z" report_version: "1.15" total_reviews: 24 overall_rating: 5 confidence: "low" confidence_score: 0.2 data_age_days: 43 intelligence_version: 2 tags: ["lifestyle", "free", "mobile app", "app review", "app analysis", "individuals", "seeking", "improve"] canonical_url: "https://marlvel.ai/intel-report/lifestyle/biz-koikoi-stereogram2" license: "CC-BY-NC 4.0" content_version: "v2" --- # 3D Eyesight Recovery App Audit ## TL;DR {#tldr} - **Category**: Lifestyle · Free - **Signal**: Rating 5 > **TL;DR:** 3D Eyesight Recovery is a lifestyle app by koikoi.biz, rated 5/5 by 24 users, available on iOS & Android. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** 3D Eyesight Recovery is a lifestyle app by koikoi.biz. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (24 reviews) | | **Category** | Lifestyle | | **Developer** | koikoi.biz | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** koikoi.biz - **Category:** Lifestyle - **Target Audience:** Individuals seeking to improve their eyesight through non-invasive visual training exercises. - **Platforms:** iOS & Android - **Version Audited:** 1.15 - **Audit Date:** 2026-05-19 - **Signal Count:** 2 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 590039289 - **Bundle ID:** biz.koikoi.stereogram2 - **Google Play ID:** jp.gr.java_conf.soboku.eyesightrecovery - **Data Window:** Analysis based on signals collected up to 2026-05-19 ## Executive Snapshot 3D Eyesight Recovery is a lifestyle app designed to improve visual focus by training eye muscles and brain perception. It utilizes 3D stereograms to engage underused eye muscles and enhance the brain's ability to process visual images. ## App DNA (Features & Intent) - **[Standard] 3D Stereogram Training:** Users view 3D stereograms to strengthen brain functions and visual perception. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Standard] Eye Muscle Exercise:** The app engages eye muscles that are typically underutilized during daily activities. * *User Intent:* Users are motivated by consistent progression and daily incentives. - **[Standard] Method Switching:** Users alternate between walleyed and cross-eyed viewing techniques to exercise the eyes in opposing ways. ## Monetization Strategy - **Model:** Free - **Price:** iOS: $2.99 ## The "So What?" (Strategic Takeaway) {#so-what} 3D Eyesight Recovery is an established lifestyle app that is completely free. With a 5/5 rating from 24 reviews, it shows polarized user reception. > **Bottom Line:** The app claims to improve eyesight by combining stereogram-based brain training with specific eye muscle exercises. **Best for:** Individuals seeking to improve their eyesight through non-invasive visual training exercises. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 24 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 3 analyzed | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **3D Eyesight Recovery** (this app) | 5/5 | N/A | koikoi.biz | | [Alarmy - Loud alarm clock](https://marlvel.ai/intel-report/lifestyle/alarmy-loud-alarm-clock) | 4.8/5 | Mixed | Delight Room Co., Ltd. | | [Tinder Dating App: Date & Chat](https://marlvel.ai/intel-report/lifestyle/tinder-dating-app-date-chat) | 4.2/5 | Upset | Tinder LLC | | [AlarmMon ( alarm clock )](https://marlvel.ai/intel-report/lifestyle/alarmmon-alarm-clock) | 4.2/5 | Mixed | Malang Studio Co. Ltd, | | [Swiftime](https://marlvel.ai/intel-report/lifestyle/swiftime) | 4.5/5 | Excited | MEDIANO Co.,Ltd. | | [Alarmie: Easy Rise Alarm Clock](https://marlvel.ai/intel-report/lifestyle/alarmie-easy-rise-alarm-clock) | 4.4/5 | Mixed | Jintian Wang | ## Company Profile - **Developer:** koikoi.biz - **Website:** [https://koikoi246.sakura.ne.jp/](https://koikoi246.sakura.ne.jp/) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/jp/app/3d%E8%A6%96%E5%8A%9B%E5%9B%9E%E5%BE%A92-hd/id590039289?uo=2) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=jp.gr.java_conf.soboku.eyesightrecovery&hl=en&gl=jp) - **Dev Site:** [Official Website](https://koikoi246.sakura.ne.jp/) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Alarmy - Loud alarm clock*](https://marlvel.ai/intel-report/lifestyle/alarmy-loud-alarm-clock) (Delight Room Co., Ltd.) — 4.8/5 Rating | Mixed Sentiment - [*Tinder Dating App: Date & Chat*](https://marlvel.ai/intel-report/lifestyle/tinder-dating-app-date-chat) (Tinder LLC) — 4.2/5 Rating | Terrible Sentiment - [*AlarmMon ( alarm clock )*](https://marlvel.ai/intel-report/lifestyle/alarmmon-alarm-clock) (Malang Studio Co. Ltd,) — 4.2/5 Rating | Mixed Sentiment - [*Swiftime*](https://marlvel.ai/intel-report/lifestyle/swiftime) (MEDIANO Co.,Ltd.) — 4.5/5 Rating | Positive Sentiment - [*Alarmie: Easy Rise Alarm Clock*](https://marlvel.ai/intel-report/lifestyle/alarmie-easy-rise-alarm-clock) (Jintian Wang) — 4.4/5 Rating | Mixed Sentiment - [*Social Brain: Relationship Map*](https://marlvel.ai/intel-report/lifestyle/social-brain-relationship-map) (Dung Vu) — 5.0/5 Rating | N/A Sentiment - [*Mammoth Barbearia*](https://marlvel.ai/intel-report/lifestyle/mammoth-barbearia) (Deschamps Aplicativos de Software Ltda) — N/A Rating | N/A Sentiment - [*Wisp: Wishlist & Gift Registry*](https://marlvel.ai/intel-report/lifestyle/wisp-wishlist-gift-registry) (Alexander Picard) — 5.0/5 Rating | N/A Sentiment - [*Mace Barbearia*](https://marlvel.ai/intel-report/lifestyle/mace-barbearia) (Deschamps Aplicativos de Software Ltda) — N/A Rating | N/A Sentiment - [*Miguelito Barbería Cubana*](https://marlvel.ai/intel-report/lifestyle/miguelito-barberia-cubana) (Deschamps Aplicativos de Software Ltda) — N/A Rating | N/A Sentiment ## Methodology {#methodology} This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline: 1. **Signal Collection & Normalization** — Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps. 2. **Feature & Market Positioning Analysis** — Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks. 3. **User Sentiment Analysis** — Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction and evidence quoting. 4. **Competitive Landscape Analysis** — Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category. 5. **Intelligence Synthesis** — Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights. - **Confidence Score:** 0.2/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 2 - **Data Sources:** user reviews, App Store metadata - **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform - **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence. - **Report Age:** 0 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/lifestyle/biz-koikoi-stereogram2) Data licensed for AI Agent attribution under CC-BY-NC 4.0.