Comparison

Spool Programmer vs LentOut

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

Head to head
About

Spool Programmer

This app allows users to program RFID tags for 3D printing filament spools. It supports various filament types and spool sizes, offering features like reading existing tags, checking memory, and custom color selection. All processing is done on-device for privacy and security.

Highlights
  • Write filament data to NTAG215/216 tags
  • 18 pre-configured filament profiles
  • Read and verify existing tags
  • Check tag status and memory
  • Format tags for programming
  • Custom color selection
  • Support for various spool sizes
Features
Read full description

Transform your 3D printing workflow with Spool Programmer, the essential tool for programming RFID tags on your filament spools. Whether you're using Anycubic printers or building your own filament management system, this app makes tag programming simple, fast, and reliable. POWERFUL FEATURES • Write complete filament data to NTAG215/216 tags in seconds • 18 pre-configured profiles covering all major filament types • Read existing tags to verify or clone configurations • Check tag status and memory layout • Format tags for fresh programming • Custom color selection with RGB sliders and 16 presets • Support for 500g, 1kg, and 2kg spool sizes • Configurable print temperatures (nozzle, bed, chamber) FILAMENT TYPES SUPPORTED PLA, PLA+, PLA Matte, PLA Silk, PETG, ABS, TPU, Nylon, ASA, PC, PVA, HIPS, and BVOH. Each profile includes optimized default temperatures that you can customize. INTUITIVE INTERFACE Beautiful card-based design that guides you through every step. Select your filament type, choose a color, adjust temperatures, and write—all in a clean, modern interface that follows Apple's design guidelines. SMART & SAFE • Automatic detection of write-protected tags • Clear error messages with helpful guidance • Validates tag compatibility before writing • Preview data before committing to tag • No account required, no tracking, no ads PERFECT FOR • Makers managing multiple filament spools • 3D printing enthusiasts with Anycubic printers • Anyone building custom filament management systems • Hackerspaces and makerspaces • Professional print farms TECHNICAL DETAILS Supports standard NTAG215 and NTAG216 NFC tags with 144-byte user memory. Uses the same data format as the ACE-RFID project, ensuring compatibility with existing ecosystems. All processing happens on-device—your data never leaves your iPhone. REQUIREMENTS iPhone 7 or later with NFC capability running iOS 16.0 or later. You'll need blank NTAG215 or NTAG216 tags (widely available online). Note: Pre-programmed manufacturer tags may be write-protected. FREE & OPEN Based on the community-driven ACE-RFID project. No subscriptions, no in-app purchases, no data collection. Built by makers, for makers. Start programming your filament tags today and take control of your 3D printing workflow!

About

LentOut

Features
Read full description

Tired of losing your stuff? Meet LentOut - your personal loan manager. We've all been there: you lend a book, tool, or game to a friend, then completely forget about it. Weeks later, you're left wondering - who has my things? When will I get them back? LentOut solves this everyday problem with

Screenshots

Spool Programmer2 screens
LentOut3 screens

Verdict

The call

The clearest difference is update cadence: Spool Programmer at every 5 days against LentOut's every 4 weeks. LentOut's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Spool Programmer ships an update every 5 days, LentOut every 4 weeks. Both last shipped on October 28, 2026.

Scorecard3 real differences · 7 level
Spool Programmer versus LentOut: the parameters behind the verdict, then further details
ParameterSpool ProgrammerLentOut
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 5 days — betterEvery 4 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.012.0 — better
Further details — not scored
Size3 MB49 MB
Age rating4+17+
DeveloperMartin BogomolniAngela Ravel

In-app purchases

None

Spool Programmer

No in-app purchases

None

LentOut

No in-app purchases

Questions

Is Spool Programmer free?
Spool Programmer is free to download, with no in-app purchases.
Is LentOut free?
LentOut is free to download, with no in-app purchases.
Do Spool Programmer or LentOut have ads?
Neither Spool Programmer nor LentOut shows ads.
Which is updated more often, Spool Programmer or LentOut?
Spool Programmer ships an update every 5 days, and LentOut every 4 weeks. Most recently, Spool Programmer was updated on October 28, 2026 and LentOut on October 28, 2026.

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