Comparison

QuackyBrush vs Abacus Plus+

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

Head to head
About

QuackyBrush

Features
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QuackyBrush 3D is a freestyle 3D modeler and painter. Tap to place primitives โ€” sphere, ellipsoid, cylinder, capsule, cone, frustum, torus, box. Move, resize, rotate, mirror, group, and carve them into anything you can picture. When the shape is right, bake to fuse the primitives into a single smooth model. Then paint directly on the surface. Save as a Creation. Place it in a Scene with a movable light and other models. Render the scene to your camera roll. Built for everyone - ideal for 7+ (kids who play Minecraft/Roblox or other 3D games performed well in UX testing). The interface respects your time. Drag-first input on top of an SDF + smooth-min CSG engine. Premium creative ownership - buy once, no subscription. What you can make. Stuffed animals, cute characters, low-poly game assets, 3D-print-ready props, game mascots, geometric sculpture, snowmen, ducks, chess pieces, mushrooms, robots. The primitive set composes into more than its parts. Negative-space carving. Switch any primitive to Carve mode and it becomes a subtractive ghost - eye sockets, mouth slots, embossed details, cavities. Smooth-min CSG fillets the boundary so carves feel hand-shaped, not Boolean-clean. Groups + pre-bake. Build a head, group its parts, pre-bake the group into a single fused unit. Drag the head as one piece while you keep adding to the body. Mirror. X, Y, or Z. Place one ear, get the other automatically. Place one eye, get the second symmetric. Free trackball rotate. Drag in any direction - the model rotates around the axis perpendicular to your finger. Need axis-locked rotation? Switch to X / Y / Z sub-tools. Orthographic toggle: Faux-orthographic camera for design-grade views.

About

Abacus Plus+

Features
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Abacus Plus makes learning mental math simple, fun, and effective โ€” for kids and adults alike. Using the time-tested abacus method, Abacus Plus helps you build lightning-fast calculation skills through interactive practice, visual bead-based learning, and progressive difficulty levels. WHY ABACUS PLUS? - Learn the traditional abacus technique step by step - Practice addition, subtraction, multiplication, and division - Colorful, intuitive interface designed for focus and engagement - Track your speed and accuracy over time - Structured levels that grow with your skill PERFECT FOR - Kids building foundational math skills - Students preparing for competitive exams - Anyone who wants to sharpen mental calculation speed - Parents looking for a screen-time activity with real educational value HOW IT WORKS Abacus Plus combines the classic abacus method with modern, gamified practice sessions. Each exercise reinforces number sense and mental calculation, helping you go from counting beads to solving problems entirely in your head. Download Abacus Plus today and start your journey to faster, sharper mental math. LEGAL Privacy Policy: https://vijayvir.github.io/abacus_PrivacyPolicy.txt Terms of Use: https://vijayvir.github.io/abacus_Terms.txt Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support & Contact: virvijay37@gmail.com Made by Vijayvir Singh (Antfire Labs).

Screenshots

QuackyBrush4 screens
Abacus Plus+4 screens

Verdict

The call

The clearest difference is iOS requirement: QuackyBrush at 18.0 against Abacus Plus+'s 26.5. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference ยท 5 level
QuackyBrush versus Abacus Plus+: the parameters behind the verdict, then further details
ParameterQuackyBrushAbacus Plus+
PriceFreeFree
Update frequencyโ€”Every 4 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 โ€” better26.5
Further details โ€” not scored
Size22 MB10 MB
Age rating4+4+
DeveloperPorter360, LLCVijayvir Singh

In-app purchases

None

QuackyBrush

No in-app purchases

None

Abacus Plus+

No in-app purchases

Questions

Is QuackyBrush free?
QuackyBrush is free to download, with no in-app purchases.
Is Abacus Plus+ free?
Abacus Plus+ is free to download, with no in-app purchases.
Do QuackyBrush or Abacus Plus+ have ads?
Neither QuackyBrush nor Abacus Plus+ shows ads.

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