# EFOY vs US ESTA Visa

The clearest difference is ads: EFOY at none against US ESTA Visa's shown. US ESTA Visa's advantage is update cadence (every 6 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

EFOY ships an update every 2 months, US ESTA Visa every 6 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | EFOY | US ESTA Visa |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 45 MB | 115 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SFC Energy AG](https://appshunter.io/developer/414633053) | [Document Advisor LLC](https://appshunter.io/developer/1028127205) |

## What reviewers say

### EFOY

[App page](https://appshunter.io/ios/app/efoy/id414633050)

Manage your EFOY fuel cell remotely via your smartphone or tablet. Find nearby retailers, access service, and stay updated on news. Monitor fuel cell, cartridge, and battery data on a single screen.

**Highlights:** Remote fuel cell control, Fuel cartridge retailer locator, Service department contact, News and updates, Fuel cell data monitoring, Battery status display

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

**In-app purchases:** none


### US ESTA Visa

[App page](https://appshunter.io/ios/app/us-esta-visa/id6801306632)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EFOY free?

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

### Is US ESTA Visa free?

US ESTA Visa is free to download, with no in-app purchases.

### Do EFOY or US ESTA Visa have ads?

US ESTA Visa shows ads; EFOY does not.

### Which is updated more often, EFOY or US ESTA Visa?

EFOY ships an update every 2 months, and US ESTA Visa every 6 days. Most recently, EFOY was updated on November 1, 2026 and US ESTA Visa 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.*