# Stringline vs Rafter & Framing Calc

The clearest difference is iOS requirement: Stringline at 15.1 against Rafter & Framing Calc's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Stringline sells 1 one-off in-app purchase and Rafter & Framing Calc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Stringline ships an update every 2 weeks, Rafter & Framing Calc fortnightly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Stringline | Rafter & Framing Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/rafter-and-framing-calc-buildx/id6767122401/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | — | Free |
| Size | 21 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hector Sahagun](https://appshunter.io/developer/578020588) | [Animesh Sharma](https://appshunter.io/developer/1886610117) |

## What reviewers say

### Stringline

[App page](https://appshunter.io/ios/app/stringline-construction-calc/id6760807845)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stringline Pro | $2.99 | one-time |


### Rafter & Framing Calc

[App page](https://appshunter.io/ios/app/rafter-and-framing-calc-buildx/id6767122401)

This app provides 15 specialized construction math tools for jobsite calculations, including framing, concrete, and material estimation. It features a native feet-inch-fraction keypad for direct input and allows project saving and PDF export.  It's designed for efficient and accurate trade calculations.

**Highlights:** 15 trade-specific construction tools, Native feet-inch-fraction keypad, Save and export projects to PDF, Offline functionality, Calculation history access, No subscription required

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BuildX Lifetime Unlock | $24.99 | one-time |


## Frequently asked questions

### Is Stringline free?

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

### Is Rafter & Framing Calc free?

Rafter & Framing Calc is free to download, with in-app purchases available.

### Do Stringline or Rafter & Framing Calc have ads?

Neither Stringline nor Rafter & Framing Calc shows ads.

### Which is updated more often, Stringline or Rafter & Framing Calc?

Stringline ships an update every 2 weeks, and Rafter & Framing Calc fortnightly. Most recently, Stringline was updated on October 25, 2026 and Rafter & Framing Calc on October 31, 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.*