Comparison

Number Line Math K2 vs Bitsboard Flashcards & Games

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

Head to head
About

Number Line Math K2

This app helps young learners practice addition, subtraction, and comparison skills up to 20 using an interactive number line. Users can customize problems to focus on different unknown quantities and specific math facts.

Highlights
  • Addition and subtraction up to 20
  • More Than/Less Than comparisons
  • Interactive number line tool
  • Customizable unknown quantities
  • Selectable math facts to practice
Features
Read full description

Practice addition and subtraction facts with sums and minuends to 20. Or work with "More Than" and "Less Than" sentences. For example: What number is 5 more than 6? What number is 3 less than 7? Use a number line as a tool for solving the problems. Adjust the options to include any combination of Result, Change, or Start as the unknown quantity. Select the facts to practice.

About

Bitsboard Flashcards & Games

This app makes learning fun and effective with over 35 interactive educational games and activities. Create custom lessons, track progress, and sync content across devices. It's designed for students and educators to master subjects like languages, spelling, and reading through engaging gameplay.

Highlights
  • 35+ educational games and study modes
  • Create custom lessons with images and audio
  • Multiplayer and single-player mini-games
  • Progress tracking and detailed reports
  • Cross-device content syncing
  • Private classroom feature
  • Accessibility options including switch control
Features
Read full description

A top 5 education game in the U.S. 2021 Academic Choice Awards Winner Spark excitement for learning with Bitsboard – an interactive learning app trusted by over 5 million parents, teachers and students worldwide. Create your own learning experience with 35+ educational activities, join a private classroom or dive into thousands of hand-curated flashcard decks – whatever you want to learn, Bitsboard is here to make it fun and make it stick! What you can do with the Bitsboard app: Teachers • Create lessons in minutes with beautiful images and clear audio • Adapt lessons to an individual user’s learning speed • Encourage higher level thinking with fun single/multiplayer mini-games • Keep track of individual progress • Automatically back up and sync data across devices Students • Turn boring assignments into addictive mini-games • Master languages, vocab, reading, spelling and more • Compete in multiplayer games with classmates • Study at your own pace or with others OVER 35+ POWERFUL MINI GAMES / STUDY MODES IN 1 APP INCLUDING • Flashcards • Photo Touch • Memory Cards (1-4 players) • Pop Quiz • Match Up • Word Builder • Sentence Builder • Spelling Bee • BINGO (1-4 players) • Letter Tracing • Sequencing • Related Items • Word Search • Crosswords • Letter Match • Odd One Out • What Comes Next? • Side by Side • Word Chunks • Reader • Questions Game • Photo Hunt (1-4 players) • Racing Rivals (2 players) • Battle Time (2 players) TRACKS YOUR PROGRESS • Bitsboard keeps track of every answer for every game, user, and board SUPPORTS MULTIPLE USERS • Detailed stats and progress reports for each user • Automatically save games and boards settings at the user level ACCESSIBILITY OPTIONS • Bitsboard fully supports switch control to make all of the games accessible for users with disabilities ORGANIZE YOUR BOARDS • Easily group your boards into classes ACCELERATE YOUR LEARNING • Bitsboard's learning algorithm automatically personalizes each game based on the players skills. SHARE AND SYNC CONTENT ACROSS DEVICES • Automatically back up and sync data across devices BITSBOARD CLASSES • Share and automatically sync all of your content with other users / students on other devices • Bitsboard classes are private - only you and the students you approve see your content CLOUD SYNC • With cloud sync all of your boards, students, classes, and settings are automatically backed up and sync across all of your devices QR LOGIN CARDS • To protect student’s privacy you can generate student accounts without any email or password.  Once created, you can share the login details of each student account via a simple QR login card.  Just email the QR code to your student and they will be able to download the free Bitsboard app and log into their Bitsboard account. BITSBOARD PRO SUBSCRIPTION DETAILS   The basic version of Bitsboard is FREE for all users. Premium features can be unlocked with an in-app subscription.    Bitsboard Premium Subscription:   • Unlimited access to all 500+ Premium Classes and Featured Boards + up to 10 new premium Classes per month • Add unlimited number of students and classes • Use "Cloud Sync" to sync and backup all boards, classes, and students   Payment will be charged to your iTunes Account at confirmation of purchase. Your subscription will automatically renew unless cancelled at least 24-hours before the end of the current period. You will not be able to cancel a subscription during the active period. Your subscription may be managed and auto-renewal may be turned off by going to your Account Settings after purchase.     support@happymooseapps.com Privacy Policy: http://bitsboard.com/privacy-policy Subscription Terms: http://bitsboard.com/subscription-terms Have questions? We are here to help. Email us at support@happymooseapps.com Privacy Policy: http://bitsboard.com/privacy-policy Subscription Terms: http://bitsboard.com/subscription-terms

Screenshots

Bitsboard Flashcards & Games4 screens

Verdict

The call

The clearest difference is rating: Bitsboard Flashcards & Games at 4.4 against Number Line Math K2's 1.0. Bitsboard Flashcards & Games also leads on update cadence (every 3 weeks vs every 12 months) and ratings volume (1K vs 2). Number Line Math K2's advantage is in-app purchases (none vs 10) and iOS requirement (10.0 vs 14.0). On price and ads 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

Both are free to download. Bitsboard Flashcards & Games sells 10 in-app purchases, starting at $4.99 per month. Number Line Math K2 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Bitsboard Flashcards & Games holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Bitsboard Flashcards & Games has 1K ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Number Line Math K2 ships an update every 12 months, Bitsboard Flashcards & Games every 3 weeks. Both last shipped on November 1, 2026.

Scorecard7 real differences · 3 level
Number Line Math K2 versus Bitsboard Flashcards & Games: the parameters behind the verdict, then further details
ParameterNumber Line Math K2Bitsboard Flashcards & Games
PriceFreeFree
Rating1.0 (2 ratings)4.4 (1K ratings) — better
Positive reviews—81.4% of reviews
Number of ratings21K — better
Update frequencyEvery 12 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS10.0 — better14.0
Further details — not scored
Size34 MB136 MB
Age rating4+4+
DeveloperClassroom Focused SoftwareHappy Moose Apps

Customer experience

Number Line Math K2

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%

Bitsboard Flashcards & Games

All ratings1,013 ratings
Positive84.7%
Neutral5.0%
Negative10.3%
Written reviews226 reviews
Positive81.4%
Neutral4.4%
Negative14.2%

Bugs and requests

Number Line Math K2

Not enough reviews yet to summarise bugs or requests.

Bitsboard Flashcards & Games

Reported bugs

4 issues
  • Tracing game not working properly
  • Audio not playing correctly in some games
  • Inconsistent login and access issues
  • Boards and settings randomly disappearing

Requested features

5 requests
  • Ability to arrange games in a specific order
  • Option to import audio files instead of recording
  • Support for multiple fonts, including IPA
  • Easier board editing and navigation
  • Improved organization and folder support for boards

In-app purchases

None

Number Line Math K2

No in-app purchases

10 purchases

Bitsboard Flashcards & Games

Subscriptions2
  • Unlock All Subscription7 Days trial$4.991 Month
  • Unlock All Subscription$29.991 Year
One-time8
  • Image Search Upgrade$0.99
  • Add Unlimited Users$3.99
  • Unlock All Premium Classes$14.99
Show 5 more
  • Unlock All Features$14.99
  • Unlock All Games$19.99
  • Unlock Everything$24.99
  • Unlock Everything$47.99
  • Bitsboard Superpowers License (Unlocks ALL premium features)$49.99

Questions

Is Number Line Math K2 free?
Number Line Math K2 is free to download, with no in-app purchases.
Is Bitsboard Flashcards & Games free?
Bitsboard Flashcards & Games is free to download, with in-app purchases available.
Which has better reviews, Number Line Math K2 or Bitsboard Flashcards & Games?
Bitsboard Flashcards & Games is rated higher. Number Line Math K2 averages 1.0 out of 5 from 2 ratings, while Bitsboard Flashcards & Games averages 4.4 from 1K ratings.
Do Number Line Math K2 or Bitsboard Flashcards & Games have ads?
Neither Number Line Math K2 nor Bitsboard Flashcards & Games shows ads.
Which is updated more often, Number Line Math K2 or Bitsboard Flashcards & Games?
Number Line Math K2 ships an update every 12 months, and Bitsboard Flashcards & Games every 3 weeks. Most recently, Number Line Math K2 was updated on November 1, 2026 and Bitsboard Flashcards & Games on November 1, 2026.

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