# Heft vs Ruler

The clearest difference is in-app purchases: Ruler at none against Heft's 1. Ruler also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Heft sells 1 in-app purchase, starting at $9.99 per year. Ruler asks for nothing beyond the download.

## The numbers

| Metric | Heft | Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 28 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tchelow](https://appshunter.io/developer/564628624) | [Al-rahaal Explorer For General Trading, Training And Development Company](https://appshunter.io/developer/1015710320) |

## What reviewers say

### Heft

[App page](https://appshunter.io/ios/app/heft-estimate-weight-ai/id6759206874)

Instantly estimate the weight of any object using your iPhone camera. Get reliable weight estimates with a clear confidence range, no physical scale needed. Ideal for shipping, travel, or everyday curiosity.

**Highlights:** AI weight estimation from photos, Confidence range for reliability, Measurement history, Support for multiple units (kg, lbs, oz, g), LiDAR-enhanced accuracy on Pro devices, Optional subscription for advanced features

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Heft+ | $9.99 | per year |


### Ruler

[App page](https://appshunter.io/ios/app/ruler/id6789526671)

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

**In-app purchases:** none


## Frequently asked questions

### Is Heft free?

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

### Is Ruler free?

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

### Do Heft or Ruler have ads?

Neither Heft nor Ruler shows ads.

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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.*