# MTL SURF vs apnia

The clearest difference is update cadence: apnia at every 4 days against MTL SURF's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

MTL SURF ships an update every 2 months, apnia every 4 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MTL SURF | apnia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/mtl-surf/id1121864375/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 94 MB | 88 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Kayak Sans Frontieres](https://appshunter.io/developer/1805677059) | [Dashbd](https://appshunter.io/developer/1677639468) |

## What reviewers say

### MTL SURF

[App page](https://appshunter.io/ios/app/mtl-surf/id1121864375)

Get real-time river conditions for surfing, including water temperature, level, and flow. Make informed decisions about when and how to surf, and track historical data with charts.

**Highlights:** Live river metrics (temperature, level, debit), Wave quality prediction, Wetsuit recommendation, Historical data charts, Session planning tool

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

**In-app purchases:** none


### apnia

[App page](https://appshunter.io/ios/app/apnia/id6779599095)

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

**In-app purchases:** none


## Frequently asked questions

### Is MTL SURF free?

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

### Is apnia free?

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

### Do MTL SURF or apnia have ads?

Neither MTL SURF nor apnia shows ads.

### Which is updated more often, MTL SURF or apnia?

MTL SURF ships an update every 2 months, and apnia every 4 days. Most recently, MTL SURF was updated on November 2, 2026 and apnia on October 31, 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.*