# GREF User vs Holafly eSIM

The clearest difference is rating: Holafly eSIM at 4.8 against GREF User's 1.0. Holafly eSIM also leads on update cadence (every 2 weeks vs every 3 months) and ratings volume (42K vs 2). GREF User's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (10.0 vs 15.6). 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.

Holafly eSIM holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Holafly eSIM has 42K ratings behind it against 2, so its average is the more settled of the two.

GREF User ships an update every 3 months, Holafly eSIM every 2 weeks. The most recent releases landed on October 24, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | GREF User | Holafly eSIM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/gref-user/id1600494846/reviews) | **[4.8 (42K ratings)](https://appshunter.io/ios/app/holafly-esim-unlimited-data/id1629600786/reviews)** |
| Number of ratings | 2 | **42K** |
| Positive reviews | — | 46.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#91** |
| Size | 31 MB | 80 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Fabricio Martinez Peralta](https://appshunter.io/developer/1600494848) | [HOLAFLY LIMITED](https://appshunter.io/developer/1801157995) |

## What reviewers say

### GREF User

[App page](https://appshunter.io/ios/app/gref-user/id1600494846)

Manage your transportation reservations with this official app. Receive reminders for upcoming bookings and easily connect with the support team for assistance.

**Highlights:** Make transportation reservations, Manage existing bookings, Receive booking reminders, Interact with support team

**Features:** macOS Compatibility

**In-app purchases:** none


### Holafly eSIM

[App page](https://appshunter.io/ios/app/holafly-esim-unlimited-data/id1629600786)

**Currently charting:** #91 Top Free · Travel (US App Store)

Stay connected globally with digital SIM cards offering unlimited data for travel. Avoid expensive roaming fees and enjoy easy installation and activation for seamless internet access in over 200 destinations.

**Highlights:** Unlimited data plans worldwide, eSIM for international travel, Avoid roaming fees, Easy installation and activation, Track data usage, Compatible with eSIM-enabled iPhones

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 🚀 Reliable service
- 🚀 Excellent customer service
- 🚀 Unlimited data
- 🚀 Seamless installation

**What reviewers complain about**

- 🐛 Unreliable connectivity
- 🐛 Slow speeds
- 🐛 Lack of transparency on fair use policies
- 🐛 Difficult to get refunds
- 🐛 Buggy app experience

**Reported bugs**

- eSIM activation issues
- Inconsistent expiration dates
- Inability to top up plans within the app

**Requested features**

- Ability to tether devices
- Provide local phone numbers
- Clearer information on supported networks and speeds
- Improve app functionality and user experience


## Frequently asked questions

### Is GREF User free?

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

### Is Holafly eSIM free?

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

### Which has better reviews, GREF User or Holafly eSIM?

Holafly eSIM is rated higher. GREF User averages 1.0 out of 5 from 2 ratings, while Holafly eSIM averages 4.8 from 42K ratings.

### Do GREF User or Holafly eSIM have ads?

Neither GREF User nor Holafly eSIM shows ads.

### Which is updated more often, GREF User or Holafly eSIM?

GREF User ships an update every 3 months, and Holafly eSIM every 2 weeks. Most recently, GREF User was updated on October 24, 2026 and Holafly eSIM on November 3, 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.*