Comparison

Underfoot vs KGNAD

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

Head to head
About

Underfoot

Features
Read full description

Discover What's Under Your Feet!  A Global Adventure in Your Pocket! Ever wondered what's on the exact opposite side of the Earth from where you are? Underfoot takes you on an incredible journey through our planet, letting you instantly explore antipodal points and discover fascinating places you never knew existed! Key Features: Dig Through the Earth - Instantly travel to the opposite side of any location Explore Local Stories - Uncover hidden gems and fascinating histories within 10km of any spot Random Adventures - Let serendipity guide you to amazing places worldwide Geography Challenge - Test your global knowledge with our fun country-guessing game Wikipedia Integration - Learn about any location with rich, detailed information Perfect for: Geography enthusiasts Travel lovers Students and educators Anyone curious about our world  Start your global adventure today and discover the amazing stories that lie beneath your feet!

About

KGNAD

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der, den, dem, or des? German has four words for "the" and a rule for each. KGNAD drills those rules until the right one is automatic. KGNAD is a study app for the German cases: Nominativ, Akkusativ, Dativ, and Genitiv. It is built around one short, focused loop. HOW IT WORKS Every question is a real German sentence with one word missing and four answers. You tap the article or ending you think is right. The app tells you immediately whether you got it and shows you the rule behind the answer, in plain English. Questions you miss come back in later sets, spaced out over time, until you get them right. Spaced repetition doing the work of a flashcard deck, without the deck. WHAT YOU DRILL - Nominativ and Akkusativ: der, den, einen, mich, dich, ihn - Dativ: dem, der, mir, dir, and the verbs that demand it (helfen, danken) - Fixed prepositions: für + Akkusativ, mit + Dativ, zum, zur, ins - Two-way prepositions: wohin vs. wo, stellen vs. stehen - Genitiv and N-Deklination: des Mannes, dem Kollegen - Adjective endings: weak, mixed, and strong - The fine print: dessen, deren, eines Tages Study one topic at a time, or hit FULL MIX to shuffle every case together the way real German does. A CHEAT SHEET, ALWAYS ON HAND Stuck mid-question? Open the built-in reference for the full declension tables: Artikel, Ein-Wörter, Pronomen, and Adjektivendunge looking. TECHNO WHILE YOU STUDY KGNAD comes with licensed background tracks that play whil a session feels less like homework and more like heads-down focus. Turn it off any time. NO ACCOUNT. NO ADS. No sign-up, no nagging. Open it, drill a set, close it. der, die, das. dativ, akkusativ, genitiv. one set at a time. KEINE GNADE.

Screenshots

Underfoot4 screens
KGNAD4 screens

Verdict

The call

Underfoot and KGNAD are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ScorecardNo meaningful differences
Underfoot versus KGNAD: the parameters behind the verdict, then further details
ParameterUnderfootKGNAD
PriceFreeFree
Update frequency—Every 2 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS18.018.0
Further details — not scored
Size19 MB399 MB
Age rating4+9+
DeveloperRobert OrtnerJoao Filipe Serôdio Josézinho

In-app purchases

None

Underfoot

No in-app purchases

None

KGNAD

No in-app purchases

Questions

Is Underfoot free?
Underfoot is free to download, with no in-app purchases.
Is KGNAD free?
KGNAD is free to download, with no in-app purchases.
Do Underfoot or KGNAD have ads?
Neither Underfoot nor KGNAD shows ads.

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