Speedify Uses Your iPhone’s 4G/5G Cellular as Backup for Starlink to Keep You Online

Why Using Starlink Internet Alone Isn’t Enough

Starlink delivers strong download speeds, typically between 25 and 220 Mbps, depending on your plan and location. But Starlink internet has real limitations: weather events, dish obstructions, satellite congestion, and motor or thermal issues can cause internet slowdowns or full dropouts.

When Starlink internet drops out, your iPhone’s active calls, video conferences, and uploads drop out with it, unless you have a second internet connection already running.

Your iPhone already has 4G/5G cellular built in. Speedify uses both internet connections at the same time, so internet traffic automatically shifts to 4G/5G cellular the moment Starlink internet degrades. You can stay online without reconnecting manually.

How Speedify Works on iPhone by Combining Starlink and 4G/5G Cellular

Speedify runs on your iPhone and monitors both your Starlink Wi-Fi connection and your 4G/5G cellular connection in real time. Speedify measures internet performance indicators such as latency, packet loss, and available upload and download bandwidth on each internet connection every few milliseconds.

When both internet connections are healthy, Speedify uses both simultaneously, delivering up to 95% of their combined upload and download speeds. When one internet connection becomes poor or drops, Speedify shifts all traffic to the healthier internet connection instantly. Active calls and video sessions are never interrupted.

Speedify also encrypts all your internet traffic, so your data stays protected whether you’re on Starlink, 4G/5G cellular, or both at once.

For teams and businesses: Speedify’s Pair & Share feature lets multiple iPhones and other devices share 4G/5G cellular connections wirelessly, so everyone on the team benefits from combined Starlink and 4G/5G cellular coverage, not just the person holding the phone.

How to Use Starlink and 4G/5G Mobile Data at Once on iPhone with Speedify

Step 1: Make Sure 4G/5G Cellular Is On

On your iPhone, go to Settings > Cellular and confirm that Cellular Data is switched on. Check that you have signal: at least one or two bars of 4G/5G coverage is enough for Speedify to use.

Step 2: Connect to Your Starlink Wi-Fi Network

Make sure your Starlink dish is set up and your Starlink Wi-Fi network is broadcasting. On your iPhone, go to Settings > Wi-Fi and connect to your Starlink network. Confirm the Wi-Fi icon appears in your iPhone’s status bar.

Step 3: Download and Run Speedify

Download Speedify from the App Store and open it. Speedify will automatically detect both your Starlink Wi-Fi and your 4G/5G cellular connection and start combining them immediately. No manual configuration required.

Once running, Speedify handles everything in the background: bonding both connections for faster upload and download speeds, monitoring for dropouts, failing over automatically, and encrypting your traffic.

Who Needs to Use Speedify with Starlink on iPhone

• Remote workers and field teams who rely on Starlink for primary internet access and can’t afford dropped calls or failed uploads
• Live streamers and content creators using Starlink at events or in remote locations where a single connection isn’t reliable enough
• Travelers and van-lifers moving between Starlink coverage zones who need seamless failover to 4G/5G cellular
• Businesses deploying iPhones in field operations where Starlink serves as primary connectivity and cellular is the backup path
• Anyone on Starlink who has experienced a drop during a video call, upload, or live stream and wants it to never happen again

Speedify Is Used on Millions of Devices Worldwide

Speedify has powered stronger Internet for millions of consumers since 2014

15M

Millions of Speedify downloads worldwide, and growing every day

5⭐️

More than 75,000 5-star reviews for Speedify in the iOS and Android app stores

82

Points of Speedify presence in datacenters around the globe

500TB

Hundreds of terabytes of fast, secure data streamed every week via Speedify

Speedify Partners

Speedify partners with these amazing organizations to deliver better internet and next-generation networking technology to their customers and employees.

Speedify Also Monitors Your Starlink Dish Status on iPhone

Speedify displays real-time alerts about your Starlink dish directly in the app dashboard. If your dish detects a stuck actuator motor, a non-vertical mast, or a thermal throttle condition, Speedify shows you the alert on your iPhone. These alerts are triggered if the condition was detected at least once in the previous 15 seconds and persist as long as the condition is active.

This means Speedify doesn’t just fix your internet connection. Speedify tells you what’s wrong with your Starlink hardware before the problem gets worse.

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Embed Speedify software into your app or hardware products and leverage the core channel bonding technology of Speedify in new and interesting ways.

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