Comparison

1st Calc vs (AR) Number Line

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

Head to head
About

1st Calc

This app provides a visual abacus-style bead frame to help primary school children learn numbers up to 100. It supports addition and subtraction practice, making math more engaging and helping to prevent learning disabilities.

Highlights
  • Abacus-style bead frame
  • Learn numbers up to 100
  • Addition and subtraction practice
  • Customizable bead colors
  • Optional live cam background
Features
Read full description

„1st Calc“ is an Abacus-style bead frame, that helps primary school children to discover numbers up to 100. It provides them with a visual tool to play with numbers and lets them solve addition and subtraction problems. It is based on the latest math-teaching knowledge and its use contributes significantly to avoid any mathematical disabilities at an early stage and counteract this. „1st Calc“ is an invaluable tool harvesting the children's motivation to use the iPad or iPhone and makes up with a more fun learning experience. FEATURES · Selectable range of numbers: 0 - 20 or 0 - 100 · Bead frame for children · Choose between 4 different colors · Optional live cam view as background We will provide you with further updates. "1st Calc" will then be able to generate addition and subtraction problems, to guide the child through the solution process and to control and diagnose the child's input.

About

(AR) Number Line

This educational app uses augmented reality and interactive number lines to help primary and lower secondary students develop number concepts. It offers adaptive exercises, games, and an AI tutor to support independent learning and practice.

Highlights
  • Augmented reality number line
  • Classic number line interface
  • Adaptive exercises and games
  • AI tutor for feedback and hints
  • Configurable number ranges
  • Learning reports for teachers
Features
Read full description

Number Line is a learning app for primary school and the lower secondary level that systematically supports the development of number concepts through number line estimation tasks. It offers multiple exploratory environments for independent investigation and presentation, as well as a wide range of exercises and games with individual, adaptive adjustment options. At the core of the app is the number line in two variants: an augmented reality number line for exploring numbers “in space,” and a classic, non-AR number line for focused work on the screen. The AR number line is particularly suitable for developing number range concepts (especially in larger number ranges) and for learning through movement, while the classic number line enables a deeper engagement with numbers and numerical relationships. Using this dynamic tool, children place numbers, compare distances, find positions, discover relationships, and illustrate calculation strategies in an action-oriented way. In addition, the app includes numerous practice formats and learning games centered on numbers on the number line, which are specifically designed to address different levels of learning. Tasks adapt to the learner’s abilities and support practice in small, motivating steps—ideal for independent work, learning stations, weekly plans, targeted support, or practice at home. When errors occur or support is needed, children receive helpful feedback and hints from an AI tutor, which explains effective strategies for locating numbers and encourages further thinking. The AI tutor is optional, uses the internet, and can be deactivated at any time—ensuring flexibility for different teaching situations and needs. No personal data is transmitted when generating individualized feedback. Number Line is suitable for explanation phases, demonstration phases, inquiry-based learning tasks, individual learning, partner work, as well as targeted diagnosis and support. The number range and numerous additional display options can be freely configured—from number ranges up to 20 to negative numbers and decimal numbers. A learning report provides teachers with ongoing information about children’s competencies and difficulties. Please support the further development and improvement of the AI tutor by providing anonymized log data for scientific evaluation. This can be enabled easily in the settings. Thank you very much!

Screenshots

1st Calc4 screens
(AR) Number Line2 screens

Verdict

The call

The clearest difference is rating: 1st Calc at 3.3 against (AR) Number Line's 1.0. 1st Calc also leads on ratings volume (3 vs 1) and iOS requirement (15.6 vs 17.0). (AR) Number Line's advantage is update cadence (every 5 months vs every 50 months). On price, 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

1st Calc costs $0.99 and (AR) Number Line $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

1st Calc holds the better App Store score, 3.3 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

1st Calc ships an update every 50 months, (AR) Number Line every 5 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
1st Calc versus (AR) Number Line: the parameters behind the verdict, then further details
Parameter1st Calc(AR) Number Line
Price$0.99$0.99
Rating3.3 (3 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 50 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size9 MB96 MB
Age rating4+4+
DevelopermedienwerkstattChristian Urff

Customer experience

1st Calc

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

(AR) Number Line

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

1st Calc

No in-app purchases

None

(AR) Number Line

No in-app purchases

Questions

Is 1st Calc free?
1st Calc costs $0.99, with no in-app purchases.
Is (AR) Number Line free?
(AR) Number Line costs $0.99, with no in-app purchases.
Which has better reviews, 1st Calc or (AR) Number Line?
1st Calc is rated higher. 1st Calc averages 3.3 out of 5 from 3 ratings, while (AR) Number Line averages 1.0 from 1 ratings.
Do 1st Calc or (AR) Number Line have ads?
Neither 1st Calc nor (AR) Number Line shows ads.
Which is updated more often, 1st Calc or (AR) Number Line?
1st Calc ships an update every 50 months, and (AR) Number Line every 5 months. Most recently, 1st Calc was updated on November 6, 2026 and (AR) Number Line on November 4, 2026.

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