# Profit On Site vs Pipefitter Calculator (e4bc01)

The clearest difference is in-app purchases: Profit On Site at none against Pipefitter Calculator (e4bc01)'s 2. Profit On Site also leads on ads (none vs shown). Pipefitter Calculator (e4bc01)'s advantage is update cadence (every 4 weeks vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Pipefitter Calculator (e4bc01) sells 2 in-app purchases, starting at $4.99 per month. Profit On Site asks for nothing beyond the download.

Profit On Site ships an update every 3 months, Pipefitter Calculator (e4bc01) every 4 weeks. The most recent releases landed on October 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Profit On Site | Pipefitter Calculator (e4bc01) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Size | 40 MB | 50 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Piping Logistics](https://appshunter.io/developer/1677360438) | [Justin Walls](https://appshunter.io/developer/6782460947) |

## What reviewers say

### Profit On Site

[App page](https://appshunter.io/ios/app/profit-on-site/id6446322545)

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

**In-app purchases:** none


### Pipefitter Calculator (e4bc01)

[App page](https://appshunter.io/ios/app/pipefitter-calculator-e4bc01/id6782460945)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pipefitter Pro | $4.99 | per month |
| Remove Ads Forever | $9.99 | one-time |


## Frequently asked questions

### Is Profit On Site free?

Profit On Site is free to download, with no in-app purchases.

### Is Pipefitter Calculator (e4bc01) free?

Pipefitter Calculator (e4bc01) is free to download, with in-app purchases available.

### Do Profit On Site or Pipefitter Calculator (e4bc01) have ads?

Pipefitter Calculator (e4bc01) shows ads; Profit On Site does not.

### Which is updated more often, Profit On Site or Pipefitter Calculator (e4bc01)?

Profit On Site ships an update every 3 months, and Pipefitter Calculator (e4bc01) every 4 weeks. Most recently, Profit On Site was updated on October 1, 2026 and Pipefitter Calculator (e4bc01) on October 25, 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.*