# Code Snap vs FlowLine Isometric

The clearest difference is rating: Code Snap at 4.7 against FlowLine Isometric's 4.0. Code Snap also leads on ratings volume (231 vs 12) and iOS requirement (18.0 vs 26.0). FlowLine Isometric's advantage is in-app purchases (none vs 8). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Code Snap sells 8 in-app purchases, starting at $8.99 per year. FlowLine Isometric asks for nothing beyond the download.

Code Snap holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Code Snap has 231 ratings behind it against 12, so its average is the more settled of the two.

Code Snap ships an update every 2 months, FlowLine Isometric every 6 weeks. The most recent releases landed on November 1, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Code Snap | FlowLine Isometric |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (231 ratings)](https://appshunter.io/ios/app/code-snap-upc-and-ipc-pro/id704968016/reviews)** | [4.0 (12 ratings)](https://appshunter.io/ios/app/flowline-isometric/id6762237039/reviews) |
| Number of ratings | **231** | 12 |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Subscription | **Free** |
| Size | 77 MB | 23 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Magnitude LLC](https://appshunter.io/developer/703754875) | [Joshua Parkin](https://appshunter.io/developer/1495725832) |

## What reviewers say

### Code Snap

[App page](https://appshunter.io/ios/app/code-snap-upc-and-ipc-pro/id704968016)

Access essential plumbing code data and calculations on the go. This app provides quick access to UPC & IPC tables, water line sizing, and fitting take-offs, streamlining fieldwork for plumbing professionals.

**Highlights:** UPC & IPC code tables, Water line sizing calculator, DWV & H2O fitting take-offs, Interactive results, Color-coded data, Field-optimized interface, Share code and take-off values

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Main Line Sizing | $8.99 | per year |
| Main Line Sizing | $9.99 | per year |
| UPC / IPC Tables | $14.99 | per year |
| Fitting Take Offs | $14.99 | per year |
| UPC / IPC Tables | $19.99 | per year |
| Fitting Take Offs | $19.99 | per year |
| All Plumbing Tools | $29.99 | per year |
| All Plumbing Tools | $39.99 | per year |


### FlowLine Isometric

[App page](https://appshunter.io/ios/app/flowline-isometric/id6762237039)

A professional tool for creating isometric piping diagrams. It allows pipefitters, plumbers, engineers, and contractors to quickly sketch and document pipe runs with a snap grid for precise isometric projection.

**Highlights:** Isometric projection drawing, Snap grid for precise lines, Quick sketching and documentation, On-site or office use, Focus on layout

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

**In-app purchases:** none


## Frequently asked questions

### Is Code Snap free?

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

### Is FlowLine Isometric free?

FlowLine Isometric is free to download, with no in-app purchases.

### Which has better reviews, Code Snap or FlowLine Isometric?

Code Snap is rated higher. Code Snap averages 4.7 out of 5 from 231 ratings, while FlowLine Isometric averages 4.0 from 12 ratings.

### Do Code Snap or FlowLine Isometric have ads?

Neither Code Snap nor FlowLine Isometric shows ads.

### Which is updated more often, Code Snap or FlowLine Isometric?

Code Snap ships an update every 2 months, and FlowLine Isometric every 6 weeks. Most recently, Code Snap was updated on November 1, 2026 and FlowLine Isometric on November 9, 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.*