Comparison

看空气 vs Spool Master

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

Head to head
About

看空气

Features
Read full description

1、此App用于跟特定的硬件设备通过蓝牙连接,同步并显示硬件传递过来的数据,主要包括PM2.5、PM10、温度、湿度等空气质量数据。 2、App可通过与服务器通信,上传硬件传递过来的空气质量数据。在登录成功后可从服务器获取历史数据。

About

Spool Master

Manage your 3D printing filament stock with NFC tag reading/writing, inventory tracking, and smart shopping lists. Optimize expenses and reduce waste for hobbyists and professionals.

Highlights
  • NFC reading and writing for spool tags
  • Complete inventory management
  • Detailed statistics and value tracking
  • Automatic low stock alerts
  • Smart shopping list generation
  • Print settings configuration
  • Multi-device synchronization
Features
Read full description

Spool Master - The complete app to manage your 3D printing filament stock MAIN FEATURES NFC Reading and Writing • Read NFC chips from Anycubic and Prusa (OpenPrintTag) spools • Write your own custom NFC tags • Automatic tag detection Complete Inventory Management • Add spools by NFC scan or manually • Track remaining weight of each spool • Manage prices and calculate total value • Organize by brand, material and color • Automatic low stock alerts Detailed Statistics • Overview of your inventory • Total value of your stock • Number of materials, colors and brands • Automatic shopping list Smart Shopping List • Automatic addition of low stock spools • Mark ordered filaments • Add manually or by NFC scan Advanced Color Picker • Full palette with RGB sliders • Opacity support • Real-time preview Print Settings • Extruder temperatures (min/max) • Bed temperatures (min/max) • Filament diameter • Spool length COMPATIBILITY • Anycubic: Full reading and writing • Prusa: OpenPrintTag reading and writing (NFC-V) • Generic NFC tags: Custom writing • All other brands, including Bambu Lab and Creality: manual entry with full inventory management • Support for 22 filament brands • Support for 25 material types (PLA, PETG, ABS, TPU, etc.) MULTILINGUAL App available in 40 languages SYNCHRONIZATION • Multi-device synchronization • Offline mode available UNITS AND CURRENCIES • Multiple currency support • Metric or imperial units • Automatic conversion MODERN INTERFACE • Dark and light mode • Sleek design • Intuitive navigation • Visual statistics SECURITY AND PRIVACY • Your data remains private • Secure local storage PREMIUM VERSION AVAILABLE • Cloud synchronization • Ad-free • Priority support Whether you're a hobby maker or a professional 3D printer, Spool Master helps you optimize your filament management, reduce waste and control your expenses. Download now and take control of your filament inventory! https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

看空气3 screens
Spool Master4 screens

Verdict

The call

The clearest difference is in-app purchases: 看空气 at none against Spool Master's 2. 看空气 also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). Spool Master's advantage is update cadence (every 3 days vs every 9 months). On price 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

Both are free to download. Spool Master sells 2 in-app purchases, starting at $1.99 per month. 看空气 asks for nothing beyond the download.

UpkeepUpdate frequency

看空气 ships an update every 9 months, Spool Master every 3 days. Both last shipped on October 17, 2026.

Scorecard4 real differences · 5 level
看空气 versus Spool Master: the parameters behind the verdict, then further details
Parameter看空气Spool Master
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 9 monthsEvery 3 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size19 MB41 MB
Age rating4+4+
DeveloperShenzhen Everbest Machinery Industry Co.,LtdSebastien Girod

In-app purchases

None

看空气

No in-app purchases

2 purchases

Spool Master

Subscriptions2
  • Spool Master Monthly$1.991 Month
  • Spool Master Yearly$9.991 Year

Questions

Is 看空气 free?
看空气 is free to download, with no in-app purchases.
Is Spool Master free?
Spool Master is free to download, with in-app purchases available.
Do 看空气 or Spool Master have ads?
Spool Master shows ads; 看空气 does not.
Which is updated more often, 看空气 or Spool Master?
看空气 ships an update every 9 months, and Spool Master every 3 days. Most recently, 看空气 was updated on October 17, 2026 and Spool Master on October 17, 2026.

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