# Only eSIM vs FlyData eSIM

The clearest difference is update cadence: Only eSIM at every 6 days against FlyData eSIM's fortnightly. FlyData eSIM's advantage is iOS requirement (15.1 vs 17.6). 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.

Only eSIM ships an update every 6 days, FlyData eSIM fortnightly. The most recent releases landed on October 1, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Only eSIM | FlyData eSIM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/only-esim/id6751620615/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Fortnightly |
| Monetization | Free | — |
| Size | 64 MB | 20 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [So Close LLC](https://appshunter.io/developer/1836086567) | [Parrot Phone Network](https://appshunter.io/developer/621494179) |

## What reviewers say

### Only eSIM

[App page](https://appshunter.io/ios/app/only-esim/id6751620615)

This app provides travelers with fast, simple mobile data plans for destinations worldwide. Browse, compare, and securely pay for eSIM plans, then install them directly on your device. Stay connected for maps, messaging, and apps without roaming charges.

**Highlights:** Browse global and regional eSIM plans, Compare data and validity options, Secure in-app payment, One-tap eSIM installation, Track data usage and orders, Access setup guides and support

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

**In-app purchases:** none


### FlyData eSIM

[App page](https://appshunter.io/ios/app/flydata-esim/id6765749725)

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

**In-app purchases:** none


## Frequently asked questions

### Is Only eSIM free?

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

### Is FlyData eSIM free?

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

### Do Only eSIM or FlyData eSIM have ads?

Neither Only eSIM nor FlyData eSIM shows ads.

### Which is updated more often, Only eSIM or FlyData eSIM?

Only eSIM ships an update every 6 days, and FlyData eSIM fortnightly. Most recently, Only eSIM was updated on October 1, 2026 and FlyData eSIM on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*