Comparison

1x1. Lite vs Lemma

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

Head to head
About

1x1. Lite

Features
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1x1 helps to teach children how to multiply the numbers from 1 to 10. The app doesn't use any words, so it can be used by children in any language. The app has been tested by teachers β€” you will find the references inside the app, under "references". This version shows the multiplication sign as a dot: 3 Β· 4. There is also a version with a cross (3 Γ— 4), called "1x1..". This is the Lite version: the first three games of every level are free. If you like the app, one single in-app purchase unlocks all nine games β€” a one-time purchase, and it works with Family Sharing. The app has eight levels, from BEGINNER to INSANE. Each level has nine games, its own tasks and its own trophy β€” 72 games and eight trophies in all. By the end of the level HARD, all 100 multiplication tasks from 1Γ—1 to 10Γ—10 have been practiced; CHAMPION and INSANE are an extra challenge on top. Our apps are based on a modification of the Leitner system: https://en.wikipedia.org/wiki/Flashcard This means that a task comes back until the child answers it correctly. The app also remembers every task the child has ever got wrong and brings it back later. This is how the answers stay in the child's memory, so real learning happens. Under the equation the answer is also shown as a picture: in a field of a hundred dots, as many light up as the result of the task. A child who does not know the answer yet can count them. If the child answers all the tasks of a game correctly, the game is finished, and the next game opens only when the score is high enough. Every game can earn up to three stars. To earn the third star, the child has to play the game again, this time without the help of the dots. β€’ Eight levels with nine games each, and a trophy for every level β€’ Every player has their own name, their own scores and their own settings β€’ Two settings per child: how many different tasks one game holds (easy, medium or hard), and how often a task comes back β€’ A row of diamonds shows how many tasks the game holds β€’ The scores can be reset, so that a child can repeat the lessons later, or another child can do the exercises β€’ No advertising from third parties β€’ No account and no registration β€’ Links out of the app only behind a parental gate Please note that our apps are real educational apps, made, among others, for the classroom and for homework. In our apps the education is more important than fun. Our apps are more like doing homework than playing a game, so finishing them can be some work for a child. It might be helpful if the parents or teachers support the child's motivation. The reward for the work is that the child will master all multiplication tasks up to 10Γ—10 without any problems. We would very much appreciate any feedback from you: info@creasoft.app Recommended for ages 8 and up

About

Lemma

Features
Read full description

Stop copying. Start understanding. Stuck on a maths problem? Lemma isn't another calculator that just gives you the answer. It’s a Socratic Tutor that guides you through the logic, step-by-step. SCAN & LEARN: Point your camera at any handwritten or printed problem. Lemma’s advanced Vision engine recognises the maths and brings it to life on a digital blackboard. SOCRATIC DIALOGUE: Instead of just showing the result, Lemma asks the right questions. It identifies the gaps in your knowledge and provides hints that help you bridge them yourself. BEAUTIFUL LATEX RENDERING: Maths should look like maths. Lemma renders every equation in crisp, professional LaTeX, making complex calculus and algebra easy to read. FEATURES: Instant maths recognition (Handwritten & Printed). Intelligent, curriculum-aware Socratic hints. Support for GCSE and A -Level topics, as well as Undergraduate and Postgraduate modules. History of all your solved sessions. Clean, distraction-free interface. Master the logic. Own the result. Get Lemma. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

1x1. Lite4 screens
Lemma4 screens

Verdict

The call

The clearest difference is iOS requirement: 1x1. Lite at 13.0 against Lemma's 26.0. On price, update cadence, ads and in-app purchases 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

Both are free to download. 1x1. Lite sells 1 one-off in-app purchase and Lemma sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

Scorecard1 real difference Β· 5 level
1x1. Lite versus Lemma: the parameters behind the verdict, then further details
Parameter1x1. LiteLemma
PriceFreeFree
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS13.0 β€” better26.0
Further details β€” not scored
Size25 MB3 MB
Age rating4+4+
Developercreasoft.deSHAUNAK NAVIN DESAI

In-app purchases

1 purchases

1x1. Lite

One-time1
  • unlock full version$0.99
1 purchases

Lemma

Subscriptions1
  • Lemma Pro Monthly$4.991 Month

Questions

Is 1x1. Lite free?
1x1. Lite is free to download, with in-app purchases available.
Is Lemma free?
Lemma is free to download, with in-app purchases available.
Do 1x1. Lite or Lemma have ads?
Neither 1x1. Lite nor Lemma shows ads.
Which is updated more often, 1x1. Lite or Lemma?
1x1. Lite ships an update every 4 months, and Lemma every 4 months. Most recently, 1x1. Lite was updated on October 24, 2026 and Lemma on October 10, 2026.

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