Developer Claims Three Major Carriers Throttle iPhone and iPad Data Speeds

speedtestAccording to Joseph Brown, one of the developers behind the iTweakiOS site that provides hacked carrier updates for iOS users, Apple is purposely throttling iPhone data speeds to "even out" the network as Apple's phones consume more data than other smartphones.

Brown states that AT&T, Verizon, and Sprint limit the iPhone's data speeds and provides evidence in the form of snapshots of network settings. For example, AT&T limits the iPhone 5 to Category 10 (14.4Mbps) HSDPA despite the fact that the network is able to support up to Category 14 (21.1Mbps) HSDPA+ and the iPhone supports Category 24 (42.2Mbps) DC-HSDPA+.

Brown goes on to point out similar throttling code present in the LTE and 3G network settings of both Verizon and Sprint, for the iPhone and the iPad. His theory is that Apple (or the carriers themselves) are throttling data speeds in order to cut down on the iPhone's data usage.

- AT&T limits HSPA+ and permanently throttles LTE (unless hack is applied)
- Verizon permanently throttles LTE (unless hack is applied)
- Verizon and Sprint throttle down 3G (unless hack is applied)
- Apple has band preferences set for T-Mobile and AT&T causing signal issues (very much fixable by Apple and the carrier and is currently being looked into, from I've been told)

T-Mobile, the last network to receive the iPhone, is the only carrier that does not appear to throttle iPhone data usage. Though Brown places the blame for the network settings on Apple, it is unclear whether it is Apple or the carriers themselves at fault, and the reasoning behind the alleged throttling is equally unclear. Sprint, AT&T, and Verizon have all historically throttled the data speeds of high volume users.

To thwart the apparent throttling, iTweakiOS offers a number of carrier hacks that are designed to increase data speeds.

Update: AnandTech has debunked this claim and says that neither Apple nor the carriers are throttling data speeds.

Popular Stories

iPhone 17 Pro 3 4ths Perspective Aluminum Camera Module 1

New iPhone 17 Pro Details: Brighter Display, Best Battery Life, and More

Wednesday September 3, 2025 5:33 am PDT by
Apple's iPhone 17 Pro and iPhone 17 Pro Max models will feature a number of significant display, thermal, and battery improvements, according to new late-stage rumors. According to the Weibo leaker known as "Instant Digital," the iPhone 17 Pro models will feature displays with higher brightness, making it more suitable for use in direct sunlight for prolonged periods. The iPhone 16 Pro and...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 and iPhone 17 Pro Prices Estimated Ahead of Apple Event Next Week

Tuesday September 2, 2025 1:50 pm PDT by
Just one week before Apple is expected to unveil the iPhone 17 series, an analyst has shared new price estimates for the devices. Here are J.P. Morgan analyst Samik Chatterjee's price estimates for the iPhone 17 series in the United States, according to 9to5Mac: Model Starting Price Model Starting Price Change iPhone 16 $799 iPhone 17 ...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 Pro Clear Case Leak Reveals Three Key Changes

Sunday August 31, 2025 1:26 pm PDT by
Apple is expected to unveil the iPhone 17 series on Tuesday, September 9, and last-minute rumors about the devices continue to surface. The latest info comes from a leaker known as Majin Bu, who has shared alleged images of Apple's Clear Case for the iPhone 17 Pro and Pro Max, or at least replicas. Image Credit: @MajinBuOfficial The images show three alleged changes compared to Apple's iP...
iphone 16 pro ghost hand

iPhone 17 Pro: 5 Reasons Not to Upgrade This Year

Monday September 1, 2025 4:35 am PDT by
Apple will launch its new iPhone 17 series this month, and the iPhone 17 Pro models are expected to get a new design for the rear casing and the camera area. But more significant changes to the lineup are not expected until next year, when the iPhone 18 models arrive. If you're thinking of trading in your iPhone for this year's latest, consider the following features rumored to be coming to...
iPhone 17 Pro Dark Blue and Orange

iPhone 17 Release Date, Pre-Orders, and What to Expect

Thursday August 28, 2025 4:08 am PDT by
An iPhone 17 announcement is a dead cert for September 2025 – Apple has already sent out invites for an "Awe dropping" event on Tuesday, September 9 at the Apple Park campus in Cupertino, California. The timing follows Apple's trend of introducing new iPhone models annually in the fall. At the event, Apple is expected to unveil its new-generation iPhone 17, an all-new ultra-thin iPhone 17...
Apple Watch Ultra 2 Complications

Apple Watch Ultra 3 Coming Next Week: Eight Reasons to Upgrade

Thursday September 4, 2025 7:38 am PDT by
We're only days away from Apple's "Awe dropping" fall event scheduled to take place on Tuesday, September 9 – and along with the new iPhone 17 series, we're going to get a new version of the Apple Watch Ultra for the first time since 2023. By the time the Ultra 3 is unveiled, it will have been two years since the previous model arrived. The intervening period has left plenty of room for...

Top Rated Comments

k1121j Avatar
160 months ago
Lol

They do?

Image (http://i.imgur.com/HFxQqZN.png?1)

Looks like you are testing your WIFI to me
Score: 23 Votes (Like | Disagree)
jpmcnown Avatar
160 months ago
This is really a good idea because the iPhone does use more and that's not fair to us Android or Windows users.

T-Mobile will catch on soon, once more people hop on their network.

That was a really pathetic effort to light a fanboy fire.
Score: 22 Votes (Like | Disagree)
lcmazza Avatar
160 months ago
Why throttle if there's a quota limit anyway?

Seems dumb.
Score: 20 Votes (Like | Disagree)
669532 Avatar
160 months ago
"...it is unclear whether it is Apple or the carriers themselves at fault"

Not both?
Score: 15 Votes (Like | Disagree)
e-coli Avatar
160 months ago
And here come the lawsuits.
Score: 15 Votes (Like | Disagree)
86939 Avatar
160 months ago
Looks like you are testing your WIFI to me
I'm on wifi right now, this why you see it in the screenshot. Those results were from three days ago via cell connection in Myrtle Beach, SC.
Score: 10 Votes (Like | Disagree)