# Pipe Guide Calculator vs FlashDrop

The clearest difference is in-app purchases: Pipe Guide Calculator at none against FlashDrop's 1. Pipe Guide Calculator also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.5). FlashDrop's advantage is update cadence (every 3 weeks vs every 12 months). On price and ads there is nothing between them.

Both are free to download. FlashDrop sells 1 one-off in-app purchase. Pipe Guide Calculator asks for nothing beyond the download.

Pipe Guide Calculator ships an update every 12 months, FlashDrop every 3 weeks. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Pipe Guide Calculator | FlashDrop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/pipe-guide-calculator/id1076615988/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 19 MB | 8 MB |
| Requires iOS | **15.6** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [IT Welding Sweden AB](https://appshunter.io/developer/1076615987) | [Maker Gully LLC](https://appshunter.io/developer/1826926695) |

## What reviewers say

### Pipe Guide Calculator

[App page](https://appshunter.io/ios/app/pipe-guide-calculator/id1076615988)

This utility app provides essential calculations for pipe fitting, eliminating the need for reference tables. Designed by a welder for welders, it aims to save time and streamline work processes.

**Highlights:** All necessary computations in one place, Useful calculations for pipe fitting, Eliminates the need for tables, Saves time on the job, Designed for welders

**Features:** macOS Compatibility

**In-app purchases:** none


### FlashDrop

[App page](https://appshunter.io/ios/app/flashdrop/id6754209173)

**In-app purchases (1)**

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


## Frequently asked questions

### Is Pipe Guide Calculator free?

Pipe Guide Calculator is free to download, with no in-app purchases.

### Is FlashDrop free?

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

### Do Pipe Guide Calculator or FlashDrop have ads?

Neither Pipe Guide Calculator nor FlashDrop shows ads.

### Which is updated more often, Pipe Guide Calculator or FlashDrop?

Pipe Guide Calculator ships an update every 12 months, and FlashDrop every 3 weeks. Most recently, Pipe Guide Calculator was updated on October 4, 2026 and FlashDrop on October 15, 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.*