# Monocle App vs Spool Master

The clearest difference is in-app purchases: Monocle App at none against Spool Master's 2. Monocle App also leads on ads (none vs shown) and iOS requirement (12.3 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Spool Master sells 2 in-app purchases, starting at $1.99 per month. Monocle App asks for nothing beyond the download.

## The numbers

| Metric | Monocle App | Spool Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/spool-master/id6757678949/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 4 days |
| Monetization | — | Free with in-app purchases |
| Size | 27 MB | 39 MB |
| Requires iOS | **12.3** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Monocle Security Limited](https://appshunter.io/developer/1831103095) | [Sebastien Girod](https://appshunter.io/developer/1472154080) |

## What reviewers say

### Monocle App

[App page](https://appshunter.io/ios/app/monocle-app/id6751052101)

**Features:** Vision Pro support

**In-app purchases:** none


### Spool Master

[App page](https://appshunter.io/ios/app/spool-master/id6757678949)

Manage your 3D printing filament stock with NFC tag reading/writing, inventory tracking, and smart shopping lists. Optimize expenses and reduce waste for hobbyists and professionals.

**Highlights:** NFC reading and writing for spool tags, Complete inventory management, Detailed statistics and value tracking, Automatic low stock alerts, Smart shopping list generation, Print settings configuration, Multi-device synchronization

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spool Master Monthly | $1.99 | per month |
| Spool Master Yearly | $9.99 | per year |


## Frequently asked questions

### Is Monocle App free?

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

### Is Spool Master free?

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

### Do Monocle App or Spool Master have ads?

Spool Master shows ads; Monocle App does not.

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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.*