# Zero Substrate: Cyber Thriller — A case file you investigate

> A case file you investigate (iPhone/iPad app by DRO1D LABS LIMITED.)

- Source: https://appshunter.io/ios/app/zero-substrate-cyber-thriller/id6757567996 (this page in markdown: same URL + `.md`)
- Developer: [DRO1D LABS LIMITED](https://appshunter.io/developer/1803083780)
- Category: Books, Entertainment
- Price: Free with in-app purchases (on sale, was $3.99)
- Age rating: 12+
- Requires: iOS 17.6 · 14 MB
- Languages: American English, Japanese
- Released: 2026-03-03
- Data updated: 2026-09-06
- User reviews in markdown: https://appshunter.io/ios/app/zero-substrate-cyber-thriller/id6757567996/reviews.md

## What is Zero Substrate?

The arterial spray hit the wall at forty-seven degrees. Not forty-five. Not fifty. Exactly forty-seven, like someone calculated the trajectory with software before swinging.

A body on the floor of a Substrate BioLabs executive. One set of DNA. Three living people, all with alibis, all claiming they have never met. The lab ran it three times. Same result each time.

Zero Substrate is a forensic thriller told the way a case lands on your desk. Twelve chapters of first-person investigation, built as a case file rather than a novel: classified memos, DNA trace reports, chain-of-custody logs, intercepted audio, witness testimony. The documents are not illustrations of the story. They are the story.

THE INVESTIGATION

Evidence unlocks as you read. Reach the moment in the text where something surfaces and it lands in your Evidence Vault, where you can examine it properly and return to it later. The vault fills as the case does. By the end you are holding everything the investigator was holding, and you know exactly when each piece arrived.

BUILT FOR READING

A reader designed for long sessions in the dark. Three text sizes, a dim mode for night, bookmarks that hold your place mid-sentence, and progress tracked per chapter. Reading statistics if you want them, out of the way if you do not.

WHAT IS INSIDE

- Twelve connected chapters, a single continuous case
- An Evidence Vault that fills as you read
- Case files, forensic reports, transcripts and recordings
- Bookmarks, per-chapter progress and reading statistics
- Full Japanese translation
- Completely offline

CHAPTER ONE IS FREE

Read the first chapter, all of it, before deciding. Unlocking the remaining eleven is a single purchase. No subscription, no second unlock, no advertising, no accounts.

PRIVACY

Nothing is collected. No analytics, no tracking, no sign-in. Your progress, bookmarks and evidence stay on your device and go nowhere else. The app works with the network off.

Twenty years before VOID, this is where it started.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock All Chapters | $4.99 | one-time |



## Version history (last 5 releases)

### 1.1.7 — 2026-07-29

- Sharper reading statistics: your time in the case file is now tracked exactly
- Evidence arrives more reliably, so nothing is missed on the way through a chapter
- Smoother, lighter reader over long sessions
- Better VoiceOver support throughout the reader and settings
- Refinements to the Japanese translation

### 1.1.6 — 2026-06-12

Faster Performance: Optimized core routines for snappier navigation and zero friction.
Upgraded Premium Access: A redesigned, clearer paywall experience for unlocking full features.

### 1.1.5 — 2026-06-11

-New Pricing Model: ZERO SUBSTRATE is now free to download! Begin the investigation and experience the entirety of Chapter 1 at no cost.

-Lifetime Unlock: Enjoying the case? Access all 12 chapters, the complete evidence vault, analytical stats, and case files via a single, one-time lifetime In-App Purchase. No subscriptions, ever.

-UI & Performance Tweaks: Minor terminal interface enhancements and performance optimization for a smoother investigative experience.

### 1.1.4 — 2026-06-04

- Improved reading experience with scroll position tracking, extended idle timeout, and refined activity logging. 
- Enhanced chapter navigation with bookmark management and certificate sharing. 
- Performance optimizations throughout.

### 1.1.3 — 2026-03-05

- Interactive guide for new users explaining evidence, chapters, and stats
- Improved first-launch experience with helpful tooltips
- Minor bug fixes and performance improvements

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All apps by DRO1D LABS LIMITED: https://appshunter.io/developer/1803083780

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*