Comparison

First Grade Math Trainer vs KGNAD

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

Head to head
About

First Grade Math Trainer

Features
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First Grade Math Trainer transforms early math learning into a fun, interactive experience. With intuitive handwritten input, kids can practice addition and subtraction by physically writing numbers on-screen. The app features two modes – a self-paced Math Trainer for mastering facts without pressure and the engaging Math Shot mini-game that adapts to each child's skill level. Whether solving simple addition up to 10 or more complex subtraction problems, young learners enjoy hands-on practice that builds confidence and fluency in essential math skills. With First grade Math Addition you can practice and improve the following skills: - Addition up to 10 - Addition up to 18 - Addition up to 20 - Add a number to a multiple of ten - Add two multiples of ten - Add doubles - Add three numbers up to 10 each - Relate addition and subtraction With First grade Math Subtraction you can practice and improve the following skills: - Subtraction facts - numbers up to 10 - Subtraction facts - numbers up to 18 - Subtraction facts - numbers up to 20 - Subtract multiples of 10 - Subtract a multiple of ten - Relate addition and subtraction - Subtract one-digit number from two-digit number - Subtract two two-digit numbers With Addition Skill Builders you can practice and improve the following skills: - Adding 1 - Adding 2 - Adding 3 - Adding 4 - Adding 5 - Adding 6 - Adding 7 - Adding 8 - Adding 9 - Adding 10 With Subtraction Skill Builders you can practice and improve the following skills: - Subtracting 1 - Subtracting 2 - Subtracting 3 - Subtracting 4 - Subtracting 5 - Subtracting 6 - Subtracting 7 - Subtracting 8 - Subtracting 9 - Subtracting 10

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

First Grade Math Trainer4 screens
KGNAD4 screens

Verdict

The call

The clearest difference is price: KGNAD at Free against First Grade Math Trainer's $2.99. KGNAD also leads on update cadence (every 2 weeks vs every 26 months). First Grade Math Trainer's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 18.0). On 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

KGNAD is free to download; First Grade Math Trainer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

First Grade Math Trainer ships an update every 26 months, KGNAD every 2 weeks. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 2 level
First Grade Math Trainer versus KGNAD: the parameters behind the verdict, then further details
ParameterFirst Grade Math TrainerKGNAD
Price$2.99Free — better
Update frequencyEvery 26 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better18.0
Further details — not scored
Size17 MB399 MB
Age rating4+9+
DeveloperSergey MaluginJoao Filipe Serôdio Josézinho

In-app purchases

None

First Grade Math Trainer

No in-app purchases

None

KGNAD

No in-app purchases

Questions

Is First Grade Math Trainer free?
First Grade Math Trainer costs $2.99, with no in-app purchases.
Is KGNAD free?
KGNAD is free to download, with no in-app purchases.
Do First Grade Math Trainer or KGNAD have ads?
Neither First Grade Math Trainer nor KGNAD shows ads.
Which is updated more often, First Grade Math Trainer or KGNAD?
First Grade Math Trainer ships an update every 26 months, and KGNAD every 2 weeks. Most recently, First Grade Math Trainer was updated on October 3, 2026 and KGNAD on October 15, 2026.

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