Kronos

Overview

Kronos is a Call of Duty Zombies companion focused on Easter Egg guides, interactive maps, and puzzle aids. It suits players working through multi-step objectives who want to keep their place on mobile or web. Its focused tools and offline access are compelling for solo runs; players who want broader gaming coverage should look elsewhere.

Key features

Walkthroughs divide Easter Eggs into steps, pair them with screenshots, and let players check off objectives and track progress. That makes Kronos more useful than a guide you must mentally navigate during a long run, particularly when you need to resume an unfinished objective. Coverage spans more than 40 maps, from Nacht der Untoten to Shattered Veil.

Interactive maps complement the walkthroughs, while the Memorizer records Simon Says color and number sequences and can reset them with one tap. Those are specific aids for Zombies puzzles, not a general toolkit for every game. Players can also vote on the next CoD Revival and see a countdown and voting results.

Kronos works offline and syncs offline, which is useful when a connection is unreliable. For syncing progress, bookmarks, and guide history across devices, phone sign-in stores a phone number and Firebase user ID. Firebase security rules restrict Firestore access to the authenticated account, and users can delete their account in app settings. That provides a defined account boundary, but players who prefer not to share a phone number should stick to the no-signup free experience.

Pricing

Kronos is freemium, with a Free plan at no cost. It includes interactive walkthroughs, progress tracking, mobile apps, and offline access; the plan is described as requiring no signup and working offline. That makes it a strong fit for players who want the core guide experience without a recurring charge. No paid Kronos plan is presented, so there is no higher tier to weigh against those features.

Platforms

Kronos is available on Android, iOS, and the web. Having mobile apps and browser access gives players options across phone and computer; the offline claim is especially relevant to using guides away from a dependable connection.

Who it's for

Kronos is best for Call of Duty Zombies players completing Easter Eggs who value step-by-step guidance, checklists, map references, and sequence tracking. Its narrow focus is a strength for that audience, but it is not the right pick for players seeking guides across many unrelated games.

Pros and cons

• Pros: Step-based guides, screenshots, and progress tracking help manage long Easter Egg runs.
• Pros: Offline use, a no-signup free plan, and coverage of more than 40 maps reduce friction for focused Zombies play.
• Pros: The Memorizer handles specific color and number sequences with a one-tap reset.
• Cons: Cross-device progress, bookmarks, and history syncing through phone sign-in requires storing a phone number and Firebase user ID.
• Cons: Its tools target Call of Duty Zombies rather than gaming guides broadly.

Alternatives

For broader interactive-map coverage, consider Gamer Guides Interactive Maps: its free plan includes guides, maps, databases, bookmarks, comments, and discussion, with a limit of 50 map markers per map. Choose it over Kronos if that wider reference and discussion mix matters more than Kronos's Zombies-specific walkthrough and puzzle tools.

RaiderBuddy is a better fit for players looking for game tools across a browser, Windows, or an extension: its free core tools work without an account, while Premium Yearly costs €2.99 a year. GameGuide AI is another free-plan option on Android and iOS, with in-app purchases available.

For a web map with an unlimited checklist, notes, and drawings, ClearedMap offers those tools on its free plan without requiring an account. Pocket Codex is a free iPhone and iPad option for devices running iOS 26.0 or later. MapGenie is a freemium alternative on Android, iOS, and web.

MetaForge is available on Android, iOS, and web, with a Rare Supporter plan at 11.49 PLN a month. Icy Veins is a freemium guide option on web, Windows, and macOS. Browse Video Game Guide Platforms for more options in the category.

Verdict

Choose Kronos if Call of Duty Zombies Easter Eggs are your focus: its stepwise walkthroughs, progress tracking, maps, puzzle aid, and offline access make a coherent free companion. Look elsewhere if you need guidance across games, or if syncing progress across devices with phone sign-in is not a tradeoff you want to make.