# Calipers Tape Measure vs Spool Tracker

The clearest difference is price: Spool Tracker at Free against Calipers Tape Measure's $1.99. Spool Tracker also leads on update cadence (fortnightly vs every 3 months). Calipers Tape Measure's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

Spool Tracker is free to download; Calipers Tape Measure costs $1.99 up front. Spool Tracker sells 2 in-app purchases, starting at $4.99 per month. Calipers Tape Measure asks for nothing beyond the download.

Calipers Tape Measure ships an update every 3 months, Spool Tracker fortnightly. The most recent releases landed on September 29, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Calipers Tape Measure | Spool Tracker |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.3 (26 ratings)](https://appshunter.io/ios/app/calipers-tape-measure/id6445826923/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 6 MB | 23 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jacob Parker](https://appshunter.io/developer/1153284524) | [Three19 Pty Ltd](https://appshunter.io/developer/1873148699) |

## What reviewers say

### Calipers Tape Measure

[App page](https://appshunter.io/ios/app/calipers-tape-measure/id6445826923)

Measure objects of any size with your phone. Features a 5-meter tape measure for larger items and a precision caliper mode for measuring small objects down to a tenth of a millimeter. Offers highly accurate readings tested across various devices and settings.

**Highlights:** 5-meter tape measure, Precision caliper mode, Measure to 0.1mm accuracy, Spirit level functionality, Accurate measurement testing

**In-app purchases:** none


### Spool Tracker

[App page](https://appshunter.io/ios/app/spool-tracker-spoolvault/id6758485486)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpoolVault Premium | $4.99 | per month |
| SpoolVault Premium | $49.99 | per year |


## Frequently asked questions

### Is Calipers Tape Measure free?

Calipers Tape Measure costs $1.99, with no in-app purchases.

### Is Spool Tracker free?

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

### Do Calipers Tape Measure or Spool Tracker have ads?

Neither Calipers Tape Measure nor Spool Tracker shows ads.

### Which is updated more often, Calipers Tape Measure or Spool Tracker?

Calipers Tape Measure ships an update every 3 months, and Spool Tracker fortnightly. Most recently, Calipers Tape Measure was updated on September 29, 2026 and Spool Tracker on September 13, 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.*