FlexiFone vs OpenPort Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FlexiFone
This app provides a Multi-Network eSIM for seamless access to major UK networks, ensuring the best coverage wherever you are. You can maintain your primary number while using the eSIM for data, with automatic switching to the strongest signal.
- Multi-Network eSIM access
- Automatic network switching
- Best coverage in UK
- Keep primary number
- Data-focused eSIM
- Physical SIM option
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FlexiFone enables you to get a Multi-Network eSIM which would enable you to access EE, O2, Vodafone & Three's network in the UK. This means that you will always have the best network coverage across the UK. Best part about this is that you can keep your current or primary number, and use the FlexiFone eSIM for data. Your eSIM / SIM will automatically connect to the cellular network with the strongest signal, hence enabling you to have the best coverage even in the countryside, and dense city centers. We do offer Physical-SIMs as well, if you do not have an eSIM-enabled device. Getting started is simple, just download the app, select a plan, and setup your eSIM / Physical-SIM and you're good to go!
OpenPort Viewer
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OpenPort Viewer allows you to access your localhost from anywhere. Connect to your local development server remotely using OpenPort Host running on your Mac. Perfect for testing webhooks, APIs, and sharing work-in-progress with clients on the go. Commonly used to access Home Assistant (8123), n8n (5678), and OpenCode (4096)
Screenshots
Verdict
The clearest difference is update cadence: OpenPort Viewer at every 9 days against FlexiFone's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
FlexiFone ships an update every 2 months, OpenPort Viewer every 9 days. The most recent releases landed on October 1, 2026 and October 11, 2026 respectively.
| Parameter | FlexiFone | OpenPort Viewer |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| Update frequency | Every 2 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 64 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | FlexiFone Telecommunications Limited | Chee Siang Tee |
In-app purchases
FlexiFone
No in-app purchases
OpenPort Viewer
No in-app purchases
