Comparison

3DMark vs Watt Charging Speed

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

3DMark

Benchmark your iOS device to measure and compare its graphics performance. Test the latest iPhones and iPads with various demanding game-like scenes, including ray tracing, to understand real-world gaming capabilities and track performance changes over time.

Highlights
  • GPU performance testing
  • Ray tracing benchmarks
  • Gaming workload simulations
  • Cross-platform comparisons
  • Stress testing for sustained performance
  • Device performance rankings
  • Performance change tracking
Features
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Test and compare the performance of the latest iPhones and iPads with this free and easy-to-use benchmarking app. 3DMark Solar Bay Extreme is a ray-traced gaming benchmark, designed to test the graphics performance of high-end iPhones and iPads. 3DMark Steel Nomad Light is our heaviest non-raytracing benchmark for iOS. Steel Nomad Light lets you compare the performance of the latest iPhones and iPads in heavy gaming workloads. Run 3DMark Solar Bay to compare the latest iOS devices that support gaming with real-time ray tracing. Ray tracing is a new technology in games that is used to produce far more realistic lighting. It has three sections with increasingly higher ray tracing workloads, helping you understand how enabling ray tracing will affect your device’s gaming performance. 3DMark Wild Life is a cross-platform benchmarking app for comparing the performance of the latest smartphones and tablets. Use 3DMark Wild Life Extreme to test and compare the latest iPhones and iPads as well as Apple Mac computers with the M1 chip. Or run the original Wild Life benchmark to test older iPhone and iPad models. 3DMark Steel Nomad Light, Solar Bay, Wild Life, and Wild Life Extreme offer two ways to test your device: a quick benchmark that tests instant performance and a longer stress test that shows how your device performs under longer periods of heavy load. 3DMark benchmarks measure GPU performance by rendering a demanding game-like scene in real-time. The faster the scene runs, the higher your benchmark score. With its charts, lists and rankings, 3DMark gives you unique insights into the performance of your device. - Measure the GPU performance of your iPhone and iPad. - Compare your score with others from the same model. - See how your device compares with the latest models. - See how performance changes with each iOS update. - Search, filter and sort the in-app rankings to compare popular devices. 3DMark is a free app. There are no ads or in-app purchases. Download it today and join millions of people who choose 3DMark for accurate and impartial benchmark results. This app is for non-commercial use only. - Business users, contact UL.BenchmarkSales@ul.com for licensing. - Members of the press, please contact UL.BenchmarkPress@ul.com.

About

Watt Charging Speed

Monitor your device's charging speed in real-time watts. Compare chargers, track charging history, and estimate time to full charge. This app is private by design, with no ads or tracking.

Highlights
  • Real-time wattage display
  • Color-coded speed indicator
  • Estimated time to full charge
  • Benchmark different chargers
  • Charging history tracking
  • Offline functionality
Features
Currently charting
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How fast is your charger? Plug in your iPhone or iPad and Watt Charging Speed estimates your charging speed in watts: the power reaching your battery. Tell a fast charger from a slow one, and see whether your cable keeps up. HOW IT WORKS, HONESTLY iPhone and iPad don't let apps read the charging power from the hardware. Watt works out the charging speed from how quickly your battery percentage rises, combined with your device's battery capacity. That means: • The figure is an estimate of the watts reaching the battery. That is less than the charger's rated output: a 20 W charger usually reads below 20 W, and that is expected • iOS reports the battery level in steps, so the first reading can take up to about 10% of charging. After that, the figure follows your charge • The longer a session runs, the steadier the estimate • If Watt doesn't know your device's battery capacity, it says so and uses a typical value WHAT YOU SEE • A watt estimate while you charge • Color-coded speed labels: Fast Charging, Charging, Slow Charging and Trickle Charge • A charging ring and a graph of the session • Estimated time until fully charged • A notice when charging seems to have paused, for example with Optimized Battery Charging COMPARE CHARGERS AND CABLES • Create benchmark tests for a battery range (for example 30% → 80%) and run one with each charger or cable • Compare the results for the same range • See which charger or cable performs best CHARGING HISTORY • Sessions are saved automatically with average watts, duration and battery range • Label each session with the charger you used • Compare sessions over time to spot a slow cable or an aging charger MADE FOR YOUR DEVICE • Has the battery size of every iPhone and iPad that runs iOS 18.6: from iPhone XS to iPhone 18 Pro Max and iPhone Duo, and from older iPads to the latest iPad Pro (M5) • On a few iPhone Pro models Watt asks once whether your iPhone has a SIM card tray, because the battery differs slightly. You can change the answer in Settings • On iPad and an open iPhone Duo, the charging ring and status stay on screen while you switch between Details and Benchmark PRIVATE, ONE PRICE • Pay once: no subscription, no ads, no account • No tracking. All data stays on your device • Works offline FEEDBACK Something looks off, or you have an idea? Tap Send Feedback in Settings or in How It Works. It opens an email with your app version, iOS version and device model filled in. GOOD TO KNOW iOS pauses apps in the background, so keep Watt Charging Speed open while it follows your charge. It keeps the screen awake during a session so nothing is interrupted. Perfect for testing a new charger, finding out why charging feels slow, or settling which of your cables belongs in the drawer.

Screenshots

3DMark4 screens
Watt Charging Speed3 screens

Verdict

The call

The clearest difference is price: 3DMark at Free against Watt Charging Speed's $1.99. 3DMark also leads on review sentiment (53% vs 20%) and ratings volume (86 vs 13). Watt Charging Speed's advantage is update cadence (every 3 weeks vs every 2 months) and chart position (#92 vs unranked). On rating, 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

CostPrice · In-app purchases · Ads · Monetization

3DMark is free to download; Watt Charging Speed costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Watt Charging Speed holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: 3DMark has 86 ratings behind it against 13, so its average is the more settled of the two. Written reviews complicate that: 53% of 3DMark's written reviews are positive against 20% of Watt Charging Speed's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

3DMark ships an update every 2 months, Watt Charging Speed every 3 weeks. The most recent releases landed on October 21, 2026 and October 28, 2026 respectively.

Scorecard7 real differences · 4 level
3DMark versus Watt Charging Speed: the parameters behind the verdict, then further details
Parameter3DMarkWatt Charging Speed
PriceFree — better$1.99
Rating4.0 (86 ratings)4.2 (13 ratings) — better
Positive reviews52.7% of reviews — better20.0% of reviews
Number of ratings86 — better13
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#92 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.6
Further details — not scored
Size2.0 GB3 MB
Age rating4+4+
DeveloperUnderwriters Laboratories Inc.Sindre Sørensen

Customer experience

3DMark

All ratings72 ratings
Positive73.6%
Neutral8.3%
Negative18.1%
Written reviews93 reviews
Positive52.7%
Neutral12.9%
Negative34.4%

Watt Charging Speed

All ratings13 ratings
Positive84.6%
Neutral0.0%
Negative15.4%
Written reviews5 reviews
Positive20.0%
Neutral0.0%
Negative80.0%

In-app purchases

None

3DMark

No in-app purchases

None

Watt Charging Speed

No in-app purchases

Questions

Is 3DMark free?
3DMark is free to download, with no in-app purchases.
Is Watt Charging Speed free?
Watt Charging Speed costs $1.99, with no in-app purchases.
Which has better reviews, 3DMark or Watt Charging Speed?
Watt Charging Speed is rated higher. 3DMark averages 4.0 out of 5 from 86 ratings, while Watt Charging Speed averages 4.2 from 13 ratings.
Do 3DMark or Watt Charging Speed have ads?
Neither 3DMark nor Watt Charging Speed shows ads.
Which is updated more often, 3DMark or Watt Charging Speed?
3DMark ships an update every 2 months, and Watt Charging Speed every 3 weeks. Most recently, 3DMark was updated on October 21, 2026 and Watt Charging Speed on October 28, 2026.

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