Comparison

SpoolStack vs TagWriter4CFS Mobile

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

Head to head
About

SpoolStack

Read full description

Never run out of filament mid-print again. SpoolStack is the ultimate inventory manager for 3D printing enthusiasts. Whether you have five spools or five hundred, SpoolStack removes the guesswork from your workshop so you can focus on creating, not stocktaking. EFFORTLESS INVENTORY MANAGEMENT Quick Add — add new spools in seconds with brand and type presets Visual Swatches — colour-coded swatches and Favourites for your go-to materials Smart Thresholds — custom Red and Amber alerts so you know exactly when to reorder On Order Tracking — mark spools as on order with a smart reminder to confirm your order was placed Settings & Support — rate the app, restore purchases, and get in touch directly from within the app SYNCS ACROSS ALL YOUR DEVICES — FREE Your inventory stays up to date everywhere. Add a spool on your iPhone, see it instantly on your iPad or any other iCloud-connected device. Cloud sync is included for every SpoolStack user, no subscription required. REORDER IN SECONDS Auto-Link — SpoolStack automatically matches your filament to reorder links One-Tap Shopping — buy the exact brand and colour you need without searching order histories Broad Support — optimised for Elegoo, Bambu Lab, eSUN, Polymaker, Sunlu, and more GO HANDS-FREE WITH PRO NFC Tagging — tap your phone to an NFC-tagged spool to subtract stock instantly QR Workflow — generate custom labels and scan to update inventory in a flash Unlimited Inventory — remove the 15-spool limit and track your entire collection TAKE CONTROL OF YOUR FILAMENT SpoolStack is free to use for up to 15 spools with cloud sync included. Join the pro makers using SpoolStack Pro to streamline their workflow with unlimited spools and hardware tagging. Privacy Policy: http://bit.ly/3PcUgFE Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

TagWriter4CFS Mobile

This utility app streamlines filament tag creation for 3D printing. It connects to your printer to fetch live spool data, allowing you to quickly generate accurate tags with material, color, and spool status information. Reduce manual entry and keep your filament organized with this reliable tool.

Highlights
  • Create consistent filament tags
  • Fetch live CFS slot data
  • Review material, color, and spool status
  • Write tags in a few taps
  • Reduce manual entry
  • Organize filament setup
Features
Read full description

TagWriter4CFS helps you create consistent filament tags using Drop down lists or even from live CFS slot data from your printer. Enter your printer IP, fetch current slot information, and review material, colour, and spool status before writing. Select any slot, copy its data, and write a tag in just a few taps. Built for day-to-day reliability, TagWriter4CFS reduces manual entry and helps prevent mismatched tag details. Whether you run one spool or multiple CFS units, you can produce accurate tags faster and keep your filament setup organised. Requires compatible CFS/printer data access and tag-writing hardware.

Screenshots

SpoolStack4 screens
TagWriter4CFS Mobile4 screens

Verdict

The call

The clearest difference is update cadence: SpoolStack at every 2 days against TagWriter4CFS Mobile's every 5 days. On price, ads, in-app purchases 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. SpoolStack sells 2 in-app purchases, starting at $4.99 per month and TagWriter4CFS Mobile sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SpoolStack ships an update every 2 days, TagWriter4CFS Mobile every 5 days. The most recent releases landed on June 1, 2026 and September 26, 2026 respectively.

Scorecard1 real difference · 9 level
SpoolStack versus TagWriter4CFS Mobile: the parameters behind the verdict, then further details
ParameterSpoolStackTagWriter4CFS Mobile
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 2 days — betterEvery 5 days
AdsNoNo
In-app purchasesYesYes
Monetization—Free
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size13 MB3 MB
Age rating4+4+
DeveloperMatthew Howellrob coops

In-app purchases

2 purchases

SpoolStack

Subscriptions2
  • SpoolStack Pro Monthly$4.991 Month
  • SpoolStack Pro Yearly$49.991 Year
1 purchases

TagWriter4CFS Mobile

One-time1
  • Unlock Write Access.$3.99

Questions

Is SpoolStack free?
SpoolStack is free to download, with in-app purchases available.
Is TagWriter4CFS Mobile free?
TagWriter4CFS Mobile is free to download, with in-app purchases available.
Do SpoolStack or TagWriter4CFS Mobile have ads?
Neither SpoolStack nor TagWriter4CFS Mobile shows ads.
Which is updated more often, SpoolStack or TagWriter4CFS Mobile?
SpoolStack ships an update every 2 days, and TagWriter4CFS Mobile every 5 days. Most recently, SpoolStack was updated on June 1, 2026 and TagWriter4CFS Mobile on September 26, 2026.

Other comparisons