Appworthy

RPG Offline: OS Core Quest

Turn-Based Cyber Roguelite RPG

Hai Nam Trinh
Download on theApp Store
App Store rating4.6★59 ratings
PriceFreeIn-app $0.99–$3.99
Age4+Store age rating
Size25 MBiPhone download
CategoryGames
DeveloperHai Nam Trinh

What we found

Full report

Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.

Money

  • Free to download · in-app purchases $0.99–$3.99 (2 listed). The store doesn’t say how often these bill.
  • If you subscribe through the store, cancel in iPhone Settings → your name → Subscriptions. Deleting the app doesn’t cancel a subscription.

Not yet tested.

The store currently lists version 25, updated 2026-09-23.

Preview

Screenshot 1Screenshot 2Screenshot 3Screenshot 4Screenshot 5Screenshot 6Screenshot 7Screenshot 8

Store screenshots supplied by the developer.

About this app

RPG Offline: OS Core Quest (Just a game — no IT knowledge required)

▶ You are a modern-day white-hat hacker

After countless sleepless nights, you collapse from exhaustion and fall asleep on your keyboard… then wake up in the year 2150!!!

You are trapped inside a collapsing digital world.

The Core System — the heart of this entire networked world — has been shattered into fragments after a mysterious catastrophe. Rogue viruses, corrupted AI, and mutated data entities are taking over every region of the digital OS.

As the last Restorer Hero, you must explore broken OS zones, collect the lost Core Fragments, and restore the system before the entire digital world is erased forever.

Uncover the truth behind this collapsing world, discover why you were brought here — and unlock hidden endings shaped by how you survive.…

From the developer’s store description.

For developers and the curious

The full report

The evidence, sources, measurements and versions behind every label above.

Findings and evidence

Not yet tested
Not yet tested. No analysis has been published for this app. A missing label is not a clean bill of health.

What reviewers report

No review coverage

No review analysis published for this app.

Measurements

3 measured · 5 not assessed

“Not assessed” means we could not measure it. It is never a zero and never a pass.

From store data and reviews

Developer replies to reviews
Not assessed
Fewer than 50 reviews scanned — too few to state a rate
Price in the store description
The store description doesn’t list prices (most don’t)
Cancelling, in the store description
The store description doesn’t say how to cancel (most don’t)
Themes reported by reviewers
Not assessed
This app's reviews have not been assessed yet
Five-star share of ratings
80–89% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.

In the app package we scanned

No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.

Sensitive permissions
Not assessed
No package has been scanned for this app
Analytics or tracking SDKs in the scanned package
Not assessed
No package has been scanned for this app
Advertising SDKs in the scanned package
Not assessed
No package has been scanned for this app
How we know

Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured

Versions and dates analysed

Not yet tested

Not yet tested. No analysis has been run for this app, so there is no version or date to report.

Store update history

Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.

App Store

Version 25 · 2026-09-23
▶ New Chip Slot System. Equip up to 2 chips to customize your build, boost key stats, and enhance special effects. ▶ VoiceOver Accessibility Added. Map exploration, battles, rewards, and key game screens now support VoiceOver. ▶ Added COPY and REPAIR Protocols. Copy enemy routines, PASTE them once in battle, and convert EN into HP once per battle. ▶ Added TERMINAL System and Hidden Ending. Explore logs, scan data, uncover secrets, and discover the truth behind the Core Fragments. ▶ Added HERO Keyboard Progression and BESTIARY Collection. Unlock permanent upgrades, hunt enemies, collect monster cards, and keep your collection progress across New Games. ▶ Reduced Interstitial Ad Frequency.…

Shortened here; the full notes are on the store listing.

Assessment record

Status
Not yet tested
App identifier
rpg-offline
Sources used
None recorded
Reviews read
None recorded
Package examined
No package scan
Human inspection
Not completed
How we know
Measurement vocabulary
1.4

Store facts

App Store

What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.

App Store

Store rating
4.64 ★ · 59 ratings
Version
25
Updated
23 Sep 2026
Price
Free · In-app purchases
Age rating
4+
Size
25 MB
Open in App Store
Developer
Hai Nam Trinh
Category
Games
Listing price
Free · In-app purchases

Purchases the store lists

 What this app sells

From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.

One-off packs1
Recovery PackPack$0.99
Show 1 more purchase we couldn’t categorise

These are really on sale; we just can’t tell from the name whether they recur.

Unlock PremiumTerm not stated$3.99

Method and limits

What this report can and cannot show

What a missing label means

Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.

Limits of this report

  • A package scan is static. It identifies code and text in one Android build. It does not measure a live ad session, test a deletion request, or count the steps needed to cancel.
  • Reviews keep their sample. A review-only charge shows distinct reviewers, the share and the sample size, and is published only once it clears that label’s published threshold. Calibration labels are machine-drafted and not yet confirmed by a person.
  • Not assessed is a state. It is never a zero and never a pass.
  • A missing label is not a clean bill of health. It means the evidence did not support one, not that the app is problem-free.
Not yet human-reviewed. A human review gives an app hands-on, recorded measurements. None has been run for this app. Hands-on inspections are not yet open.
Review thresholds Read the methodology For developers

Request a correction

[email protected]

Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.

Report a factual error — free Email a correction