# SiFly eFoils vs Levski Fen

The clearest difference is update cadence: Levski Fen at every 3 days against SiFly eFoils's every 2 months. SiFly eFoils's advantage is iOS requirement (12.0 vs 15.1). 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.

SiFly eFoils ships an update every 2 months, Levski Fen every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SiFly eFoils | Levski Fen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sifly-efoils/id1600862695/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 72 MB | 186 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SiFly LTD ODD](https://appshunter.io/developer/1600862697) | [Denis Dimitrov](https://appshunter.io/developer/6772700771) |

## What reviewers say

### SiFly eFoils

[App page](https://appshunter.io/ios/app/sifly-efoils/id1600862695)

Enhance your electric hydrofoil experience with smart features. Connect, track your rides with GPS, customize performance, and access guides for assembly and maintenance. Elevate every session on the water.

**Highlights:** Board and battery activation, GPS session tracking with replays, Performance customization, Assembly and maintenance guides, Real-time insights

**Features:** macOS Compatibility

**In-app purchases:** none


### Levski Fen

[App page](https://appshunter.io/ios/app/levski-fen/id6772700769)

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

**In-app purchases:** none


## Frequently asked questions

### Is SiFly eFoils free?

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

### Is Levski Fen free?

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

### Do SiFly eFoils or Levski Fen have ads?

Neither SiFly eFoils nor Levski Fen shows ads.

### Which is updated more often, SiFly eFoils or Levski Fen?

SiFly eFoils ships an update every 2 months, and Levski Fen every 3 days. Most recently, SiFly eFoils was updated on November 3, 2026 and Levski Fen 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.*