Second Brain Joiner App Icon

Second Brain Joiner

Productivity • Hirofumi Inoue
4+ v1.1.3 Recorded price: $3.99 App Store →
🏆 Best: #11 Paid (JPN)
IPA Analysis
Technical Specs
Bundle ID com.HI-MET-Architect.SecondBrainJoiner
Version 1.1.3
App Store Size 11.44 MB
Minimum iOS 18.2
Devices iPhone, iPad, iPod touch
Catalog release date 2026-03-24
Latest recorded version date 2026-09-06
Features & Support
Advisory 4+
Languages (3)
EN, JA, ZH
Top In App Purchases
No In App Purchases Listed

Preview

Second Brain Joiner screenshot 1 Second Brain Joiner screenshot 2 Second Brain Joiner screenshot 3 Second Brain Joiner screenshot 4 Second Brain Joiner screenshot 5 Second Brain Joiner screenshot 6 Second Brain Joiner screenshot 7 Second Brain Joiner screenshot 8 Second Brain Joiner screenshot 9 Second Brain Joiner screenshot 10 Second Brain Joiner screenshot 11

Description

A professional-grade input optimization tool designed to push your AI's potential to the absolute limit. "Second Brain Joiner" is an application that seamlessly formats and merges your vast collection of Markdown files (your "Second Brain") stored on your device into a single context that AI can easily understand. While modern AI possesses incredible reasoning abilities, it doesn't know your "past context." However, blindly feeding it all your files isn't the solution either. If the amount of information exceeds the context window (the AI's memory limit), the AI becomes confused and generates "hallucinations" (plausible lies). This app was designed to solve that exact problem flawlessly. [Core Features & The Value of the PRO Spec] ◆ 1. Advanced Filtering (Enhancing Context Purity) You no longer need to give the AI "all your memories." By specifying tags or modification dates, you can smartly extract only the context relevant to the problem you want to solve right now. Eliminate noise and deliver 100% pure knowledge to your AI. ◆ 2. High-Precision Token Calculation & Smart Chunking Automatically splits (chunks) files into optimal sizes tailored to your AI's limits. Through highly accurate token estimation, even a massive vault with thousands of files can be processed without errors, dramatically improving the accuracy of your AI's responses. ◆ 3. Local-First Absolute Security Your thoughts belong to you alone. This app does not send data to external cloud servers; all merging and splitting processes are completed entirely within your device's local environment. You can securely process highly confidential business documents or personal diaries. ◆ 4. Folder Structure Maintenance & Timestamping It doesn't just connect text. It automatically inserts the original folder path and last modified date at the beginning of each file. This allows the AI to accurately grasp the timeline and hierarchical structure—"what project this is and when it was written"—before making advanced inferences. [Recommended for:] Prompt engineers and researchers who structure their daily knowledge using Markdown. Those who want to feed their past notes to AI to create a dedicated brainstorming and strategic partner. Those who demand the highest possible accuracy and minimal hallucinations from AI responses. Turn your "Second Brain" into the ultimate engine for your AI. Experience the breakthrough in intellectual productivity brought to you by H.I. MET ARCHITECT.

What's New

Version 1.1.3 2026-09-06
Fixed an issue where the app's supported languages (Japanese and Simplified Chinese) were not properly recognized on the App Store. Thank you for using Second B...Fixed an issue where the app's supported languages (Japanese and Simplified Chinese) were not properly recognized on the App Store. Thank you for using Second Brain Joiner. Feedback and suggestions are always welcome via review or support contact.

Technical Analysis

Package Overview Basic metadata
Bundle ID com.HI-MET-Architect.SecondBrainJoiner
Current Version 1.1.3
Minimum iOS 18.2
Package Size App Store Size
Package Metadata 1 / 4 version records
Detailed binary, privacy manifest, framework, and Info.plist results have not been indexed for this package yet. The verified App Store and archive metadata above remains available.

Known Version Records

1 version record with stored package metadata • 4 known version records

Stored metadata does not guarantee a package is currently available to download.

Details Version / IDs Version date Action
Second Brain Joiner icon
11.41 MB
v1.1.2
App Store ID: 885475433Build: 1.1.2
2026-05-10 08:35:00 Paid / Arcade
Second Brain Joiner icon
Not archived
App Store ID: 885306598 Unknown Paid / Arcade
Second Brain Joiner icon
Not archived
App Store ID: 885263605 Unknown Paid / Arcade
Second Brain Joiner icon
Not archived
App Store ID: 883564412 Unknown Paid / Arcade