Comparison

i临帖 vs GeoGebra 3D Calculator

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

Head to head
About

i临帖

Features
Read full description

古有颜真卿以黃土掃墻,歐陽修蘆荻代筆畫地學書;而今我們用iPhone練習書法! 如同真實的書寫,控制筆畫需要借鑑演示,耐心練習。用逆鋒慢速入筆,可以寫出較粗的筆道。加速移動并適時脫離,可寫出漂亮筆鋒。 - 以手指移動速度、加速度及壓力改變筆道寬度。 - 自动评分。 - 原碑欣賞。 - 每個字都有書寫演示,顯示軌跡。 - 可在米字格,九宮格和無格中切換。 - 可存儲所寫,并且可以改變大小和排列成為作品。 - 印章製作和嵌入。

About

GeoGebra 3D Calculator

This application allows users to solve 3D math problems, graph functions and surfaces, and create geometric constructions in 3D. It features augmented reality to place math objects in the real world and offers access to free learning activities.

Highlights
  • 3D function and surface plotting
  • Create 3D geometric objects
  • Augmented Reality integration
  • Interactive sliders and graphs
  • Access to learning activities
  • Save and share constructions
Features
Read full description

Easily solve 3D math problems, graph 3D functions and surfaces, create geometric constructions in 3D, save and share your results. With Augmented Reality enabled, you can place math objects on any surface and walk around them! Millions of people around the world use GeoGebra to learn mathematics and science. Join us: Dynamic Mathematics for everyone! • Plot f(x,y) functions and parametric surfaces • Create solids, spheres, planes and many more 3D objects • Get intersection points and cross-sections • Experience sliders, points, graphs and geometry all working together • Search for free learning activities directly from our app • Save and share your results with friends and teachers We’d love to hear from you: send us your questions or feedback via Twitter @geogebra or via https://help.geogebra.org

Screenshots

i临帖3 screens
GeoGebra 3D Calculator4 screens

Verdict

The call

The clearest difference is price: GeoGebra 3D Calculator at Free against i临帖's $0.99. i临帖's advantage is iOS requirement (14.0 vs 16.0). On update cadence, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

GeoGebra 3D Calculator is free to download; i临帖 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

i临帖 ships an update every 6 weeks, GeoGebra 3D Calculator monthly. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.

Scorecard2 real differences · 8 level
i临帖 versus GeoGebra 3D Calculator: the parameters behind the verdict, then further details
Parameteri临帖GeoGebra 3D Calculator
Price$0.99Free — better
Rating—4.0 (52 ratings) — better
Positive reviews—65.8% of reviews
Number of ratings—52 — better
Update frequencyEvery 6 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.0 — better16.0
Further details — not scored
Size53 MB105 MB
Age rating4+4+
Developer小龙 高GeoGebra GmbH

In-app purchases

None

i临帖

No in-app purchases

None

GeoGebra 3D Calculator

No in-app purchases

Questions

Is i临帖 free?
i临帖 costs $0.99, with no in-app purchases.
Is GeoGebra 3D Calculator free?
GeoGebra 3D Calculator is free to download, with no in-app purchases.
Do i临帖 or GeoGebra 3D Calculator have ads?
Neither i临帖 nor GeoGebra 3D Calculator shows ads.
Which is updated more often, i临帖 or GeoGebra 3D Calculator?
i临帖 ships an update every 6 weeks, and GeoGebra 3D Calculator monthly. Most recently, i临帖 was updated on November 6, 2026 and GeoGebra 3D Calculator on November 11, 2026.

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