Comparison

FathomVerse vs Locked In

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FathomVerse

Explore the ocean world through an immersive game that trains AI for scientific research. Discover and identify over 50 groups of ocean animals using real imagery collected by researchers. Contribute to science while playing minigames, completing quests, and earning badges.

Highlights
  • Play minigames with real ocean imagery
  • Identify over 50 groups of ocean animals
  • Save and share favorite images
  • Participate in quests and earn badges
  • Unlock awards for gameplay contributions
  • Customize soundscape with Ocean Radio
Read full description

The ocean covers more than 70% of our planet, yet most of the life within it remains undiscovered. FathomVerse is changing that, one dive at a time. FathomVerse invites everyone to take part in real ocean exploration and discovery. Through interactive mini-games, FathomNauts identify animals in real underwater photos and contribute to a growing library of labeled images that helps scientists catalog and understand marine life. With FathomVerse, you can: - Be among the first to review real imagery collected in the ocean. - Learn to identify more than 70 groups of marine animals. - Help train AI models by labeling animals in underwater images. - Participate in quests, earn badges, and track your scientific contributions. - Save and share your favorite ocean images in a personal gallery. Whether you're a lifelong ocean lover or simply curious about what lives in the depths, FathomVerse makes it easy to contribute to meaningful scientific research.

About

Locked In

Features
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Locked-In is a bite-sized study companion for the CompTIA A+ certification — both Core 1 (220-1201) and Core 2 (220-1202). Built for people who study in 10-minute windows on the train, on lunch, or between meetings — every lesson is short, focused, and ends with a quick-check so you know what stuck. WHAT'S INSIDE • Both A+ exams covered: Core 1 (220-1201) and Core 2 (220-1202) • All 9 domains — Mobile Devices, Networking, Hardware, Virtualization & Cloud, Hardware/Network Troubleshooting, Operating Systems, Security, Software Troubleshooting, and Operational Procedures • Visual diagrams for the concepts that need one (OSI model, RAID levels, laser imaging process, hypervisor types, defense in depth, and more) • Inline quick-checks at the end of each lesson • Practice bank of 145 multiple-choice questions, organized by domain • Performance-Based Questions (PBQs) — tap to categorize, order, and match • A 90-question mixed Core 1 + Core 2 timed practice mode with flag-for-review and a final review screen (a study tool, not a simulation of either separate exam) • Flashcard deck of 82 must-know terms with spaced repetition • Searchable glossary of 75 key terms and acronyms • Progress tracking, streaks, bookmarks, and personal notes • Spaced review that brings back the questions and cards you keep missing WHAT'S FREE, WHAT'S PAID Free to download and study, with no account and no time limit: • 14 of the 162 lessons — the six lessons of Core 1 Domain 1's first topic, plus the first lesson of every domain • Quizzes of up to 10 questions per session, drawn from the whole 145-question bank • A 2-question PBQ preview • The Core 1 Domain 1 flashcards • The complete 75-term glossary • Progress tracking, streaks, bookmarks, and notes One non-consumable in-app purchase — Locked-In Full Unlock, no subscription — adds: • The remaining 148 lessons, for all 162 across 56 topics and both cores • Quiz sessions of 15, 25 and 50 questions (25 and 50 mix all domains; no single domain holds that many) • All 15 Performance-Based Questions • All 82 flashcards • The full 90-question, 90-minute cross-core timed practice mode WHO IT'S FOR • Career changers entering IT support and help-desk roles • Students supplementing a course or boot camp • Professionals refreshing before a recertification window • Anyone who learns better in short, focused sessions than long lectures WHY LOCKED-IN • Bundled lessons and practice work offline — no account, no tracking, no ads. App Store product loading, buying, and restoring require a network connection. • One-time unlock, no subscription • Built by an indie developer, not a content mill PRIVACY Locked-In stores your progress on-device. No analytics, no third-party SDKs, no data sold or shared. DISCLAIMER Not affiliated with, endorsed by, or sponsored by CompTIA. CompTIA® and A+® are registered trademarks of CompTIA, Inc.

Screenshots

Locked In4 screens

Verdict

The call

The clearest difference is in-app purchases: FathomVerse at none against Locked In's 1. FathomVerse also leads on iOS requirement (15.0 vs 17.0). Locked In's advantage is update cadence (every 11 days vs every 6 weeks). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Locked In sells 1 one-off in-app purchase. FathomVerse asks for nothing beyond the download.

UpkeepUpdate frequency

FathomVerse ships an update every 6 weeks, Locked In every 11 days. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
FathomVerse versus Locked In: the parameters behind the verdict, then further details
ParameterFathomVerseLocked In
PriceFreeFree
Rating4.7 (92 ratings) — better—
Positive reviews85.7% of reviews—
Number of ratings92 — better—
Update frequencyEvery 6 weeksEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size284 MB5 MB
Age rating4+4+
DeveloperMonterey Bay Aquarium Research InstituteOMAR DANIEL GRAZIANO

In-app purchases

None

FathomVerse

No in-app purchases

1 purchases

Locked In

One-time1
  • Locked-In Full Unlock$9.99

Questions

Is FathomVerse free?
FathomVerse is free to download, with no in-app purchases.
Is Locked In free?
Locked In is free to download, with in-app purchases available.
Do FathomVerse or Locked In have ads?
Neither FathomVerse nor Locked In shows ads.
Which is updated more often, FathomVerse or Locked In?
FathomVerse ships an update every 6 weeks, and Locked In every 11 days. Most recently, FathomVerse was updated on October 21, 2026 and Locked In on October 13, 2026.

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