# Spoolstock vs OBJ Viewer

The clearest difference is in-app purchases: OBJ Viewer at none against Spoolstock's 2. Spoolstock's advantage is iOS requirement (15.0.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Spoolstock sells 2 in-app purchases, starting at $1.99 per month. OBJ Viewer asks for nothing beyond the download.

Spoolstock ships an update weekly, OBJ Viewer every 6 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Spoolstock | OBJ Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (119 ratings)](https://appshunter.io/ios/app/spoolstock-3d-printing-hub/id6480470069/reviews)** | — |
| Number of ratings | **119** | — |
| Positive reviews | 47.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Freemium | — |
| Size | 90 MB | 1 MB |
| Requires iOS | **15.0.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Pixel Bus, LLC](https://appshunter.io/developer/1473462961) | [Shota Sukhiashvili](https://appshunter.io/developer/1843072730) |

## What reviewers say

### Spoolstock

[App page](https://appshunter.io/ios/app/spoolstock-3d-printing-hub/id6480470069)

Manage your 3D printing materials and projects with this app. Track filament inventory, monitor print progress, and gain insights into your usage. Syncs across devices and offers smart tracking for remaining filament.

**Highlights:** Filament inventory management, QR/barcode scanning, Intelligent filament tracking, Multi-material print tracking, Depletion notifications, Usage statistics, Multi-device cloud syncing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Maker Monthly | $1.99 | per month |
| Maker Yearly | $19.99 | per year |

**What reviewers like**

- 👍 Great for filament inventory
- 👍 Tracks filament usage
- 👍 Helps manage large spool collections
- 👍 Time-saver for organization
- 👍 Useful for accounting/cost tracking

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 Login issues/data loss
- 🐛 NFC scanning not working
- 🐛 Barcode/QR code scanning issues
- 🐛 Filament database lacking entries

**Reported bugs**

- Most filaments missing in database
- NFC does not work
- Log in and data GONE after update
- Password reset does nothing
- CSV export doesn't work

**Requested features**

- Link app to slicer for project import
- One-time payment option instead of subscription
- Show total print time for a project
- Allow offline use
- Document filament drying


### OBJ Viewer

[App page](https://appshunter.io/ios/app/obj-viewer-view-3d-models/id6803442606)

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

**In-app purchases:** none


## Frequently asked questions

### Is Spoolstock free?

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

### Is OBJ Viewer free?

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

### Do Spoolstock or OBJ Viewer have ads?

Neither Spoolstock nor OBJ Viewer shows ads.

### Which is updated more often, Spoolstock or OBJ Viewer?

Spoolstock ships an update weekly, and OBJ Viewer every 6 days. Most recently, Spoolstock was updated on October 26, 2026 and OBJ Viewer on October 25, 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.*