Comparison

Master Books vs TT Geometry

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

Head to head
About

Master Books

This app connects homeschooling families using a specific curriculum. Users can interact with staff, authors, and other power users for support and updates. It also provides exclusive offers from the curriculum provider.

Highlights
  • Connect with staff and authors
  • Get support from power users
  • Receive curriculum updates
  • Access exclusive offers
  • Homeschooling community forum
Features
Read full description

The place for the community of Master Books curriculum users to connect and get support in their homeschooling journey. Connect with Master Books staff, authors, and power users. Get support, updates and exclusive offers from MasterBooks.com.

About

TT Geometry

This app enhances a geometry course with independent learning and on-the-go access, even offline for up to six lessons. It offers audiovisual lectures, practice problems, automated grading, and detailed explanations, making math engaging for students.

Highlights
  • Offline access for up to 6 lessons
  • 110 audiovisual lectures
  • Thousands of practice problems
  • Automated grading and instant feedback
  • Step-by-step audiovisual explanations
  • Parental progress tracking
  • Digitized textbook with search
Read full description

The Teaching Textbooks Geometry app makes your TT course even better! Not only will your student enjoy math while learning independently, but, with the app, that learning can also take place on the go. Even when offline! Specifically, the app can be used offline for up to 6 lessons at a time. That makes it perfect for homeschool parents who need their kids to stay productive while the family is out and about during the day. The app’s other features include… • 110 audiovisual lectures that teach every core concept in the standard 10th grade curriculum • thousands of problems that give students all the practice they need to master each concept • automated grading and instant feedback for every single problem • step-by-step audiovisual explanations to every single problem so students can see exactly what they did wrong when mistakes are made (This makes the program feel as if a tutor is at the student’s side!) • parental controls that let you track your student’s progress • the digitized version of the printed Teaching Textbooks Geometry textbook (with a search feature and a hyper-linked index) • no advertising or in-app purchase offers • Internet connectivity is required, but you can remain offline for up to 6 lessons.

Screenshots

Master Books4 screens
TT Geometry4 screens

Verdict

The call

The clearest difference is rating: Master Books at 4.9 against TT Geometry's 3.6. Master Books also leads on ratings volume (931 vs 44). TT Geometry's advantage is device support (4 vs 1) and iOS requirement (12.0 vs 18.0). On price, review sentiment, update cadence 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Master Books holds the better App Store score, 4.9 against 3.6. That said, the two scores are not equally well evidenced: Master Books has 931 ratings behind it against 44, so its average is the more settled of the two. Written reviews complicate that: 71% of Master Books's written reviews are positive against 78% of TT Geometry's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Master Books ships an update every 3 months, TT Geometry every 2 months. The most recent releases landed on October 21, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
Master Books versus TT Geometry: the parameters behind the verdict, then further details
ParameterMaster BooksTT Geometry
PriceFreeFree
Rating4.9 (931 ratings) — better3.6 (44 ratings)
Positive reviews70.8% of reviews78.3% of reviews — better
Number of ratings931 — better44
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad, iPod, Mac — better
Requires iOS18.012.0 — better
Further details — not scored
Size85 MB99 MB
Age rating17+4+
DeveloperMaster BooksTeaching Textbooks, Inc.

Customer experience

Master Books

All ratings931 ratings
Positive98.4%
Neutral0.3%
Negative1.3%
Written reviews24 reviews
Positive70.8%
Neutral0.0%
Negative29.2%

TT Geometry

All ratings44 ratings
Positive65.9%
Neutral6.8%
Negative27.3%
Written reviews23 reviews
Positive78.3%
Neutral8.7%
Negative13.0%

Bugs and requests

Master Books

Reported bugs

2 issues
  • Unable to log in
  • App not working after update

Requested features

2 requests
  • Picture-in-picture mode for live streams
  • More flexibility in discussions and recommendations

TT Geometry

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Master Books

No in-app purchases

None

TT Geometry

No in-app purchases

Questions

Is Master Books free?
Master Books is free to download, with no in-app purchases.
Is TT Geometry free?
TT Geometry is free to download, with no in-app purchases.
Which has better reviews, Master Books or TT Geometry?
Master Books is rated higher. Master Books averages 4.9 out of 5 from 931 ratings, while TT Geometry averages 3.6 from 44 ratings.
Do Master Books or TT Geometry have ads?
Neither Master Books nor TT Geometry shows ads.
Which is updated more often, Master Books or TT Geometry?
Master Books ships an update every 3 months, and TT Geometry every 2 months. Most recently, Master Books was updated on October 21, 2026 and TT Geometry on October 15, 2026.

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