Comparison

G^N vs Keijaoh Tutorials

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

Head to head
About

G^N

Features
Read full description

G^N is a special calculator not just a game: This math app animates iterations of one or compositions of two multi-valued maps for free groups of in principle arbitrary finite rank in the abelian and non-commutative cases respectively (in this version the rank is restricted to values in between 2 and 11). Well-known examples of such multi-valued maps are permutations, for example the flip (x_1,x_2)->(x_2,x_1), in G^N we just write (1,2)->(2,1) and instead of the inverse we convenient flip the number. A more involved type of such a multi-valued map is the n+1 cycle defined by (1,...,n)->(-2-3-...-n-1,3,4,...,n,1), a non-trivial theorem. For example if n=2 this map is the hexagon (1,2)->(-2-1,1), this map applied twice reads (1,2)->(2,-2-1) and the third iteration is the identity map (1,2)->(1,2).

About

Keijaoh Tutorials

Access expert tutorials on programming, math, and business. Explore insightful blogs and academic discussions to deepen your understanding and stay current with your chosen fields. This app offers a comprehensive platform for continuous learning and personal growth.

Highlights
  • Expert tutorials on Swift and SwiftUI
  • Backend technology guidance
  • Calculus lessons
  • Business and Computer Science blogs
  • Discussions on academic papers
Features
Read full description

Introducing our comprehensive mobile app, designed to provide you with an immersive learning experience across various topics. Dive into our expert tutorials on Swift, SwiftUI, backend technologies, Calculus, and more, all tailored to help you master these subjects with ease. In addition to our educational content, you'll find insightful blogs covering Business, Computer Science, and even in-depth discussions on academic papers authored by our team. Enhance your knowledge and stay updated with our all-in-one app.

Screenshots

G^N1 screens
Keijaoh Tutorials4 screens

Verdict

The call

The clearest difference is in-app purchases: Keijaoh Tutorials at none against G^N's 1. G^N's advantage is update cadence (every 2 weeks vs every 6 months) and iOS requirement (9.0 vs 17.0). 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. G^N sells 1 one-off in-app purchase. Keijaoh Tutorials asks for nothing beyond the download.

UpkeepUpdate frequency

G^N ships an update every 2 weeks, Keijaoh Tutorials every 6 months. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 6 level
G^N versus Keijaoh Tutorials: the parameters behind the verdict, then further details
ParameterG^NKeijaoh Tutorials
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 weeks — betterEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better17.0
Further details — not scored
Size4 MB11 MB
Age rating4+17+
DeveloperJohannes LoefflerKeijaoh Campbell

In-app purchases

1 purchases

G^N

One-time1
  • Levels$9.99
None

Keijaoh Tutorials

No in-app purchases

Questions

Is G^N free?
G^N is free to download, with in-app purchases available.
Is Keijaoh Tutorials free?
Keijaoh Tutorials is free to download, with no in-app purchases.
Do G^N or Keijaoh Tutorials have ads?
Neither G^N nor Keijaoh Tutorials shows ads.
Which is updated more often, G^N or Keijaoh Tutorials?
G^N ships an update every 2 weeks, and Keijaoh Tutorials every 6 months. Most recently, G^N was updated on October 15, 2026 and Keijaoh Tutorials on October 13, 2026.

Other comparisons