Comparison

G^N vs AWS DOP

Price, ratings, monetisation and update history for both apps, side by side β€” 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

AWS DOP

Prepare for your AWS DOP-C02 certification exam with practice questions updated monthly. Focus on areas where you make mistakes, save difficult questions for offline study, and simulate the real exam experience with detailed explanations.

Highlights
  • Monthly updated questions for 2024
  • Exact-filtering to focus on mistakes
  • Save difficult questions offline
  • Examination mode for realistic testing
  • Nearly 100% questions with explanations
Features
Read full description

There are many questions on the web that are either outdated or wrongly answered. I am trying here to filter all those questions and provide you with a nice tool to practice the exam similar to the real-life exam as much as possible. This small app was designed with love to help you 5 things: 1.question content is updated monthly in 2024, so you don’t have to worry that these question is outdated anymore. 2.With 2 EXACT-FILTERING features, you can focus easily on questions you are making mistakes or missing. 3.Save difficult questions offline. So you can practice them later when you have free time. 4.Examination mode will help you take test like a real exam. So you will be more confident. 5.NEARLY-100% questions are packed with straightforward explanations. You will know why it is correct or wrong. No more confusing. In sum, this app is simple and straight-to-the-point like description you are reading. Have fun and enjoy the app!

Screenshots

G^N1 screens
AWS DOP4 screens

Verdict

The call

The clearest difference is price: AWS DOP at Free against G^N's $2.99. G^N's advantage is update cadence (every 2 weeks vs every 10 months). On ads, in-app purchases, 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

AWS DOP is free to download; G^N costs $2.99 up front. G^N sells 1 one-off in-app purchase and AWS DOP sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

G^N ships an update every 2 weeks, AWS DOP every 10 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard2 real differences Β· 6 level
G^N versus AWS DOP: the parameters behind the verdict, then further details
ParameterG^NAWS DOP
Price$2.99Free β€” better
Positive reviewsβ€”0.0% of reviews
Update frequencyEvery 2 weeks β€” betterEvery 10 months
AdsNoNo
In-app purchasesYesYes
Monetizationβ€”Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 β€” better10.0
Further details β€” not scored
Size4 MB25 MB
Age rating4+4+
DeveloperJohannes LoefflerTrieu Tran

In-app purchases

1 purchases

G^N

One-time1
  • Levels$9.99
1 purchases

AWS DOP

One-time1
  • 9.99$ For All Premium Features$9.99

Questions

Is G^N free?
G^N costs $2.99, and also offers in-app purchases.
Is AWS DOP free?
AWS DOP is free to download, with in-app purchases available.
Do G^N or AWS DOP have ads?
Neither G^N nor AWS DOP shows ads.
Which is updated more often, G^N or AWS DOP?
G^N ships an update every 2 weeks, and AWS DOP every 10 months. Most recently, G^N was updated on November 2, 2026 and AWS DOP on November 3, 2026.

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