# Builder's Formulator vs Inventory Easy

The clearest difference is review sentiment: Inventory Easy at 50% against Builder's Formulator's 0%. Inventory Easy also leads on rating (4.7 vs 2.0) and update cadence (fortnightly vs every 2 months). Builder's Formulator's advantage is monetization model (free vs free with in-app purchases). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Builder's Formulator sells 1 one-off in-app purchase and Inventory Easy sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Inventory Easy holds the better App Store score, 4.7 against 2.0. That said, the two scores are not equally well evidenced: Inventory Easy has 82 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Builder's Formulator's written reviews are positive against 50% of Inventory Easy's.

Builder's Formulator ships an update every 2 months, Inventory Easy fortnightly. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Builder's Formulator | Inventory Easy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (3 ratings)](https://appshunter.io/ios/app/builders-formulator/id306247596/reviews) | **[4.7 (82 ratings)](https://appshunter.io/ios/app/inventory-easy-stock-tracker/id1614817060/reviews)** |
| Number of ratings | 3 | **82** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 48 MB | 60 MB |
| Requires iOS | 26.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [B TO J PTY LTD](https://appshunter.io/developer/569308231) |

## What reviewers say

### Builder's Formulator

[App page](https://appshunter.io/ios/app/builders-formulator/id306247596)

This comprehensive tool provides over 2,600 formulas, code charts, and technical drawings for construction professionals. It covers calculations for structural engineering, electrical, plumbing, HVAC, and financial aspects of building projects. Includes unit conversions and ADA accessibility references.

**Highlights:** Over 2,600 formulas, Plumbing code charts, Technical drawings, ADA accessibility references, Unit conversions, Save and revisit calculations, Mark favorites

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

**In-app purchases (1)**

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


### Inventory Easy

[App page](https://appshunter.io/ios/app/inventory-easy-stock-tracker/id1614817060)

Organize your stock with a powerful barcode and QR code scanner. Track items, view pricing, and manage inventory across devices. Ideal for businesses and personal use, it offers customizable fields and low stock alerts.

**Highlights:** Barcode and QR code scanning, Cloud sync across devices, Customizable fields, Low stock alerts, Team access and real-time updates, Visual inventory browsing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $7.99 | per month |
| 1 Year Subscription | $59.99 | per year |


## Frequently asked questions

### Is Builder's Formulator free?

Builder's Formulator is free to download, with in-app purchases available.

### Is Inventory Easy free?

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

### Which has better reviews, Builder's Formulator or Inventory Easy?

Inventory Easy is rated higher. Builder's Formulator averages 2.0 out of 5 from 3 ratings, while Inventory Easy averages 4.7 from 82 ratings.

### Do Builder's Formulator or Inventory Easy have ads?

Neither Builder's Formulator nor Inventory Easy shows ads.

### Which is updated more often, Builder's Formulator or Inventory Easy?

Builder's Formulator ships an update every 2 months, and Inventory Easy fortnightly. Most recently, Builder's Formulator was updated on October 27, 2026 and Inventory Easy on October 30, 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.*