Foundations Memory Work C3 vs Number Builder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Foundations Memory Work C3
Enhance learning through memorization of quality content with art and song. This interactive app covers seven subject areas, including enhanced graphics, a timeline, and U.S. presidents.
- Memorize quality content
- Learn with art and song
- Interactive format
- Seven subject areas
- Enhanced graphics
- Classical Acts & Facts timeline
- U.S. presidents
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Classical Conversations® Foundations Memory Work Tutorials, Cycle 3 Strengthen your brain by memorizing quality content with art and song in a beautiful, interactive format in seven subject areas. New features include enhanced graphics and interactivity, Classical Conversations® Classical Acts & Facts® timeline, and the U.S. presidents! Classical Conversations® empowers homeschooling parents and establishes classical, Christian communities that equip children with a biblical worldview and the classical tools of learning in order to impact the world for God’s glory. Visit us online to learn more: ClassicalConversations.com ClassicalConversationsBooks.com Please send questions or comments to: customerservice@classicalconversations.com
Number Builder
This app helps solve math puzzles by calculating all possible equations from dice rolls and a target number. It supports basic arithmetic, powers, and roots, making it a useful tool for games like Number Knockout.
- Calculates all possible solutions
- Supports basic arithmetic
- Includes powers and roots
- Input dice rolls and target number
- Useful for Number Knockout game
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Number Builder turns dice rolls into a hands-on way to practice mental math. SOLVE MODE Roll three dice, enter a target number, and see every way to combine your dice — using addition, subtraction, multiplication, division, exponents, and roots — to reach it. Great for checking your own work or discovering paths you hadn't thought of. CHALLENGE MODE Roll a set of dice and a target, then build the answer yourself — tapping dice and operators into place, left to right, with instant feedback when you're right. Six levels of difficulty take you from simple addition all the way up to exponents, fractional exponents, and roots, with targets up to 1,000. Challenge mode includes 3 free puzzles to try. After that, it unlocks with a single one-time purchase — no subscriptions, and Family Sharing means one purchase covers your whole family. BUILT FOR PRACTICE Six progressively harder levels, each changing exactly one thing about the challenge Customizable dice colors and styles Full support for larger text sizes and VoiceOver Solve mode stays completely free, no purchase required No data is collected. No ads, ever.
Screenshots
Verdict
The clearest difference is review sentiment: Number Builder at 100% against Foundations Memory Work C3's 36%. Number Builder also leads on price (Free vs $9.99) and rating (4.9 vs 3.6). Foundations Memory Work C3's advantage is in-app purchases (none vs 1) and ratings volume (171 vs 7). On ads, monetization model and device support 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
Number Builder is free to download; Foundations Memory Work C3 costs $9.99 up front. Number Builder sells 1 one-off in-app purchase. Foundations Memory Work C3 asks for nothing beyond the download.
Number Builder holds the better App Store score, 4.9 against 3.6. That said, the two scores are not equally well evidenced: Foundations Memory Work C3 has 171 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 36% of Foundations Memory Work C3's written reviews are positive against 100% of Number Builder's.
Foundations Memory Work C3 ships an update every 16 months, Number Builder every 39 months. The most recent releases landed on September 21, 2026 and August 12, 2026 respectively.
| Parameter | Foundations Memory Work C3 | Number Builder |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 3.6 (171 ratings) | 4.9 (7 ratings) — better |
| Positive reviews | 36.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 171 — better | 7 |
| Update frequency | Every 16 months — better | Every 39 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Best chart rank | #11 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 739 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Classical Conversations | Widgetilities LLC |
Customer experience
Foundations Memory Work C3
Number Builder
Bugs and requests
Foundations Memory Work C3
Reported bugs
7 issues- Screen rotation issues
- App disrupts phone's screen rotation
- Content not loading correctly (e.g., only math)
- Outdated content (e.g., President Biden not listed)
- Latin pronunciation abysmal
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- No sound issues (related to mute switch)
- Quirky bugs with new app downloads
Requested features
22 requests- Organize material into a weekly format
- Add the Timeline song (in its entirety)
- Add President's Song
- Add States and Capitals song
- Add History song
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- Add Latin song
- Add Geography song
- Add quiz/test option
- Add games or interactive elements
- Add a study tracker
- Ability to navigate individual songs (slide forward/backward)
- Option to play whole week through
- Weekly breakdown view
- Visual depiction of memory work
- Update to 5th edition
- Include all content from CDs
- Add President's song update (post-Obama)
- Option to listen to all lessons in a row
- Option to play one subject's lessons from week 1 on
- Parental settings to prevent skipping ahead
- Optimize for iPhone X
- Discount for existing users
Number Builder
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Foundations Memory Work C3
No in-app purchases
Number Builder
- Unlock Challenge Mode$1.99
Questions
Is Foundations Memory Work C3 free?
Is Number Builder free?
Which has better reviews, Foundations Memory Work C3 or Number Builder?
Do Foundations Memory Work C3 or Number Builder have ads?
Which is updated more often, Foundations Memory Work C3 or Number Builder?
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