# AdvancedRoof vs Bend deduction and Flat length

The clearest difference is rating: AdvancedRoof at 3.7 against Bend deduction and Flat length's 1.0. AdvancedRoof also leads on update cadence (every 18 months vs every 46 months) and price ($1.99 vs $2.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

AdvancedRoof costs $1.99 and Bend deduction and Flat length $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AdvancedRoof holds the better App Store score, 3.7 against 1.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

AdvancedRoof ships an update every 18 months, Bend deduction and Flat length every 46 months. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | AdvancedRoof | Bend deduction and Flat length |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/advancedroof/id428275048/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/bend-deduction-and-flat-length/id1608300708/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 18 months** | Every 46 months |
| Monetization | Paid | Paid |
| Size | 4 MB | 2 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Robert Thompson](https://appshunter.io/developer/364220435) | [Bhavinkumar Satashiya](https://appshunter.io/developer/1361485921) |

## What reviewers say

### AdvancedRoof

[App page](https://appshunter.io/ios/app/advancedroof/id428275048)

Calculate all necessary roofing materials for various roof types including hip, gable, and lean-to. Supports multiple roof slopes and configurations for comprehensive material estimation.

**Highlights:** Roofing material calculation, Supports hip, gable, and lean-to roofs, Calculates for slate, tiles, felt, battens, and nails, Handles multiple roof slope combinations, Estimates materials for complex roof configurations

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

**In-app purchases:** none


### Bend deduction and Flat length

[App page](https://appshunter.io/ios/app/bend-deduction-and-flat-length/id1608300708)

This app calculates the bend deduction for sheet metal, determining the initial flat length needed for a finished part. It simplifies the process by eliminating trial and error for press brake operators, designers, and laser cutter operators, saving time and material.

**Highlights:** Calculate bend deduction, Determine flat length, Input interior angle, Input flange lengths, Input K factor, Input inside radius, Input material thickness

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

**In-app purchases:** none


## Frequently asked questions

### Is AdvancedRoof free?

AdvancedRoof costs $1.99, with no in-app purchases.

### Is Bend deduction and Flat length free?

Bend deduction and Flat length costs $2.99, with no in-app purchases.

### Which has better reviews, AdvancedRoof or Bend deduction and Flat length?

AdvancedRoof is rated higher. AdvancedRoof averages 3.7 out of 5 from 3 ratings, while Bend deduction and Flat length averages 1.0 from 2 ratings.

### Do AdvancedRoof or Bend deduction and Flat length have ads?

Neither AdvancedRoof nor Bend deduction and Flat length shows ads.

### Which is updated more often, AdvancedRoof or Bend deduction and Flat length?

AdvancedRoof ships an update every 18 months, and Bend deduction and Flat length every 46 months. Most recently, AdvancedRoof was updated on October 1, 2026 and Bend deduction and Flat length on October 2, 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.*