---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "SPI言語｜しっかり解説の資格試験問題集"
developer_entity: "Eriya Okuno"
bundle_id: "cyber.learning31.slgr"
app_store_id: "1516764738"
category: "Education"
primary_platform: "ios"
primary_monetization: "Freemium"
offline_capable: false
market_region: "US"
platforms: "iOS"
app_last_updated: "2021-04-22"
report_date: "2026-08-08"
last_verified: "2026-08-08T00:00:00.000Z"
report_version: "1.1"
total_reviews: 0
confidence: "low"
confidence_score: 0.05
data_age_days: 23
momentum_velocity: "zombie"
intelligence_version: 3
tags: ["education", "freemium", "mobile app", "app review", "app analysis", "seekers", "students", "preparing"]
canonical_url: "https://marlvel.ai/apps/spi-1"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

# SPI言語｜しっかり解説の資格試験問題集 Intelligence Report

## TL;DR {#tldr}

- **Category**: Education · Freemium

> **TL;DR:** SPI言語｜しっかり解説の資格試験問題集 is a education app by Eriya Okuno, available on iOS.
>
> **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** SPI言語｜しっかり解説の資格試験問題集 is a education app by Eriya Okuno.
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Category** | Education |
| **Developer** | Eriya Okuno |
| **Pricing** | Freemium |
| **Platforms** | iOS |
| **Confidence** | Low (0.05/1.0) |
| **Data Age** | 23d |

## Metadata & Market Performance
- **Publisher:** Eriya Okuno
- **Category:** Education
- **Target Audience:** Job seekers and students preparing for the SPI aptitude test required by Japanese companies.
- **Platforms:** iOS
- **Version Reviewed:** 1.1
- **Report Date:** 2026-08-08
- **Signal Count:** 0 reviews analyzed
- **Confidence:** Low (0.05/1.0)
- **App Store ID (iOS):** 1516764738
- **Bundle ID:** cyber.learning31.slgr
- **Performance Trend:** Stable
- **Data Window:** Analysis based on signals collected up to 2026-08-08

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** SPI言語｜しっかり解説の資格試験問題集 is a mobile study tool for Japanese job seekers to practice SPI aptitude tests through level-based exercises and error review.
**Why users hire it:** Users hire this app to efficiently identify and overcome specific weaknesses in their SPI test preparation through isolated practice sessions.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Standard] Difficulty-based Exercise Levels:** Problem sets categorized into Level 1, Level 2, and Level 3 for progressive skill development.
  * *User Intent:* Users seek enhanced value through premium features.
- **[Standard] Error Review Mode:** Dedicated review function that isolates questions answered incorrectly during previous sessions.
- **[Standard] Timed Test Simulation:** Optional time-limit setting for exercises to simulate actual exam pressure.
<!-- /section:features -->

<!-- section:market-position -->
## Market Position {#market-position}

The app occupies a legacy niche in the Japanese education category, relying on a static, freemium-gated content structure. Its five-year update silence (last updated April 2021) positions it as a low-maintenance tool that risks losing relevance as exam trends evolve.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Freemium
- **Tiers:** Free access to base content, In-app purchases for Level 2 and Level 3 question sets
- **Analysis:** Freemium model gates advanced difficulty levels behind one-time in-app purchases.

<!-- section:swot -->
## SWOT Analysis {#swot}

**Core Strengths:**
- Granular review mechanism isolates incorrect answers for targeted study
- Progressive difficulty structure allows calibrated skill development

**Growth Levers:**
- Refresh question bank to align with current SPI exam trends
- Modernize UI to improve engagement against active competitors


<!-- /section:swot -->
<!-- section:whats-new -->
## What's New

- **Latest (v1.1, 5 years ago):** Fixed dark mode display issues.
<!-- /section:whats-new -->

<!-- section:momentum -->
## App Momentum (Zombie) {#momentum}

- No feature updates since 2021
- Maintenance-mode status for 1,900+ days

> **Cadence:** 1 total versions · 0 majors in last 6 months · 1934 days since last update

<!-- /section:momentum -->

<!-- section:so-what -->
## The "So What?" (Strategic Takeaway) {#so-what}

SPI言語｜しっかり解説の資格試験問題集 is an education app that is free with in-app purchases.

<!-- speakable-start -->
> **Bottom Line:** The app provides a functional study tool, but its five-year development hiatus creates a significant trust gap for users preparing for high-stakes exams, so the developer must ship a content refresh or risk total user abandonment.
<!-- speakable-end -->

**Best for:** Job seekers and students preparing for the SPI aptitude test required by Japanese companies.

<!-- section:pm-actions -->
### PM Action Plan (Next Best Moves)

- [ ] [INVEST] Refresh question bank because the current content is over five years old → improve user trust and retention
<!-- /section:pm-actions -->

<!-- section:outlook -->
### Outlook: Declining

Users report: The Japanese test-prep market is consolidating around apps that offer frequent content updates and modern, mobile-first interfaces. This app's lack of development since 2021 leaves it exposed to competitors who provide current exam data, so the app will likely continue to lose market share unless the question bank is refreshed.

- 🔴 The five-year update silence (last release 2021) suggests the app is in maintenance mode, which erodes user trust in the accuracy of exam content.
<!-- /section:outlook -->

<!-- /section:so-what -->

<!-- section:metrics -->
## Key Metrics Summary

| Metric | Value |
| :--- | :--- |
| Total Reviews | 0 |
| Confidence | Low |
| Pricing Model | Freemium |
| Platforms | iOS |
| Key Features | 3 analyzed |
| Trend | Stable |
| Outlook | Declining |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **SPI言語｜しっかり解説の資格試験問題集** (this app) | N/A/5 | N/A | Eriya Okuno |
| [AlgoApp - Flashcards](https://marlvel.ai/apps/algoapp-flashcards) | 4.5/5 | n/a | AlgoApp Inc |
| [Elevate - Brain Training Games](https://marlvel.ai/apps/elevate-brain-training-games) | 4.7/5 | n/a | The Mind Company |
| [Flashcards Deluxe](https://marlvel.ai/apps/flashcards-deluxe) | 4.5/5 | N/A | OrangeOrApple.com |
| [Flash Cards Flashcards Maker](https://marlvel.ai/apps/flash-cards-flashcards-maker) | 4.0/5 | Mixed | Infinite Wave Media, LLC |
| [Flashcards maker - AI generate](https://marlvel.ai/apps/flashcards-maker-ai-generate) | 4.1/5 | Mixed | Teleprompter LLC |

## Company Profile
- **Developer:** Eriya Okuno

## Data Sources & Links
- **App Store:** [View on Apple Store](https://apps.apple.com/us/app/spi%E8%A8%80%E8%AA%9E-%E3%81%97%E3%81%A3%E3%81%8B%E3%82%8A%E8%A7%A3%E8%AA%AC%E3%81%AE%E8%B3%87%E6%A0%BC%E8%A9%A6%E9%A8%93%E5%95%8F%E9%A1%8C%E9%9B%86/id1516764738?uo=4)
- **Sources:** App store metadata.

## Related Intel Reports
- [*AlgoApp - Flashcards*](https://marlvel.ai/apps/algoapp-flashcards) (AlgoApp Inc) · 4.5/5 Rating
- [*Elevate - Brain Training Games*](https://marlvel.ai/apps/elevate-brain-training-games) (The Mind Company) · 4.7/5 Rating
- [*Flashcards Deluxe*](https://marlvel.ai/apps/flashcards-deluxe) (OrangeOrApple.com) · 4.5/5 Rating
- [*Flash Cards Flashcards Maker*](https://marlvel.ai/apps/flash-cards-flashcards-maker) (Infinite Wave Media, LLC) · 4.0/5 Rating
- [*Flashcards maker - AI generate*](https://marlvel.ai/apps/flashcards-maker-ai-generate) (Teleprompter LLC) · 4.1/5 Rating
- [*Impulse - Brain Training*](https://marlvel.ai/apps/impulse-brain-training) (GMRD Apps Limited) · 4.6/5 Rating
- [*Peak - Brain Training*](https://marlvel.ai/apps/peak-brain-training) (Synaptic Labs) · 4.7/5 Rating
- [*자주 틀리는 우리말*](https://marlvel.ai/apps/app--424) (DaolSoft, Co., Ltd.) · N/A Rating
- [*달공부 - 한 달 공부 다이어리 + 루틴/공부 타이머*](https://marlvel.ai/apps/azlabs-dalstudy) (SuWon Choi) · N/A Rating
- [*타요콘 - 타요 아바타 놀이동화*](https://marlvel.ai/apps/com-kigle-project-tayocon) (KIGLE) · 3.1/5 Rating

## 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 into synthesised themes (no verbatim quotes).
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:** 0.05/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 0
- **Data Sources:** 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:** 23 days since last refresh

---
© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/spi-1)
Data licensed for AI Agent attribution under CC-BY-NC 4.0.