NumBots vs Number Line
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NumBots
This platform helps children master mental addition and subtraction, moving them from counting to calculating. It focuses on building understanding, recall, and fluency in these core math skills. Designed for early learners, it offers an engaging way to achieve mathematical proficiency.
- Master mental addition
- Master mental subtraction
- Build understanding
- Develop recall
- Achieve fluency
- Transition from counting to calculating
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Addition & Subtraction. Solved. From the innovators who bring you Times Tables Rock Stars, comes a highly engaging platform for learning to add and subtract… NumBots! NumBots is all about every child achieving the “triple win” of understanding, recall and fluency in mental addition and subtraction, so that they move from counting to calculating. Suitable from Year 1 (UK) or Kindergarten (US) upwards. Younger players will be able to access the early stages from a mathematical point of view but will find it increasingly harder to reach the level of fluency required to make continued progress.
Number Line
This app provides an interactive number line for educational purposes, enabling users to visualize numbers, perform various math games, and practice rounding. Its simple interface supports zooming, swiping, and marking numbers with pins or freehand drawing.
- Infinite number line visualization
- Rounding practice (nearest 10, 100, 10,000)
- Number comparison
- Pinch-to-zoom functionality
- Swipe navigation
- Search for specific numbers
- Pin marking
- Freehand drawing tool
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An infinite number line to use in the classroom, with a simple design that allows for numerous maths games and challenges! • Ask the class to round to the nearest 10/100/10,000. • Visualise the size of numbers relative to one another, including negatives. How to use: • Zoom with a pinch • Swipe along the number line • Go to a number by typing in the search box • Drag and drop pins to mark numbers • Draw free-hand with the pen tool
Screenshots
Verdict
The clearest difference is review sentiment: Number Line at 100% against NumBots's 66%. Number Line also leads on rating (5.0 vs 4.7). NumBots's advantage is update cadence (every 5 weeks vs every 15 months) and ratings volume (304 vs 4). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Number Line holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: NumBots has 304 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 66% of NumBots's written reviews are positive against 100% of Number Line's.
NumBots ships an update every 5 weeks, Number Line every 15 months. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.
| Parameter | NumBots | Number Line |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (304 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 66.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 304 — better | 4 |
| Update frequency | Every 5 weeks — better | Every 15 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 31 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Maths Circle Ltd | Blastoff Design |
Customer experience
NumBots
Number Line
Bugs and requests
NumBots
Reported bugs
5 issues- Coins and stars not tracking correctly
- Login issues across devices
- Keyboard not showing up on tablets
- Levels randomly locked or missing
- App crashing and freezing
Requested features
5 requests- More advanced levels and content
- Ability to skip to appropriate level
- Less emphasis on speed, more on accuracy
- Family account support
- Improved login and persistence
Number Line
Not enough reviews yet to summarise bugs or requests.
In-app purchases
NumBots
No in-app purchases
Number Line
No in-app purchases
