# ALF CURTIS CASTLE BUILDING CTR vs Builder Sourcing

The clearest difference is update cadence: Builder Sourcing at every 3 months against ALF CURTIS CASTLE BUILDING CTR's every 21 months. ALF CURTIS CASTLE BUILDING CTR's advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ALF CURTIS CASTLE BUILDING CTR ships an update every 21 months, Builder Sourcing every 3 months. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | ALF CURTIS CASTLE BUILDING CTR | Builder Sourcing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/builder-sourcing/id6741204484/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 41 MB | 446 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Alf Curtis Home Improvements](https://appshunter.io/developer/1680735345) | [Yi Zeng](https://appshunter.io/developer/1793554404) |

## What reviewers say

### ALF CURTIS CASTLE BUILDING CTR

[App page](https://appshunter.io/ios/app/alf-curtis-castle-building-ctr/id6447256794)

**Features:** macOS Compatibility

**In-app purchases:** none


### Builder Sourcing

[App page](https://appshunter.io/ios/app/builder-sourcing/id6741204484)

This platform connects builders and contractors with high-quality products at competitive prices through a membership system. It offers a wide selection of premium goods for various project needs, aiming to be a trusted partner for procurement.

**Highlights:** Membership system, High-quality products, Unbeatable prices, Global customer service, Vast selection of goods, Seamless procurement experience

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is ALF CURTIS CASTLE BUILDING CTR free?

ALF CURTIS CASTLE BUILDING CTR is free to download, with no in-app purchases.

### Is Builder Sourcing free?

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

### Do ALF CURTIS CASTLE BUILDING CTR or Builder Sourcing have ads?

Neither ALF CURTIS CASTLE BUILDING CTR nor Builder Sourcing shows ads.

### Which is updated more often, ALF CURTIS CASTLE BUILDING CTR or Builder Sourcing?

ALF CURTIS CASTLE BUILDING CTR ships an update every 21 months, and Builder Sourcing every 3 months. Most recently, ALF CURTIS CASTLE BUILDING CTR was updated on October 25, 2026 and Builder Sourcing on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*