Comparison

OPENskill vs Unbiased

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

Head to head
About

OPENskill

Features
Read full description

OPENskill makes learning fun and engaging! - Bite-sized lessons designed for easy understanding - Mini-quizzes that challenge your thinking - Earn XP and track your daily progress - Keep your streak alive and build habits that last - Cute characters and a vibrant interface for all ages Key Features β€’ Lessons with simple visuals and examples β€’ Interactive quizzes to reinforce learning β€’ XP & Achievement system to motivate progress β€’ Personal profile to track stats and milestones Start your learning journey today. Grow your skills while having fun with OPENskill

About

Unbiased

Features
Read full description

Unbiased is a calm and focused space for sharpening your critical thinking. Our minds rely on mental shortcuts that help us make quick decisions. While these shortcuts are often helpful, they can sometimes work against us. Unbiased helps you notice those moments. Through lessons, reflections, and interactive exercises, the app introduces common cognitive biases, logical fallacies, and reasoning traps, and shows how to recognize them in everyday life. Whether you’re interested in psychology, curious about philosophy, or simply want to make more objective decisions, Unbiased offers a quiet place to sharpen your thinking. Terms of Service: https://unbiasedapp.com/terms Privacy Policy: https://unbiasedapp.com/privacy

Screenshots

OPENskill4 screens
Unbiased4 screens

Verdict

The call

The clearest difference is in-app purchases: OPENskill at none against Unbiased's 3. Unbiased's advantage is update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Unbiased sells 3 in-app purchases, starting at $5.99 per month. OPENskill asks for nothing beyond the download.

UpkeepUpdate frequency

OPENskill ships an update every 3 weeks, Unbiased weekly. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

Scorecard2 real differences Β· 4 level
OPENskill versus Unbiased: the parameters behind the verdict, then further details
ParameterOPENskillUnbiased
PriceFreeFree
Update frequencyEvery 3 weeksWeekly β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPod
Requires iOS15.0 β€” better15.6
Further details β€” not scored
Size33 MB35 MB
Age rating9+12+
DeveloperSiamSquared Technologies (Thailand) Co., Ltd.Luka Cupic

In-app purchases

None

OPENskill

No in-app purchases

3 purchases

Unbiased

Subscriptions2
  • Monthly7 Days trial$5.991 Month
  • Yearly14 Days trial$34.991 Year
One-time1
  • One-Time Purchase$69.99

Questions

Is OPENskill free?
OPENskill is free to download, with no in-app purchases.
Is Unbiased free?
Unbiased is free to download, with in-app purchases available.
Do OPENskill or Unbiased have ads?
Neither OPENskill nor Unbiased shows ads.
Which is updated more often, OPENskill or Unbiased?
OPENskill ships an update every 3 weeks, and Unbiased weekly. Most recently, OPENskill was updated on November 8, 2026 and Unbiased on November 5, 2026.

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