1st Calc vs Number Line
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Abacus-style bead frame
- Learn numbers up to 100
- Addition and subtraction practice
- Customizable bead colors
- Optional live cam background
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„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.
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.
- Number line visualization
- Drag and drop number placement
- Identify number by position
- Adjustable difficulty
- Customizable number ranges
- High score tracking
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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
Screenshots
Verdict
The clearest difference is rating: Number Line at 5.0 against 1st Calc's 3.3. Number Line also leads on update cadence (every 6 months vs every 50 months) and iOS requirement (8.0 vs 15.6). 1st Calc's advantage is review sentiment (100% vs 60%) and price ($0.99 vs $1.99). On ratings volume, 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
1st Calc costs $0.99 and Number Line $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Number Line holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews complicate that: 100% of 1st Calc's written reviews are positive against 60% of Number Line's, so the app with the better star average is not the one people write more warmly about.
1st Calc ships an update every 50 months, Number Line every 6 months. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.
| Parameter | 1st Calc | Number Line |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 3.3 (3 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 60.0% of reviews |
| Number of ratings | 3 | 5 — better |
| Update frequency | Every 50 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 8.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | medienwerkstatt | Simon Storz |
Customer experience
1st Calc
Number Line
In-app purchases
1st Calc
No in-app purchases
Number Line
No in-app purchases
Questions
Is 1st Calc free?
Is Number Line free?
Which has better reviews, 1st Calc or Number Line?
Do 1st Calc or Number Line have ads?
Which is updated more often, 1st Calc or Number Line?
Other comparisons
