# 1+1 Lite

> Educational app for children learning basic addition with a spaced repetition system. (iPhone/iPad app by creasoft.de.)

- Source: https://appshunter.io/ios/app/1-plus-1-lite/id549012711 (this page in markdown: same URL + `.md`)
- Developer: [creasoft.de](https://appshunter.io/developer/537049278)
- Category: Education, Games, Family
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 6.0 · 25 MB
- Languages: American English
- Released: 2012-10-02
- Data updated: 2026-08-03
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/1-plus-1-lite/id549012711/reviews.md

## What is 1+1 Lite?

--Lite Version: only three levels are open for testing. Full version can be got with in-app--
1+1 helps to teach children how to add numbers from 1 to 10. The app doesn’t use any words, so the app can be used for children in any language. Based on the Leitner-System, means questions will be repeated again and again as long as the child learned the answer. Can also be used for older children to perfect what they have learned.
The app is tested by teachers, what you can find below in references.

teachingappz.co.uk:"I had great fun playing with the app :-) Possible Classroom Uses: 1. Connect the device to a projector and use it to review basic addition skills. 2. Let children explore the app individually. How many levels can they complete successfully? 3. Use the app alongside practical equipment to support children’s counting and addition skills."

bestappsforkids.org: "1+1 is a fantastic math app for our little ones! It is based on a concept of repetition yet our kids will never notice as the colorful presentation and the constant positive reinforcement keeps them going! If they get a wrong answer there is a subtle sound and the problem will be repeated until it is apparent that they know the correct answer. You can reset the app back to new in the info page. This would be a great classroom and preschool app! This app is a great addition to your kid’s toolbox for life!"

apps24h.com: "1+1 is a great math app to practice math. It is simple and well designed to help kids learn all the required steps to deal with simple math. Fun Educational Apps would highly recommend to kids just starting learning about math."

esparklearning.com: "Your app 1+1 is included in our new curriculum, which is being rolled out to thousands of additional students this fall."

pappasappar.se: "1+1 is a well thought out app that works well in both home and school. I recommend it to children from 4 years and up."

kinderappgarten.de: "1+1 is a useful tool for all parents with school starters or preschoolers who want to prepare for the first class."

HOW IT WORKS:

The app is split in nine levels. In every level there are six equations, which the child has to solve.
The app is based on a modification of the Leitner system:
http://en.wikipedia.org/wiki/Flashcard
That means, the questions are repeated until the child gives the right answer. Thus, the answers will be incorporated into the memory. So it creates a real learning effect.
If child did all correct, the level is finished and in case, child got enough scores, next level will be opened. To get the third star, child has to play the level again.

Recommended for ages 5 - 8

REFERENCES:

'The 1+1 program is an adequate introduction in mathematical basic experiences and understanding for pre-school-age children and newcomers in school.
The design of the program enables them to do the lessons by their own. Children like the layout with the clear colors and shapes.
After each lesson the program motivates the children by an encouragement.
As a headmaster with many years of experience I can give my best recommendations to the 1+1 program.'

Ludwig Hanisch, director primary school, Germany

'The 1 + 1 program of the company creasoft is a by methodical / didactic aspects developed learning software for children of the first primary school class. It practices the addition in the numerical range to 10. Psychological aspects of learning were at the iphone/ipad - app considered and also a motivating, age-appropriate layout and intuitive operability.
In my view, the app is recommended as a complementary medium for learning and practicing very much.'

Jürgen Haller, director high school, specialized in edutainment, Germany

'The very clear tasks of this educational game make fun!
They ask and encourage the concentration inconspicuous,
because the joy of solving the tasks is in the foreground.
This successful combination leads to successful learning.'

Anne Claßen, teacher primary school, Germany

## Key features

- Teaches addition from 1 to 10
- Language-independent design
- Leitner-System for repetition
- Colorful and engaging visuals
- Positive reinforcement
- Progress tracking through levels

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| unlock full version | $0.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/1-plus-1-lite/id549012711/reviews.md

### 5/5 — Great App!

*2013-01-03*

This is a wonderful math app that let's children use the fundamentals of counting to learn how to add. It is how we teach children in school to add and this free version is such a great trial to show what the full version has to offer. I own both and started with this lite version. I would recommend this app to all teaching children how to add.

## Frequently asked questions about 1+1 Lite

### What is the short name for 1+1 Lite?

The short common name for the app is 1+1 Lite.

### How does 1+1 Lite teach addition?

1+1 Lite teaches addition using a modified Leitner system, which involves repeating questions until the child answers correctly. This method aims to embed the answers into memory for a real learning effect.

### What age range is 1+1 Lite recommended for?

1+1 Lite is recommended for children aged 4 and up, specifically targeting ages 5-8 for optimal learning.

### Is 1+1 Lite available in multiple languages?

Yes, 1+1 Lite is designed to be language-independent as it doesn't use words, making it accessible to children of any language background.

### How does 1+1 Lite track progress?

The app is split into nine levels, with six equations per level. Completing a level successfully unlocks the next, and replaying a level can earn a third star, indicating mastery.

### What is the update frequency for 1+1 Lite?

The latest version of 1+1 Lite is 1.0.7, which was last updated on April 3, 2015. This indicates infrequent updates.

### What is the user sentiment for 1+1 Lite?

Based on the provided data, 1+1 Lite has a perfect rating of 5.0 stars from 1 rating, suggesting very positive initial user feedback.

### Does 1+1 Lite have ads?

The provided data does not specify if 1+1 Lite contains advertisements. However, it is listed as free and does not mention in-app purchases for the full version, suggesting it may be ad-supported or a fully free version.

## Version history (last 5 releases)

### 1.0.7 — 2015-04-03

This app has been updated by Apple to display the Apple Watch app icon.

optimized for iPhone5 and iPhone6

### 1.0.4 — 2015-02-28

better memory management so that app can run also on smaller devices.

### 1.0.3 — 2015-02-18

New categories for iOS 7

### 1.0.2 — 2012-10-17

Did receive memory warnings for smaller devices. Now free memory during runtime.

### 1.0.1 — 2012-10-02

No release notes.

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All apps by creasoft.de: https://appshunter.io/developer/537049278

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-03.*