# Field Triangulate vs RF calculator & Smith Chart

The clearest difference is price: RF calculator & Smith Chart at Free against Field Triangulate's $7.99. Field Triangulate's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 4 months). On ads and device support there is nothing between them.

RF calculator & Smith Chart is free to download; Field Triangulate costs $7.99 up front. RF calculator & Smith Chart sells 1 one-off in-app purchase. Field Triangulate asks for nothing beyond the download.

Field Triangulate ships an update every 2 months, RF calculator & Smith Chart every 4 months. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Field Triangulate | RF calculator & Smith Chart |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[3.7 (21 ratings)](https://appshunter.io/ios/app/field-triangulate/id548943416/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Paid | — |
| Size | 37 MB | 31 MB |
| Requires iOS | **11.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Neukadye](https://appshunter.io/developer/309451806) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### Field Triangulate

[App page](https://appshunter.io/ios/app/field-triangulate/id548943416)

Determine a remote GPS location using compass bearings from multiple points. Supports automated device location and manual entry of readings. Displays results on a map in various modes and offers multiple latitude/longitude formats.

**Highlights:** Calculate remote GPS locations, Use compass bearings, Automated iOS device location, Manual reading entry, On-map display, Multiple latitude/longitude formats, Share triangulation results

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

**In-app purchases:** none


### RF calculator & Smith Chart

[App page](https://appshunter.io/ios/app/rf-calculator-and-smith-chart/id6757265018)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| upgrade to pro | $3.99 | one-time |


## Frequently asked questions

### Is Field Triangulate free?

Field Triangulate costs $7.99, with no in-app purchases.

### Is RF calculator & Smith Chart free?

RF calculator & Smith Chart is free to download, with in-app purchases available.

### Do Field Triangulate or RF calculator & Smith Chart have ads?

Neither Field Triangulate nor RF calculator & Smith Chart shows ads.

### Which is updated more often, Field Triangulate or RF calculator & Smith Chart?

Field Triangulate ships an update every 2 months, and RF calculator & Smith Chart every 4 months. Most recently, Field Triangulate was updated on October 23, 2026 and RF calculator & Smith Chart on October 22, 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.*