# Simday vs FlyData eSIM

Simday and FlyData eSIM are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly fortnightly. Both last shipped on October 28, 2026.

## The numbers

| Metric | Simday | FlyData eSIM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flydata-esim/id6765749725/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | — | Free |
| Size | 46 MB | 18 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vast Travel](https://appshunter.io/developer/1874806008) | [Parrot Phone Network](https://appshunter.io/developer/621494179) |

## What reviewers say

### Simday

[App page](https://appshunter.io/ios/app/simday-travel-esim-and-data/id6758752697)

**In-app purchases:** none


### FlyData eSIM

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

Access mobile data in over 200 countries without a physical SIM card. Purchase digital plans instantly via email and connect immediately upon installation. Enjoy prepaid, contract-free service with no roaming fees.

**Highlights:** Instant digital SIM delivery, Coverage in 200+ countries, No contracts or roaming fees, Prepaid plans, App-based plan management, Compatible with unlocked devices

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

**In-app purchases:** none


## Frequently asked questions

### Is Simday free?

Simday 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 Simday or FlyData eSIM have ads?

Neither Simday nor FlyData eSIM shows ads.

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

Simday ships an update fortnightly, and FlyData eSIM fortnightly. Most recently, Simday was updated on October 28, 2026 and FlyData eSIM 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.*