# Flat Pattern vs Dive Planner Calculator

The clearest difference is rating: Dive Planner Calculator at 3.3 against Flat Pattern's 1.0. Flat Pattern's advantage is update cadence (daily vs every 7 months) and price ($7.99 vs $8.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Flat Pattern costs $7.99 and Dive Planner Calculator $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Dive Planner Calculator holds the better App Store score, 3.3 against 1.0. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

Flat Pattern ships an update daily, Dive Planner Calculator every 7 months. The most recent releases landed on October 1, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | Flat Pattern | Dive Planner Calculator |
| --- | --- | --- |
| Price | **$7.99** | $8.99 |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/flat-pattern/id1490125173/reviews) | **[3.3 (3 ratings)](https://appshunter.io/ios/app/dive-planner-calculator/id6739454581/reviews)** |
| Number of ratings | 2 | **3** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 7 months |
| Monetization | Paid | Paid |
| Size | 64 MB | 10 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Imran Pinjara](https://appshunter.io/developer/1484488781) | [SAGA Virtual Tecnologia Ltda](https://appshunter.io/developer/1455930511) |

## What reviewers say

### Flat Pattern

[App page](https://appshunter.io/ios/app/flat-pattern/id1490125173)

This tool helps fabrication professionals create precise flat patterns for various shapes, minimizing fabrication time and increasing accuracy. It supports a wide range of complex geometries for industries like pressure vessels, piping, and heavy equipment.

**Highlights:** Fabrication layout for pipes and cones, Supports various pipe intersections, Calculates transitions between shapes, Generates patterns for pyramids and spheres, Includes dish end and screw flight layouts, Minimizes fabrication time and increases accuracy

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

**In-app purchases:** none


### Dive Planner Calculator

[App page](https://appshunter.io/ios/app/dive-planner-calculator/id6739454581)

This app simplifies recreational dive planning by calculating essential dive parameters for up to three consecutive dives. It provides automatic calculations for residual nitrogen, safe ascent times, and includes a visual dive graph for easy review. Designed for both new and experienced divers, it ensures adherence to safety standards for stress-free underwater exploration.

**Highlights:** Plan up to three consecutive dives, Automatic calculation of dive parameters, Surface interval tracking, Visual dive graph, Adherence to safety guidelines, On-the-go convenience

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

**In-app purchases:** none


## Frequently asked questions

### Is Flat Pattern free?

Flat Pattern costs $7.99, with no in-app purchases.

### Is Dive Planner Calculator free?

Dive Planner Calculator costs $8.99, with no in-app purchases.

### Which has better reviews, Flat Pattern or Dive Planner Calculator?

Dive Planner Calculator is rated higher. Flat Pattern averages 1.0 out of 5 from 2 ratings, while Dive Planner Calculator averages 3.3 from 3 ratings.

### Do Flat Pattern or Dive Planner Calculator have ads?

Neither Flat Pattern nor Dive Planner Calculator shows ads.

### Which is updated more often, Flat Pattern or Dive Planner Calculator?

Flat Pattern ships an update daily, and Dive Planner Calculator every 7 months. Most recently, Flat Pattern was updated on October 1, 2026 and Dive Planner Calculator on September 2, 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.*