# OpenSpool vs SpoolKeep

The clearest difference is in-app purchases: OpenSpool at none against SpoolKeep's 1. OpenSpool also leads on iOS requirement (15.1 vs 17). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | OpenSpool | SpoolKeep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/openspool/id6740551901/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | Free | — |
| Size | 12 MB | 3 MB |
| Requires iOS | **15.1** | 17 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Spencer Owen](https://appshunter.io/developer/1790569930) | [Claude-Alain Muller](https://appshunter.io/developer/1818892197) |

## What reviewers say

### OpenSpool

[App page](https://appshunter.io/ios/app/openspool/id6740551901)

This utility app functions as a universal RFID reader for 3D printers. It supports various RFID systems used for 3D printer filament, including OpenSpool, OpenTag, and Creality. More information on integration is available via a provided GitHub link.

**Highlights:** Universal RFID reader, Reads OpenSpool RFID systems, Reads OpenTag RFID systems, Reads Creality RFID systems, Supports other RFID systems, 3D printer filament tracking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is OpenSpool free?

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

### Is SpoolKeep free?

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

### Do OpenSpool or SpoolKeep have ads?

Neither OpenSpool nor SpoolKeep shows ads.

---

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