OPUS offers an immersive narrative-driven adventure game experience on mobile devices. It is catalogued under Adventure, RPG & story on PulseGate.

OPUS is a consumer product built for visual novel and adventure game fans.

Is OPUS still maintained?

Unverified. OPUS has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to OPUS?

Similar projects tracked by PulseGate include OPUS, OPUS, and AdAstra - 向着星辰‑App.

OPUS is developed by SIGONO INC., based in the United States.

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OPUS

Name: OPUS
Price: 8.99 USD
Author: SIGONO INC.

App StoreAdventure, RPG & story🇺🇸

OPUS: Echo of Starsong is a visual novel-style adventure game featuring a rich narrative, voice acting, and exploration in a sci-fi universe. Players follow the journey of Jun and Eda as they uncover mysteries and experience emotional storytelling.

PaidiOS

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Overview

4 features

OPUS sits in PulseGate's Adventure, RPG & story category. It offers an immersive narrative-driven adventure game experience on mobile devices. OPUS is a consumer product aimed at visual novel and adventure game fans. Pricing is paid, from $8.99. OPUS is available on iOS.

Behind OPUS is SIGONO INC., based in the United States, and it first shipped in 2022. Among its 4 catalogued features are visual novel, story-driven gameplay, and voice acting. The interface is available in English and Japanese.

Visual novel
Story-driven gameplay
Voice acting
Adventure exploration

Built with & integrations

Runs on

iOS

Trust & compliance

Verified signals

HTTPSMulti-languageStore-verified publisher

Indexing history

What PulseGate has recorded for this listing

Indexed27 Jun · 10:29 UTC
Listing verified against its public source
Source: PulseGate · Open

Frequently asked questions about OPUS

What does OPUS do?: OPUS offers an immersive narrative-driven adventure game experience on mobile devices. It is catalogued under Adventure, RPG & story on PulseGate.
Who is OPUS for?: OPUS is a consumer product built for visual novel and adventure game fans.
How much does OPUS cost?: Paid plans start at $8.99.
What platforms does OPUS run on?: OPUS runs on iOS.
Is OPUS still maintained?: Unverified. OPUS has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to OPUS?: Similar projects tracked by PulseGate include OPUS, OPUS, and AdAstra - 向着星辰‑App.OPUS OPUS AdAstra - 向着星辰‑App
Who makes OPUS?: OPUS is developed by SIGONO INC., based in the United States.
When did OPUS launch?: OPUS first shipped in 2022.

At a glance

Platforms: Mobile
Languages: English, Japanese
Built for: visual novel and adventure game fans
Model: B2C
Solves: Offers an immersive narrative-driven adventure game experience on mobile devices.

Registered as

App Store: 1604771334

Developer

🇺🇸SIGONO INC.

Index record

Identity confidence: High · 90
Indexed: 27 Jun 2026
Lifecycle: Alive
Last seen: 27 Jun 2026

Identity audit (12)

Slug: opus-echo-of-starsong-apple-com
Lifecycle last checked: 8 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 27 Jun 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Recorded source: taxonomy-pass-a.
Summary from: Taken from the project's own store listing.
Languages from: Detected by a language model from page content.
Canonical URL: https://apps.apple.com/app/id1604771334

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