# Geometry Calculator++ vs FlagBuilder

The clearest difference is price: FlagBuilder at Free against Geometry Calculator++'s $2.99. FlagBuilder also leads on rating (4.6 vs 3.4). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

FlagBuilder is free to download; Geometry Calculator++ costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FlagBuilder holds the better App Store score, 4.6 against 3.4. Both are backed by a comparable volume of ratings — 5 and 9 respectively.

Geometry Calculator++ ships an update fortnightly, FlagBuilder every 10 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | Geometry Calculator++ | FlagBuilder |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [3.4 (5 ratings)](https://appshunter.io/ios/app/geometry-calculator-plus-plus/id1515851137/reviews) | **[4.6 (9 ratings)](https://appshunter.io/ios/app/flagbuilder-flag-puzzle/id6443924386/reviews)** |
| Number of ratings | 5 | **9** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 32 MB |
| Requires iOS | **15** | 15.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dogahe](https://appshunter.io/developer/468657946) | [Shape Labs AB](https://appshunter.io/developer/1535699607) |

## What reviewers say

### Geometry Calculator++

[App page](https://appshunter.io/ios/app/geometry-calculator-plus-plus/id1515851137)

This app helps you solve for the parameters of various geometric shapes and visually draws them. It supports multiple triangle types, squares, rectangles, circles, and regular polygons. Available for iPhone and iPad with a single purchase.

**Highlights:** Solves geometric parameters, Draws geometric shapes, Supports triangles, squares, rectangles, circles, and polygons, Universal app for iPhone and iPad, Single purchase

**Features:** Vision Pro support

**In-app purchases:** none


### FlagBuilder

[App page](https://appshunter.io/ios/app/flagbuilder-flag-puzzle/id6443924386)

Test your knowledge of world flags by recreating them layer by layer. Select continents to focus your challenges and learn about countries presented in a random order. Correctly assemble each flag to win.

**Highlights:** Select continents for custom games, Recreate flags layer by layer, Randomized country order, Lifeline system for incorrect guesses, Progress tracking through correct answers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Geometry Calculator++ free?

Geometry Calculator++ costs $2.99, with no in-app purchases.

### Is FlagBuilder free?

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

### Which has better reviews, Geometry Calculator++ or FlagBuilder?

FlagBuilder is rated higher. Geometry Calculator++ averages 3.4 out of 5 from 5 ratings, while FlagBuilder averages 4.6 from 9 ratings.

### Do Geometry Calculator++ or FlagBuilder have ads?

Neither Geometry Calculator++ nor FlagBuilder shows ads.

### Which is updated more often, Geometry Calculator++ or FlagBuilder?

Geometry Calculator++ ships an update fortnightly, and FlagBuilder every 10 days. Most recently, Geometry Calculator++ was updated on November 3, 2026 and FlagBuilder on November 3, 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.*