# Volume in Pipe vs CSV Analyzer

The clearest difference is in-app purchases: Volume in Pipe at none against CSV Analyzer's 4. CSV Analyzer's advantage is update cadence (every 3 days vs every 26 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. CSV Analyzer sells 4 in-app purchases, starting at $4.99 per month. Volume in Pipe asks for nothing beyond the download.

Volume in Pipe ships an update every 26 months, CSV Analyzer every 3 days. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Volume in Pipe | CSV Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/volume-in-pipe/id1582068096/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 11 MB | 2 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kelly Gayneaux](https://appshunter.io/developer/1082576429) | [Katsiaryna Haba](https://appshunter.io/developer/1820506440) |

## What reviewers say

### Volume in Pipe

[App page](https://appshunter.io/ios/app/volume-in-pipe/id1582068096)

Quickly estimate the gas volume within pipes, launchers, or vessels. Input operating conditions and pipe size for an approximate volume calculation. This tool is designed for rapid field estimates.

**Highlights:** Estimate gas volume, Input operating conditions, Select pipe size, Quick field estimates, Supports iPhone

**Features:** macOS Compatibility

**In-app purchases:** none


### CSV Analyzer

[App page](https://appshunter.io/ios/app/csv-analyzer-offline-stats/id6753903956)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $4.99 | per month |
| Quarterly subscription | $12.99 | per 3 months |
| Yearly subscription | $39.99 | per year |
| One-Time Purchase | $49.99 | one-time |


## Frequently asked questions

### Is Volume in Pipe free?

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

### Is CSV Analyzer free?

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

### Do Volume in Pipe or CSV Analyzer have ads?

Neither Volume in Pipe nor CSV Analyzer shows ads.

### Which is updated more often, Volume in Pipe or CSV Analyzer?

Volume in Pipe ships an update every 26 months, and CSV Analyzer every 3 days. Most recently, Volume in Pipe was updated on September 10, 2026 and CSV Analyzer on September 17, 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.*