QuackyBrush vs FlipStudy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QuackyBrush
Create and paint 3D models using intuitive tools and primitives. Sculpt characters, props, or geometric art, then bring them to life with color. Save your creations and render them in scenes.
- Place and manipulate 3D primitives
- Negative-space carving
- Group and pre-bake model components
- Mirroring for symmetry
- Direct surface painting
- Scene creation with lighting
- AR placement
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QuackyBrush 3D is a freestyle 3D modeler and painter. Tap to place primitives — 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.
FlipStudy
Create and study flashcards with spaced repetition to improve learning. Supports multiple study modes, automatic definition generation, and translation. Syncs across devices and prioritizes user privacy with no ads or analytics.
- Spaced repetition study system
- Multiple study modes (Flip, Type It, Quiz, Match)
- Automatic definition generation
- Built-in device translation
- Speech recognition for answers
- Daily goals and streaks
- iCloud syncing across devices
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FlipStudy is a bright, friendly flashcard app for students and language learners. Make a deck, add cards, and study with spaced repetition (a Leitner box system) that brings back the cards you miss more often — so you spend your time on what you haven't learned yet. FOUR WAYS TO STUDY - Flip: see the question, flip for the answer - Type It: type the answer from memory (small typos are forgiven) - Quiz: pick the right answer from a few choices - Match: race to pair every question with its answer ADD WORDS IN SECONDS Paste or type a list of words and FlipStudy writes a kid-friendly definition for each (FlipStudy Pro, with Apple Intelligence). Check them, change any you like, and they're in your deck. TRANSLATE AS YOU GO Type the English side of a card and let the built-in translator fill in the other side — Italian, Spanish, French, German, Portuguese, Japanese, or Chinese. It runs on your device: free and private. Prefer to type the answer yourself? You can. HEAR IT SPOKEN Tap Listen to hear the answer read aloud in its own language, not an English voice — or say the answer out loud and FlipStudy checks it. KEEP THE STREAK GOING - A daily goal and a streak to come back for - An optional daily reminder, only on days something is due - A Home Screen widget that shows the cards waiting for you MAKE IT YOURS Give every deck its own color and emoji, and pick FlipStudy's app icon — an A+ or a 100, in nine colors. ON ALL YOUR DEVICES Your decks sync through your own iCloud account to your iPhone and iPad. PRIVATE BY DEFAULT No accounts. No ads. No analytics. Your decks stay on your devices and in your own private iCloud, and the Apple Intelligence features run on your iPhone. An optional cloud translation feature (off by default) uses your own API key and sends text directly to your chosen provider — never through us. FLIPSTUDY PRO A one-time purchase unlocks the Apple Intelligence features: make a deck from a typed subject, turn a photo of a page into cards, and write definitions for your words. Requires an iPhone with Apple Intelligence.
Screenshots
Verdict
The clearest difference is in-app purchases: QuackyBrush at none against FlipStudy's 1. QuackyBrush also leads on ratings volume (3 vs 1) and iOS requirement (18.0 vs 26.0). On price, rating, ads 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
Both are free to download. FlipStudy sells 1 one-off in-app purchase. QuackyBrush asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for QuackyBrush against 5.0 for FlipStudy. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
| Parameter | QuackyBrush | FlipStudy |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (1 ratings) |
| Number of ratings | 3 — better | 1 |
| Update frequency | — | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 22 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | Porter360, LLC | Richard Wheatley |
In-app purchases
QuackyBrush
No in-app purchases
FlipStudy
- FlipStudy Pro$0.99








