Comparison

one plus one automation vs Number Decomposition

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

Head to head
About

one plus one automation

This app helps children automate addition and subtraction skills. It uses intelligent training methods based on memory principles to reinforce learned tasks and improve recall speed. Designed for children who already understand basic math concepts, it focuses on memorization for more complex calculations.

Highlights
  • Addition and subtraction up to 20
  • Intelligent training based on memory
  • Individual learning progress tracking
  • Written and spoken task presentation
  • Distraction-free learning environment
  • Timed challenges for recall speed
Features
Read full description

A effective, intelligent app to train automatization of addition und subtraction tasks as a basis for further calculating. Some features of the training tool: * addition and subtraction up to 5, 10 or 20 * intelligent training based on how memory works * individual learning progress bar with user profiles (every task has to bee four times right solved) * written and spoken presentation of the tasks * distraction free learning (no adds, popups, in-app-purchases, ...) Before using this app the child should have understood what additon and subtraction means and how to solve tasks. The app does not function as a tool for understanding, only as a tool for automatization of previos understood tasks. The goal of this app is automatization / memorization of the basic addition and subtraction tasks. Automated math basic tasks are important to be able to solve more complex math tasks (e.g. written addition or subtraction) easier, because basic tasks can be retrieved from memory. The training is optimized for your brain. In an intelligent way tasks which are not safely learned will be trained more often and in an shorter time intervals to support momorization of these tasks. Learned tasks will be repeated in higher time intervals so that they will be saved in your long term memory. If you solved all tasks three times in sequence correcly, the last challenge will be to compute against time to test if the solutions can be retrieved fast from memory (and not by couning up).

About

Number Decomposition

This educational app teaches children foundational math skills by focusing on number bonds up to 10, avoiding counting to build a strong understanding of arithmetic. It uses visual aids and a structured approach for quick, accurate recall of addition and subtraction facts.

Highlights
  • Number bonds up to 10
  • Drag and drop interface
  • Visual quantity images
  • Spaced repetition learning
  • Child-friendly avatars
  • Offline functionality
Features
Read full description

LEARN MATH – WITHOUT COUNTING Many children learn arithmetic by counting. That is tedious and often the start of later difficulties with math. This app begins exactly where true understanding develops after quantity–number correspondence: with the automation of number bonds up to 10. Children learn how numbers are structured and can solve addition and subtraction tasks safely, quickly, and from memory. No counting, no frustration, with visible success. HOW IT WORKS β€’ Example: 8 = ? and 3 β€’ One part is given, the other is added via drag & drop β€’ Correct? β†’ reward and progress β€’ Wrong? β†’ gentle feedback and repeat β€’ Only fast, correct answers (under 5 seconds) count as β€œknown by heart” MADE FOR CHILDREN – EVEN WITHOUT READING β€’ Intuitive operation with number tiles and structured quantity images (dice, fingers, dots, and more) β€’ Four child-friendly animal avatars: panda, dolphin, cat, dog β€’ Each correct task colors the avatar more β€’ Learning progress is always visible and motivating FOCUSED LEARNING INSTEAD OF A GAME APP β€’ Reduced sounds and calm, clear visuals β€’ No distracting effects, no flashy colors β€’ Clear didactic structure: not a game, but a real teaching and learning app PEDAGOGICALLY SOUND – RESEARCH-BASED β€’ Leitner learning system with spaced repetition (boxes 1–4) β€’ Didactic reduction: only meaningful decompositions, no swapped pairs, no zero β€’ Structured quantity images strengthen number sense and understanding β€’ Error-oriented learning: incorrect tasks are deliberately repeated β€’ Progress per avatar is transparent – also for parents and teachers SAFE AND AD-FREE β€’ No ads β€’ No in-app purchases β€’ Works offline – ideal for on the go β€’ One-time purchase, permanent use DOWNLOAD NOW – MAKE MATH SIMPLE With this app, your child becomes a master of number bonds: playful, visually structured, and sustainable. Ideal for preschool, first grade, or home practice – without distractions and with full focus on what matters.

Screenshots

one plus one automation2 screens
Number Decomposition4 screens

Verdict

The call

The clearest difference is review sentiment: Number Decomposition at 100% against one plus one automation's 67%. one plus one automation's advantage is update cadence (every 2 weeks vs every 5 months) and price ($0.99 vs $3.99). On ads, in-app purchases, monetization model and device support 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

one plus one automation costs $0.99 and Number Decomposition $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

one plus one automation ships an update every 2 weeks, Number Decomposition every 5 months. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.

Scorecard4 real differences Β· 4 level
one plus one automation versus Number Decomposition: the parameters behind the verdict, then further details
Parameterone plus one automationNumber Decomposition
Price$0.99 β€” better$3.99
Positive reviews66.7% of reviews100.0% of reviews β€” better
Update frequencyEvery 2 weeks β€” betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS9.0 β€” better17.0
Further details β€” not scored
Size9 MB78 MB
Age rating4+4+
DeveloperChristian UrffLernwunder

Customer experience

one plus one automation

Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Number Decomposition

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

one plus one automation

No in-app purchases

None

Number Decomposition

No in-app purchases

Questions

Is one plus one automation free?
one plus one automation costs $0.99, with no in-app purchases.
Is Number Decomposition free?
Number Decomposition costs $3.99, with no in-app purchases.
Do one plus one automation or Number Decomposition have ads?
Neither one plus one automation nor Number Decomposition shows ads.
Which is updated more often, one plus one automation or Number Decomposition?
one plus one automation ships an update every 2 weeks, and Number Decomposition every 5 months. Most recently, one plus one automation was updated on October 14, 2026 and Number Decomposition on October 12, 2026.

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