JavaScript Studio Pro vs SpoolFlux
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JavaScript Studio Pro
Develop web applications on your mobile device using JavaScript, CSS, and HTML. This tool offers error checking assistance as you code, ensuring you don't lose track of your ideas. Create and save your projects anywhere, anytime.
- Write JavaScript, CSS, HTML code
- Create web applications
- Error checking assistance
- Save code and ideas
- Mobile development environment
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Use your JavaScript, CSS, html skills to create apps wherever you go. These days many of us we use a smartphone anytime, as a developers sometimes we write code using some text editor to save it, for this reason I developed JavaScript Studio app a smart app that works on your phone, With JavaScript Studio you can create web apps by writing JavaScript code, CSS, Html, Html5. Error Checking? Yes, JavaScript Studio will help on it while coding by inserting a simple comment text. Never Miss any code and idea again Use JavaScript Studio Pro. ARROWAT™ JavaScript Studio Pro.
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 JavaScript Studio Pro's $12.99. SpoolFlux also leads on update cadence (weekly vs every 20 months) and ratings volume (8 vs 1). JavaScript Studio Pro's advantage is device support (3 vs 1) and iOS requirement (10.0 vs 18.6). On rating, ads and in-app purchases 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; JavaScript Studio Pro costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for JavaScript Studio Pro against 5.0 for SpoolFlux. That said, the two scores are not equally well evidenced: SpoolFlux has 8 ratings behind it against 1, so its average is the more settled of the two.
JavaScript Studio Pro ships an update every 20 months, SpoolFlux weekly. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.
| Parameter | JavaScript Studio Pro | SpoolFlux |
|---|---|---|
| Price | $12.99 | Free — better |
| Rating | 5.0 (1 ratings) | 5.0 (8 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 8 — better |
| Update frequency | Every 20 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 10.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 33 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Arrowat LLC | Reimar Metzen |
Customer experience
JavaScript Studio Pro
SpoolFlux
In-app purchases
JavaScript Studio Pro
No in-app purchases
SpoolFlux
No in-app purchases
Questions
Is JavaScript Studio Pro free?
Is SpoolFlux free?
Which has better reviews, JavaScript Studio Pro or SpoolFlux?
Do JavaScript Studio Pro or SpoolFlux have ads?
Which is updated more often, JavaScript Studio Pro or SpoolFlux?
Other comparisons
