Comparison

NONSTOP CARDS vs Rechenflow Mental Math

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

Head to head
About

NONSTOP CARDS

This app-powered word game uses letter cards to challenge players to find words that fit given topics and start with specific letters. It offers multiple topic categories and game modes for engaging fun with friends and family.

Highlights
  • App-guided gameplay
  • Letter card challenges
  • Multiple topic categories
  • Two distinct game modes
  • Offline play after initial unlock
  • Regular content updates
Features
Read full description

NONSTOP CARDS – The app powered word game with letter cards “If you like categories games, you’ll love this one!” NONSTOP CARDS is a card game played together with this app. It’s lively engaging and super easy to pick up. You can learn the rules in under 60 seconds and it guarantees tons of fun. The app guides you through the game and reads out new topics. Your task: find words that fit the topics and start with the letters on your cards. Funny action cards keep things exciting and unpredictable. FOUR TOPIC CATEGORIES ● ORIGINAL delivers the best mix of all topics ● PARTY perfect for fun game nights ● FAMILY a colorful mix for the whole family ● KIDS simpler topics that boost creativity and language skills Thanks to the app, all categories can be played in German and English. The app is continuously updated with new content. HOW TO PLAY Everyone takes 8 cards and starts a game in the app. The app automatically reads the topics. You have to find matching words that start with the letters on your cards. The goal is to get rid of all your cards as fast as possible. SECOND GAME MODE “CIRCLE” Besides the standard “NONSTOP” mode, there’s also the “CIRCLE” mode. One person plays against the clock while another checks the answers and controls the app. This mode works perfectly for two players or small groups. PERFECT FOR ANY OCCASION Whether it’s a family night, a birthday or a casual hangout with friends. NONSTOP CARDS always brings good vibes. FEATURES ● Easy to learn instantly fun ● The cards never need shuffling ● No repeated topics ● Actions keep the game fresh and funny ● Play with or without points ● Constantly updated with new topics ● No subscription, no hidden costs, you only need the cards MORE INFO 2–8 players · Playtime about 15–30 min · Recommended for ages 10+ IMPORTANT NOTES The app only works with the original NONSTOP CARDS letter deck sold separately. You’ll find more info in the app. The first time you start it, you’ll need an internet connection to unlock the game. After that, you can play completely offline.

About

Rechenflow Mental Math

Features
Read full description

Mental math for your daily thinking break. Ten questions a day or a quick practice round: Rechenflow turns mental arithmetic into a game. Pick the right answer, spot calculation patterns and follow your progress. INCLUDED FOR FREE • Daily challenge with ten questions and one attempt per day • Addition practice with freshly generated questions • Statistics and history UNLOCK COMPLETE ONCE • Subtraction, multiplication, division, percentages and squares • Sprint: how many questions can you solve in 60 seconds? • Estimation tasks and harder pro levels • Daily pro challenge and one streak joker per month YOUR PACE, YOUR STYLE Fit in a short round or stay for a longer practice session. Choose light mode, dark mode or your system setting. Available in English, German, French, Spanish, Italian and Brazilian Portuguese. No ads. No subscription. No cloud account is needed to play or buy. Local rounds work offline; verified online results, purchases, restores and optional cloud backup require a connection.

Screenshots

NONSTOP CARDS4 screens
Rechenflow Mental Math4 screens

Verdict

The call

The clearest difference is update cadence: Rechenflow Mental Math at every 4 days against NONSTOP CARDS's every 3 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

NONSTOP CARDS ships an update every 3 months, Rechenflow Mental Math every 4 days. Both last shipped on October 6, 2026.

Scorecard1 real difference · 7 level
NONSTOP CARDS versus Rechenflow Mental Math: the parameters behind the verdict, then further details
ParameterNONSTOP CARDSRechenflow Mental Math
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 3 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size89 MB63 MB
Age rating12+4+
DeveloperWE ARE L&P UG (haftungsbeschränkt)Christian Hermann

In-app purchases

None

NONSTOP CARDS

No in-app purchases

None

Rechenflow Mental Math

No in-app purchases

Questions

Is NONSTOP CARDS free?
NONSTOP CARDS is free to download, with no in-app purchases.
Is Rechenflow Mental Math free?
Rechenflow Mental Math is free to download, with no in-app purchases.
Do NONSTOP CARDS or Rechenflow Mental Math have ads?
Neither NONSTOP CARDS nor Rechenflow Mental Math shows ads.
Which is updated more often, NONSTOP CARDS or Rechenflow Mental Math?
NONSTOP CARDS ships an update every 3 months, and Rechenflow Mental Math every 4 days. Most recently, NONSTOP CARDS was updated on October 6, 2026 and Rechenflow Mental Math on October 6, 2026.

Other comparisons