Comparison

Skillkeep vs Chrono Atlas

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

Head to head
About

Skillkeep

Features
Read full description

Skillkeep: Neuroscience-Powered Learning for Every Student Forgetting what you studied yesterday? You’re not alone. Research shows we lose most new knowledge within days unless we review it. Skillkeep solves this with a simple, powerful system that makes your learning stick. Our app combines proven neuroscience with smart technology to help you remember what matters most. Why Skillkeep? • Daily Brain Boosts: Personalized review sessions chosen for you based on the forgetting curve. • Smart Tracking: See your progress, strengths, and areas that need more attention. • For Everyone: Students, teachers, parents, and lifelong learners. • Family & School Accounts: Stay connected with your child’s learning journey. • Evidence-Based: Designed with input from educational psychology experts. Who Benefits • Students: Learn faster, forget less, and build confidence. • Teachers: Track retention without extra testing and extend learning beyond class. • Parents: Gain visibility into your child’s study habits and support them at home. Start free today and experience learning that lasts. Skillkeep: Make learning stick.

About

Chrono Atlas

Explore world history interactively through a timeline and map. Discover civilizations, delve into landmark stories, and reinforce learning with engaging challenges. Collect illustrated cards to revisit key historical elements.

Highlights
  • Interactive timeline and world map
  • Civilization and landmark discovery
  • Short, engaging learning challenges
  • Collectible illustrated Codex cards
  • Offline core content
  • In-app narration
Features
Read full description

History is easier to understand when you can see where—and when—it happened. Chrono Atlas turns world history into an interactive journey across time and place. Move through the timeline, explore civilizations on a world map, step into landmark stories, and complete short challenges that help key ideas stick. EXPLORE ACROSS TIME Use the timeline to see which civilizations and historical states existed together. Shift between eras and watch the map change. DISCOVER CIVILIZATIONS AND LANDMARKS Travel from Ancient Egypt and Mesopotamia to classical empires, medieval realms, Asian dynasties, and early modern powers. Every civilization is visible, and each includes at least one landmark you can explore for free. LEARN BY DOING Complete short, focused interactions that reinforce what you discover. BUILD YOUR CODEX Unlock illustrated cards as you explore. Revisit civilizations, landmarks, and historical ideas from your collection, or save unlocked cards to Photos. LISTEN YOUR WAY Hear landmark stories in English or Simplified Chinese with built-in narration. TRACK YOUR JOURNEY See completed landmarks, unlocked cards, and overall progress. Progress is stored on your device; no account or sign-in is required. OPTIONAL LANDMARK ATLAS Additional landmark cards remain visible as previews. Landmark Atlas — Lifetime is an optional, one-time in-app purchase that permanently unlocks all premium landmarks in the Landmark Atlas. It is not a subscription. Chrono Atlas includes: • Civilizations and historical states across eras and regions • At least one free landmark in every civilization • Landmark stories and short interactions • Collectible Codex cards • An interactive timeline and world map • English and Simplified Chinese content • Offline access to previously downloaded content • No account or advertising Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://nero0001-wei.github.io/legal/chrono-atlas/privacy.html

Screenshots

Skillkeep4 screens
Chrono Atlas4 screens

Verdict

The call

The clearest difference is iOS requirement: Skillkeep at 15.0 against Chrono Atlas's 17.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Skillkeep ships an update every 2 weeks, Chrono Atlas fortnightly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard1 real difference · 8 level
Skillkeep versus Chrono Atlas: the parameters behind the verdict, then further details
ParameterSkillkeepChrono Atlas
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size325 MB29 MB
Age rating4+12+
DeveloperBitsational永伟 阮

In-app purchases

None

Skillkeep

No in-app purchases

None

Chrono Atlas

No in-app purchases

Questions

Is Skillkeep free?
Skillkeep is free to download, with no in-app purchases.
Is Chrono Atlas free?
Chrono Atlas is free to download, with no in-app purchases.
Do Skillkeep or Chrono Atlas have ads?
Neither Skillkeep nor Chrono Atlas shows ads.
Which is updated more often, Skillkeep or Chrono Atlas?
Skillkeep ships an update every 2 weeks, and Chrono Atlas fortnightly. Most recently, Skillkeep was updated on October 30, 2026 and Chrono Atlas on November 5, 2026.

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