# SpoolKeep vs Spool Programmer

The clearest difference is in-app purchases: Spool Programmer at none against SpoolKeep's 1. Spool Programmer also leads on update cadence (every 5 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SpoolKeep sells 1 one-off in-app purchase. Spool Programmer asks for nothing beyond the download.

SpoolKeep ships an update every 2 months, Spool Programmer every 5 days. The most recent releases landed on September 19, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | SpoolKeep | Spool Programmer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/spool-programmer/id6753324939/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | — | Free |
| Size | 3 MB | 3 MB |
| Requires iOS | 17 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Claude-Alain Muller](https://appshunter.io/developer/1818892197) | [Martin Bogomolni](https://appshunter.io/developer/1843504794) |

## What reviewers say

### SpoolKeep

[App page](https://appshunter.io/ios/app/spoolkeep/id6746877203)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpoolKeep Premium | $1.99 | one-time |


### Spool Programmer

[App page](https://appshunter.io/ios/app/spool-programmer/id6753324939)

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:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SpoolKeep free?

SpoolKeep is free to download, with in-app purchases available.

### Is Spool Programmer free?

Spool Programmer is free to download, with no in-app purchases.

### Do SpoolKeep or Spool Programmer have ads?

Neither SpoolKeep nor Spool Programmer shows ads.

### Which is updated more often, SpoolKeep or Spool Programmer?

SpoolKeep ships an update every 2 months, and Spool Programmer every 5 days. Most recently, SpoolKeep was updated on September 19, 2026 and Spool Programmer on September 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*