Clay Box vs SpoolFlux
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Clay Box
Discover and create clay recipes, design color palettes using photos, and find complementary colors. Search for recipes by specific clay colors or explore their appearance in blends. Supports multiple popular clay brands.
- Access clay recipe database
- Create custom recipes
- Design color palettes from photos
- Find analogous/complementary colors
- Search recipes by color
- Supports multiple clay brands
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Access the Clay Box database of recipes. Find new recipes as they are added by fellow clay enthusiasts, Create your own recipes using your favorite clay. Add a photo to capture the actual mix color. Design awesome color schemes by creating your own palettes with clay colors. Use a photo to pick the color you want to match. Find analogous or complementary clay colors for your palette. Search for recipes containing a specific clay color, or see how a specific color might look in a skinner blend Currently supported makes are: Cernit, Fimo, Kato, Premo, Sculpy III and Souffle
SpoolFlux
Manage NFC tags for 3D printer filament spools with support for various formats like OpenSpool and TigerTag. Features automatic color detection, temperature presets, and a comprehensive filament library. Integrates with the OpenFilament Database.
- Read/write multiple NFC tag formats
- Automatic color detection via TD1 device
- Customizable temperature presets
- Extensive filament and material library
- Support for multicolor filaments
- Import from OpenFilament Database
- Save, load, and export filament data
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iOS app for reading and writing NFC tags on 3D printer filament spools. Supports OpenSpool, OpenPrintTag, ACE Pro, and TigerTag. Features: - Multiple NFC formats: read and write OpenSpool (ISO 14443), OpenPrintTag (ISO 15693/SLIX2), ACE Pro, TigerTag, and OpenTag3D - TD1 filament scanner: automatic color detection via USB-MIDI (connect the TD1 device using a Lightning/USB-C adapter) - Extruder temperature range (150–420 °C, 5 °C steps) with Min/Max slider - Heated bed temperature range (0–160 °C, optional) - Temperature presets per material - 24 predefined colors, add your own - Multicolor filaments: create multiple colors per filament (e.g., for multicolor spools) - 42 materials (PLA, PETG, ABS, TPU, PEEK, and more), add your own - 21 material variants (Matte, Silk, Rainbow, Glow, Carbon, and more), add your own - 42 predefined filament brands, add your own brands - Optional filament properties: weight (250 g–10 kg), diameter (1.75 / 2.85 mm), Spoolman-compatible spool ID - Filament library: save, load, search filaments, and export/import as a .sftemplate file - OpenFilament Database (OFDB): import filament data from the community database - JSON preview with syntax highlighting
Screenshots
Verdict
The clearest difference is price: SpoolFlux at Free against Clay Box's $4.99. SpoolFlux also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 15). Clay Box's advantage is ratings volume (38 vs 8) and device support (3 vs 1). On 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
SpoolFlux is free to download; Clay Box costs $4.99 up front. Clay Box sells 15 one-off in-app purchases. SpoolFlux asks for nothing beyond the download.
SpoolFlux holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 38 and 8 respectively. Written reviews point the same way: 71% of Clay Box's written reviews are positive against 100% of SpoolFlux's.
Clay Box ships an update every 2 months, SpoolFlux weekly. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.
| Parameter | Clay Box | SpoolFlux |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.4 (38 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | 70.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 38 — better | 8 |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 9 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Sarah Hill | Reimar Metzen |
Customer experience
Clay Box
SpoolFlux
In-app purchases
Clay Box
- Earth tones palette - Prem0Free
- Greens palette - Premo$1.99
- Sandy Teal color palette$1.99
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- Orange Ombre palette$1.99
- Metallic Fall Colors$1.99
- Metallic Mermaid palette$1.99
- Sweater weather palette$1.99
- Succulent palette$1.99
- Blue Jeans palette$1.99
- Pink Lily palette$1.99
- Halloween Metallics - Premo$1.99
- Tutti Frutti palette$1.99
- Wildflower palette - Premo$1.99
- Pink sunset palette$1.99
- Adrift at Sea$1.99
SpoolFlux
No in-app purchases
Questions
Is Clay Box free?
Is SpoolFlux free?
Which has better reviews, Clay Box or SpoolFlux?
Do Clay Box or SpoolFlux have ads?
Which is updated more often, Clay Box or SpoolFlux?
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