# Geodetic Compass vs SanCAST

The clearest difference is iOS requirement: Geodetic Compass at 15.0 against SanCAST's 18.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Geodetic Compass ships an update fortnightly, SanCAST monthly. The most recent releases landed on November 7, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Geodetic Compass | SanCAST |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free | — |
| Size | 28 MB | 4 MB |
| Requires iOS | **15.0** | 18.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fontech](https://appshunter.io/developer/878525010) | [SANLIEN TECHNOLOGY CORP.](https://appshunter.io/developer/614142496) |

## What reviewers say

### Geodetic Compass

[App page](https://appshunter.io/ios/app/geodetic-compass/id1510306428)

This utility app quickly shares your real-time location via SMS or other apps. It includes a coordinate conversion tool and a built-in phone book for emergency services in Taiwan. Designed for ease of use, it helps you stay connected and informed.

**Highlights:** Real-time location sharing, Share location via SMS/other apps, Coordinate conversion tool, Taiwan emergency services phone book, SOS message integration

**Features:** Vision Pro support

**In-app purchases:** none


### SanCAST

[App page](https://appshunter.io/ios/app/sancast/id6739331332)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Geodetic Compass free?

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

### Is SanCAST free?

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

### Do Geodetic Compass or SanCAST have ads?

Neither Geodetic Compass nor SanCAST shows ads.

### Which is updated more often, Geodetic Compass or SanCAST?

Geodetic Compass ships an update fortnightly, and SanCAST monthly. Most recently, Geodetic Compass was updated on November 7, 2026 and SanCAST on September 28, 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.*