# BlindTools vs Spool

The clearest difference is in-app purchases: BlindTools at none against Spool's 3. BlindTools also leads on update cadence (weekly vs every 2 weeks) and iOS requirement (15.0 vs 26.1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Spool sells 3 in-app purchases, starting at $4.99 per month. BlindTools asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for BlindTools against 5.0 for Spool. Both are backed by a comparable volume of ratings — 4 and 5 respectively.

BlindTools ships an update weekly, Spool every 2 weeks. The most recent releases landed on September 26, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | BlindTools | Spool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/blindtools/id6751693936/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/spool-filament-tracker/id6756892049/reviews) |
| Number of ratings | 4 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | **Free** | Freemium |
| Size | 16 MB | 77 MB |
| Requires iOS | **15.0** | 26.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 17+ | 4+ |
| Developer | [BlindTools LLC](https://appshunter.io/developer/1836320482) | [Lucas Melo](https://appshunter.io/developer/1863471937) |

## What reviewers say

### BlindTools

[App page](https://appshunter.io/ios/app/blindtools/id6751693936)

Streamline window treatment projects with precise measurements, detailed audit trails, and end-to-end job management. Document installations with photos and access project data offline, organizing everything room by room.

**Highlights:** Bluetooth laser measurement integration, Detailed audit trails and history logs, End-to-end job lifecycle management, Visual site documentation with photos, Offline access to project data, Room-by-room organization

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

**In-app purchases:** none


### Spool

[App page](https://appshunter.io/ios/app/spool-filament-tracker/id6756892049)

Manage your 3D printing filament inventory with detailed tracking of materials, costs, and stock levels. Log print details, monitor printer maintenance, and gain insights into your printing habits. Integrates with Bambu Lab printers for automatic data logging.

**Highlights:** Filament spool tracking, Cost and weight logging, Low-stock warnings, Print logging and analysis, Bambu Lab printer integration, Printer maintenance schedules, NFC/QR code spool tagging

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spool Pro Monthly | $4.99 | per month |
| Spool Pro Yearly | $49.99 | per year |
| +10 Spool Capacity | $0.99 | one-time |


## Frequently asked questions

### Is BlindTools free?

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

### Is Spool free?

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

### Which has better reviews, BlindTools or Spool?

BlindTools and Spool are both rated 5.0 out of 5 on the App Store, from 4 and 5 ratings respectively.

### Do BlindTools or Spool have ads?

Neither BlindTools nor Spool shows ads.

### Which is updated more often, BlindTools or Spool?

BlindTools ships an update weekly, and Spool every 2 weeks. Most recently, BlindTools was updated on September 26, 2026 and Spool on October 10, 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.*