# HB vs Benchmark Slope

The clearest difference is in-app purchases: HB at none against Benchmark Slope's 3. HB also leads on iOS requirement (12.0 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Benchmark Slope sells 3 in-app purchases, starting at $9.99 per month. HB asks for nothing beyond the download.

HB ships an update every 4 days, Benchmark Slope weekly. Both last shipped on November 8, 2026.

## The numbers

| Metric | HB | Benchmark Slope |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/benchmark-slope/id6751212219/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | — | Freemium |
| Size | 30 MB | 83 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [海洋 刘](https://appshunter.io/developer/1736870190) | [Benchmark Slope](https://appshunter.io/developer/1834014574) |

## What reviewers say

### HB

[App page](https://appshunter.io/ios/app/hb-a03/id6751175506)

**Features:** macOS Compatibility

**In-app purchases:** none


### Benchmark Slope

[App page](https://appshunter.io/ios/app/benchmark-slope/id6751212219)

This app simplifies jobsite elevation, slope, and pitch calculations for construction crews. It offers instant target rod readings, slope analysis with ADA guidance, and multi-unit support. Hands-free voice input and a guided tutorial enhance usability for quick and accurate site measurements.

**Highlights:** Set Height of Instrument, Target rod readings instantly, Calculate slope and pitch, ADA Slope Guidance, Multi-unit support (feet, inches, meters), Hands-free voice input, Guided tutorial and help

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $9.99 | per month |
| Premium Yearly | $99.99 | per year |
| Lifetime Unlock | $59.99 | one-time |


## Frequently asked questions

### Is HB free?

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

### Is Benchmark Slope free?

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

### Do HB or Benchmark Slope have ads?

Neither HB nor Benchmark Slope shows ads.

### Which is updated more often, HB or Benchmark Slope?

HB ships an update every 4 days, and Benchmark Slope weekly. Most recently, HB was updated on November 8, 2026 and Benchmark Slope on November 8, 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.*