Comparison

Number Line vs one plus one automation

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

Head to head
About

Number Line

This educational app helps young learners grasp the concept of number scales and ordering. It features interactive game modes where children drag numbers to their correct positions on a number line or identify numbers based on their location. Adjustable difficulty and number ranges cater to different learning levels.

Highlights
  • Number line visualization
  • Drag and drop number placement
  • Identify number by position
  • Adjustable difficulty
  • Customizable number ranges
  • High score tracking
Features
Read full description

This app is a great tool for children to practice their idea of different scales in mathematics: is 8 bigger than 18? Or vice versa? And what about 180? What seems to be obvious for adults is something all children first have to learn. This app helps children to build a mental image of a number line which is essential for calculating. **** Game modes **** Mode 1: Find the correct position Drag the owl to the correct position on the number line branch to a given number. Are you close enough to feed the owl? Take care of falling nuts! Mode 2: Find the correct number The owl moves to a particular point on the number line. Enter the number you think corresponds best to her position. (iPad only) The better the child is, the higher it will rank on the high score table! **** Settings **** - Adjustable difficulty - Number range: 10, 20, 100, 1000, 100'000

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).

Screenshots

Number Line4 screens
one plus one automation2 screens

Verdict

The call

The clearest difference is update cadence: one plus one automation at every 2 weeks against Number Line's every 6 months. one plus one automation also leads on price ($0.99 vs $1.99). On review sentiment, ads, in-app purchases and monetization model 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

Number Line costs $1.99 and one plus one automation $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Number Line ships an update every 6 months, one plus one automation every 2 weeks. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

Scorecard2 real differences · 8 level
Number Line versus one plus one automation: the parameters behind the verdict, then further details
ParameterNumber Lineone plus one automation
Price$1.99$0.99 — better
Rating5.0 (5 ratings) — better—
Positive reviews60.0% of reviews66.7% of reviews — better
Number of ratings5 — better—
Update frequencyEvery 6 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better9.0
Further details — not scored
Size37 MB9 MB
Age rating4+4+
DeveloperSimon StorzChristian Urff

Customer experience

Number Line

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

one plus one automation

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

In-app purchases

None

Number Line

No in-app purchases

None

one plus one automation

No in-app purchases

Questions

Is Number Line free?
Number Line costs $1.99, with no in-app purchases.
Is one plus one automation free?
one plus one automation costs $0.99, with no in-app purchases.
Do Number Line or one plus one automation have ads?
Neither Number Line nor one plus one automation shows ads.
Which is updated more often, Number Line or one plus one automation?
Number Line ships an update every 6 months, and one plus one automation every 2 weeks. Most recently, Number Line was updated on October 24, 2026 and one plus one automation on October 14, 2026.

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