# VFLEX App vs KerfSmart Carpentry Calculator

The clearest difference is in-app purchases: VFLEX App at none against KerfSmart Carpentry Calculator's 1. VFLEX App also leads on iOS requirement (15.1 vs 17.0). KerfSmart Carpentry Calculator's advantage is update cadence (every 2 days vs every 3 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. KerfSmart Carpentry Calculator sells 1 one-off in-app purchase. VFLEX App asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for VFLEX App against 5.0 for KerfSmart Carpentry Calculator. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

VFLEX App ships an update every 3 months, KerfSmart Carpentry Calculator every 2 days. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | VFLEX App | KerfSmart Carpentry Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/vflex-app/id6753985671/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/kerfsmart-carpentry-calculator/id6817965236/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 47 MB | 2 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tundra Labs](https://appshunter.io/developer/1846127411) | [Dylan McCaffrey](https://appshunter.io/developer/6817965238) |

## What reviewers say

### VFLEX App

[App page](https://appshunter.io/ios/app/vflex-app/id6753985671)

This application connects to a specific hardware product to allow users to configure various settings. It serves as a digital interface for a patented power supply system.

**Highlights:** Connect to VFLEX hardware, Configure power supply parameters, Patent-pending hardware integration, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


### KerfSmart Carpentry Calculator

[App page](https://appshunter.io/ios/app/kerfsmart-carpentry-calculator/id6817965236)

This app simplifies carpentry calculations by working directly with feet, inches, and fractions, eliminating decimal conversions. It offers tools for cut list optimization, lumber and plywood layout, and precise circular saw guides. Features include metric mode, a 50-entry history, and project syncing via iCloud.

**Highlights:** Fractional measurement calculations, Cut list optimization with kerf subtraction, Plywood and lumber layout, Circular saw guide for precise cuts, Metric and imperial modes, 50-entry calculation history, Offline functionality

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KerfSmart Pro | $9.99 | one-time |


## Frequently asked questions

### Is VFLEX App free?

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

### Is KerfSmart Carpentry Calculator free?

KerfSmart Carpentry Calculator is free to download, with in-app purchases available.

### Which has better reviews, VFLEX App or KerfSmart Carpentry Calculator?

VFLEX App and KerfSmart Carpentry Calculator are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do VFLEX App or KerfSmart Carpentry Calculator have ads?

Neither VFLEX App nor KerfSmart Carpentry Calculator shows ads.

### Which is updated more often, VFLEX App or KerfSmart Carpentry Calculator?

VFLEX App ships an update every 3 months, and KerfSmart Carpentry Calculator every 2 days. Most recently, VFLEX App was updated on October 25, 2026 and KerfSmart Carpentry Calculator on October 26, 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.*