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OGM

ogm.sefir.dev

From $0.67/mo Free plan macOSiOSAndroid
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Spec score 8.7 #2 of 20 in Interactive Game Maps

What it is

OGM is an unofficial fan-made app for browsing interactive maps of game worlds; it is a map tool, not a game. Its library brings together dozens of maps and adds worlds regularly. After maps are downloaded, they and core data work offline, but network access is needed for new or updated maps and for initially loading location screenshots. Players can keep separate profiles for different playthroughs, track progress by region, and create unlimited tracking categories, notes, and markers with names, descriptions, icons, and colors. Saved filter presets can be switched with one touch, and the interface is translated into 12 languages. An account can automatically sync progress to Firebase; registration is optional, and OGM Hub offers offline export and import. Without cloud sync or a manual export, uninstalling permanently deletes progress. The free plan is ad-supported; paid plans remove ads. OGM is available on Android, iOS, and macOS.

Spec sheet

What it does
OGM is an unofficial fan-made companion that combines interactive maps for game worlds with offline progress tracking.Read 15 Oct 2026 · ogm.sefir.dev
Purpose
OGM is an unofficial fan-made app providing interactive offline maps for game worlds and is not a game.Read 1 Oct 2026 · ogm.sefir.dev
Support
Support contact details listed by the maker are [email protected] and +38 (063) 388 788 4.Read 15 Oct 2026 · ogm.sefir.dev
Headquarters
Kyiv, UkraineRead 28 Sep 2026 · ogm.sefir.dev
Account optional
An account is optional, and OGM Hub supports offline Export/Import to transfer progress without registering.Read 1 Oct 2026 · ogm.sefir.dev
API and SDK documentation
The opened official pages describe the mobile apps and user features but provide no public API or SDK documentation.Read 15 Oct 2026 · ogm.sefir.dev
Apple compatibility
The App Store listing requires iOS 15 or later and supports macOS 12 or later on Macs with an Apple M1 chip or later.Read 1 Oct 2026 · apps.apple.com
Cloud sync
Account holders can synchronize progress through Firebase servers, while account use is optional.Read 15 Oct 2026 · ogm.sefir.dev
Community suggestions
Each map includes a form for suggesting missing locations for later verification.Read 15 Oct 2026 · ogm.sefir.dev
Complaint: premium restoration
An Apple reviewer said previously purchased premium content did not restore after moving from an older standalone app to the new app.Read 15 Oct 2026 · apps.apple.com
Custom markers
Users can add unlimited markers with titles, descriptions, icons, colors and notes.Read 15 Oct 2026 · ogm.sefir.dev
Data-loss limit
Progress is permanently lost after uninstalling if the user has neither cloud sync nor an export file.Read 15 Oct 2026 · ogm.sefir.dev
Filter presets
Custom combinations of map filters can be saved and switched with one touch.Read 15 Oct 2026 · ogm.sefir.dev
Filters
The app supports saved filter presets that can be switched with one touch.Read 1 Oct 2026 · play.google.com
Google Play availability
Google Play lists OGM as containing ads and in-app purchases with 1K+ downloads.Read 15 Oct 2026 · play.google.com
Hosting location
The terms state that the services are hosted in Ukraine.Read 15 Oct 2026 · ogm.sefir.dev
Independent Android listing
AppBrain classified OGM as a free Books & Reference app by sefir.den and reported no ratings on the page it opened.Read 15 Oct 2026 · appbrain.com
Independent Android size
AppBrain listed the APK size as 107.51 MB for version 0.9.99.Read 15 Oct 2026 · appbrain.com
Independent developer history
AppBrain says the sefir.den Android developer has been active since 2019 and has published multiple apps.Read 15 Oct 2026 · appbrain.com
Languages
The interface is advertised as supporting 12 languages.Read 15 Oct 2026 · ogm.sefir.dev
Licence terms
The terms grant a revocable, non-exclusive, non-transferable personal-use licence and prohibit copying, reverse engineering and derivative works.Read 15 Oct 2026 · ogm.sefir.dev
Limit: icon size
An Apple reviewer complained that map icons were too small.Read 15 Oct 2026 · apps.apple.com
Limit: map coverage
An Apple reviewer reported missing special-edition content, unique weapons and armor in a map.Read 15 Oct 2026 · apps.apple.com
Manual transfer
OGM Hub supports offline export and import of progress through a text file without registration.Read 15 Oct 2026 · ogm.sefir.dev
Map library
The app provides a unified library where users can switch among dozens of game worlds.Read 15 Oct 2026 · ogm.sefir.dev
Notable update
The Apple version history records version 1.0.103 with faster loading, screen-sleep fixes, ad-layout fixes, region and heatmap search, and heatmap performance improvements.Read 15 Oct 2026 · apps.apple.com
Offline maps
Downloaded maps and core data remain usable without a network connection.Read 15 Oct 2026 · ogm.sefir.dev
Offline use
Maps and core data work offline after download; network access is needed for new or updated maps and initially loading location screenshots.Read 1 Oct 2026 · ogm.sefir.dev
Praise: overall usefulness
One Apple reviewer said the app supplied everything needed for completing a game and praised it aside from specific content gaps and small icons.Read 15 Oct 2026 · apps.apple.com
Praise: Silksong map
An Apple reviewer described the Silksong map as a useful tool on their journey to 100% completion.Read 15 Oct 2026 · apps.apple.com
Privacy services
The privacy policy names Google Play Services, AdMob, Google Analytics for Firebase, Firebase Crashlytics and Unity as third-party services used by the app.Read 1 Oct 2026 · ogm.sefir.dev
Profiles
Users can create unlimited separate profiles for different playthroughs.Read 15 Oct 2026 · ogm.sefir.dev
Progress tracking
Tracking categories can be created without a stated limit and monitored globally or by map region.Read 15 Oct 2026 · ogm.sefir.dev
Rating on Apple App Store
3.3 out of 5 from 3 ratingsRead 15 Oct 2026 · apps.apple.com
Security caveat
The privacy policy says commercially acceptable protections are used but absolute security cannot be guaranteed.Read 1 Oct 2026 · ogm.sefir.dev
Security statement
The privacy policy says commercially acceptable safeguards are used but does not guarantee absolute security.Read 15 Oct 2026 · ogm.sefir.dev
Smart caching
Location screenshots can load from the network once and remain cached for later offline viewing.Read 15 Oct 2026 · ogm.sefir.dev
System requirements
The App Store listing requires iOS 15 or later and macOS 12 or later on an Apple M1-or-newer Mac.Read 15 Oct 2026 · apps.apple.com
Third-party services
The privacy policy names Google Play Services, AdMob, Google Analytics for Firebase, Firebase Crashlytics and Unity.Read 15 Oct 2026 · ogm.sefir.dev

Plans and prices

Free Free offline maps · markers · progress tracking · ad-supported Read 15 Oct 2026 · ogm.sefir.dev
Monthly Premium $1.99 a month monthly removes ads Read 15 Oct 2026 · apps.apple.com
Yearly Premium $7.99 a year yearly removes ads Read 15 Oct 2026 · apps.apple.com
Lifetime Access $29.99, paid once one-time purchase removes ads Read 15 Oct 2026 · apps.apple.com

Every OGM plan and price →

Strong points and limits

Strong points

  • Downloaded maps and core data work offline.
  • Supports separate profiles for different playthroughs.
  • Unlimited tracking categories, notes, and markers.
  • Interface translated into 12 languages.

Limits

  • Ads appear on the free plan.
  • New or updated maps require network access.
  • Unbacked progress is deleted on uninstall.
  • macOS requires version 12 or later and an M1 chip or later.

Who it suits

OGM suits players who want offline game-world maps and tools to track multiple playthroughs. It also suits people who prefer not to register, provided they use offline export and import to preserve progress.

Verdict

OGM combines offline maps with region-level progress tracking and extensive custom markers. Choose a paid plan to remove ads, and preserve progress with cloud sync or a manual export before uninstalling.

Where Specifiction places it

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