# Emlid Flow vs GCM Survey

The clearest difference is in-app purchases: GCM Survey at none against Emlid Flow's 1. GCM Survey also leads on update cadence (every 4 days vs every 10 days). Emlid Flow's advantage is iOS requirement (16.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Emlid Flow sells 1 in-app purchase, starting at $24.99 per month. GCM Survey asks for nothing beyond the download.

Emlid Flow ships an update every 10 days, GCM Survey every 4 days. The most recent releases landed on November 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Emlid Flow | GCM Survey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (37 ratings)](https://appshunter.io/ios/app/emlid-flow/id1463967138/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 55.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 204 MB | 8 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Emlid Tech Kft.](https://appshunter.io/developer/1619099925) | [Geosensors](https://appshunter.io/developer/1162783005) |

## What reviewers say

### Emlid Flow

[App page](https://appshunter.io/ios/app/emlid-flow/id1463967138)

Manage Emlid Reach receivers and perform positioning tasks like point collection, topographic mapping, and earthworks. Offers free and pro plans with features for basic to advanced surveying workflows, including team collaboration and cloud sync.

**Highlights:** Receiver management (base/rover setup, RTK/PPK configuration), Point collection and stakeout, Import/export various file formats (CSV, DXF, KML, Shapefile), Extensive coordinate system library, Cloud sync with Emlid Flow 360, Team collaboration features, Advanced surveying tools (lines, polygons, DTM support)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan Individual Monthly | $24.99 | per month |


### GCM Survey

[App page](https://appshunter.io/ios/app/gcm-survey/id6789722644)

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

**In-app purchases:** none


## Frequently asked questions

### Is Emlid Flow free?

Emlid Flow is free to download, with in-app purchases available.

### Is GCM Survey free?

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

### Do Emlid Flow or GCM Survey have ads?

Neither Emlid Flow nor GCM Survey shows ads.

### Which is updated more often, Emlid Flow or GCM Survey?

Emlid Flow ships an update every 10 days, and GCM Survey every 4 days. Most recently, Emlid Flow was updated on November 7, 2026 and GCM Survey on October 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.*