# Constella Mobile vs ProntoSIM

The clearest difference is ads: Constella Mobile at none against ProntoSIM's shown. Constella Mobile also leads on monetization model (free vs free with in-app purchases). ProntoSIM's advantage is update cadence (every 9 days vs every 2 months) and iOS requirement (15.1 vs 17.5). On price, rating, review sentiment and ratings volume there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Constella Mobile against 5.0 for ProntoSIM. Both are backed by a comparable volume of ratings — 11 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Constella Mobile ships an update every 2 months, ProntoSIM every 9 days. The most recent releases landed on July 17, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Constella Mobile | ProntoSIM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (11 ratings)](https://appshunter.io/ios/app/constella-mobile/id6544783228/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/prontosim/id6736466709/reviews) |
| Number of ratings | **11** | 5 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 35 MB | 56 MB |
| Requires iOS | 17.5 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Orion Software LLC](https://appshunter.io/developer/1754402580) | [SwiftyByte SARL](https://appshunter.io/developer/1772063457) |

## What reviewers say

### Constella Mobile

[App page](https://appshunter.io/ios/app/constella-mobile/id6544783228)

This app provides global data connectivity for travelers using eSIM technology. Enjoy seamless, affordable data access in over 192 countries without expensive roaming charges or physical SIM cards. It offers easy setup, a user-friendly interface, and secure, reliable service.

**Highlights:** Seamless eSIM connectivity, Global coverage in 192+ countries, Affordable data plans, Easy eSIM activation, User-friendly data management, Secure and reliable connection

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

**In-app purchases:** none


### ProntoSIM

[App page](https://appshunter.io/ios/app/prontosim/id6736466709)

Instantly purchase and activate eSIMs for global connectivity. Avoid roaming fees with affordable local data plans in over 190 countries. Perfect for travelers and digital nomads.

**Highlights:** Instant eSIM activation, Global coverage in 190+ countries, Affordable local data plans, No contracts or hidden fees, Manage multiple eSIM profiles, 24/7 customer support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Constella Mobile free?

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

### Is ProntoSIM free?

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

### Which has better reviews, Constella Mobile or ProntoSIM?

Constella Mobile and ProntoSIM are both rated 5.0 out of 5 on the App Store, from 11 and 5 ratings respectively.

### Do Constella Mobile or ProntoSIM have ads?

ProntoSIM shows ads; Constella Mobile does not.

### Which is updated more often, Constella Mobile or ProntoSIM?

Constella Mobile ships an update every 2 months, and ProntoSIM every 9 days. Most recently, Constella Mobile was updated on July 17, 2026 and ProntoSIM on September 23, 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.*