Microwave Time Calculator vs Spool Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Microwave Time Calculator
Easily calculate microwave heating times based on wattage and desired duration. It offers a convenient chart for quick lookups and remembers your frequently used settings. This tool serves as a helpful guide for optimal food preparation.
- Heating time conversion by wattage
- Quick lookup chart
- Retains previous entries
- Supports 100W to 3000W
- Calculates 10 seconds to 30 minutes
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This app provides a converter that can calculate the heating time according to the wattage of your microwave oven, or you can also use a chart to quickly check the heating time. The supported wattage ranges from 100W to 3000W in 10-watts increments, and the supported heating time from 10 seconds to 30 minutes. The previously entered values when you close the app are automatically retained, so you don't have to re-enter the wattage you use frequently. *The heating time calculated by this application is only a guide. The actual heating time depends on the model of the microwave oven, the condition of the food or drink, and the difference in wattage between before and after conversion. The developer assumes no responsibility or liability for any problems or damages caused by using this application.
Spool Tracker
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Know exactly how much filament you have — and what every print costs. Add your whole shelf in minutes, then stop guessing for good. SpoolVault is a filament inventory built for 3D printing. Weigh a spool, log a print, and you always know what's left, what it cost, and which printer or shelf it's sitting on. ADD YOUR WHOLE SHELF IN MINUTES Pick a brand and a material, tap every color you own, set how many of each, and save them all in one go. Then do the same for your next brand. Brands, materials and colors come preloaded for Bambu Lab, eSUN, Polymaker, Prusament, Hatchbox, Overture, Inland, Sunlu, Elegoo and BIQU. KNOW WHAT'S LEFT ON EVERY SPOOL Put a spool on any kitchen scale and enter the number. SpoolVault subtracts the empty spool's weight and tells you the filament remaining. Brand-specific spool weights are already built in, so it's a real figure, not a guess. KNOW WHAT EVERY PRINT COSTS Enter what you paid for a spool and SpoolVault works out the material cost of every print from the grams used — so you finally know what the thing you just made actually cost. KNOW WHERE EVERY SPOOL IS Assign spools to a printer, an AMS or multi-material slot, and a storage location — drybox, shelf, cupboard, wherever they really live. Then find any color in seconds. GROUP A BUILD INTO A PROJECT Multi-plate print? Group the plates under one named project and see total filament used, estimated material cost, and a full breakdown of every spool that went into it. Also in the app: • Opened and unopened spools, tracked separately • Full weight history for every spool, so you can watch it come down • Search, sort and filter your whole collection • Custom brands, colors and spool weights • Saved spool-weight defaults for the spools you reuse • Export a backup of your inventory any time • No account, no sign-in — your inventory lives on your device • Works offline, in the workshop, with no signal • No ads • Free for 30 days — no subscription starts, nothing to cancel Know what's on the shelf. Know what it cost. Get back to printing. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.spoolvault.com/privacy-policy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Microwave Time Calculator at none against Spool Tracker's 2. Microwave Time Calculator also leads on iOS requirement (12.0 vs 15.0). Spool Tracker's advantage is ads (none vs shown) and update cadence (fortnightly vs every 5 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
Both are free to download. Spool Tracker sells 2 in-app purchases, starting at $4.99 per month. Microwave Time Calculator asks for nothing beyond the download.
Microwave Time Calculator ships an update every 5 months, Spool Tracker fortnightly. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.
| Parameter | Microwave Time Calculator | Spool Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 27 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Yudai Abe | Three19 Pty Ltd |
In-app purchases
Microwave Time Calculator
No in-app purchases
Spool Tracker
- SpoolVault Premium$4.991 Month
- SpoolVault Premium$49.991 Year
Questions
Is Microwave Time Calculator free?
Is Spool Tracker free?
Do Microwave Time Calculator or Spool Tracker have ads?
Which is updated more often, Microwave Time Calculator or Spool Tracker?
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