Watt Charging Speed Downloads & RevenueWatt Charging Speed · App Store
Watt Charging Speed is #49 in Utilities Paid in Japan and charting in 6 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperSindre Sørensen
CategoryUtilities
Price1.99 USD
Released
Rating★ 4.2 (13)
Version1.5.1
Age rating4+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)1k+ worldwide
Watt Charging Speed update history & changes
Last change · 58 events since 10 Mar 2026Full timeline ↓✏️Description updated✏️New iPad screenshots📦Updated to version 1.5.1📦Updated to version 1.5📈Entered the top 10📈New best rank in the overall chart: #45🆕First spotted by AppInsider🆕Its developer released another app: DoF Studio: Depth of Field
Full timeline · 58 events
- ✏️Watt Charging Speed: description updated· SA
- ✏️Watt Charging Speed: new iPad screenshots· SA
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 5) · SA
- ✏️Watt Charging Speed: renamedWatt Charging Speed: Meter → Watt Charging Speed · SA
- 📦Watt Charging Speed updated to version 1.5.1Send Feedback now asks for a short note first, so your email never arrives empty. Mail then opens with your note above the device details.
- ✏️Watt Charging Speed: description updated· BR
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 5) · BR
- ✏️Watt Charging Speed: description updated· CA
- ✏️Watt Charging Speed: new iPad screenshots· CA
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 5) · CA
- ✏️Watt Charging Speed: renamedWatt Charging Speed: Meter → Watt Charging Speed · CA
- ✏️Watt Charging Speed: description updated· IN, GB, AU
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 5) · IN, AU
- ✏️Watt Charging Speed: renamedWatt Charging Speed: Meter → Watt Charging Speed · IN, GB, AU
- ✏️Watt Charging Speed: description updated· KR
- ✏️Watt Charging Speed: new iPad screenshots· KR
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 3) · KR
- ✏️Watt Charging Speed: renamedWatt Charging Speed: 와트 측정 → Watt Charging Speed: 충전속도 측정 · KR
- ✏️Watt Charging Speed: new iPad screenshots· GB
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 3) · GB
- ✏️Watt Charging Speed: description updated· DE
- ✏️Watt Charging Speed: new iPad screenshots· DE
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 3) · DE
- ✏️Watt Charging Speed: new iPad screenshots· AU
- ✏️Watt Charging Speed: description updated· US
- ✏️Watt Charging Speed: new iPad screenshots· US
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 5) · US
- ✏️Watt Charging Speed: renamedWatt Charging Speed: Meter → Watt Charging Speed · US
- ✏️Watt Charging Speed: app got bigger2 MB → 3 MB (+16%)
- ✏️Watt Charging Speed: description updated· JP
- ✏️Watt Charging Speed: new iPad screenshots· JP
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 3) · JP
- ✏️Watt Charging Speed: renamedWatt Charging Speed：ワット計 → Watt Charging Speed：充電速度チェッカー · JP
- ✏️Watt Charging Speed: description updated· AE
- ✏️Watt Charging Speed: new iPad screenshots· AE
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 3) · AE
- ✏️Watt Charging Speed: renamedWatt Charging Speed: Meter → Watt Charging Speed · AE
- 📦Watt Charging Speed updated to version 1.5New devices, a clearer first reading and a better iPad layout:
• The first reading can take up to about 10% of charging, and Watt now says so while it waits
• Battery sizes for iPhone 18 Pro, iPhone 18 Pro Max, iPhone Duo and iPhone 17e, and for iPad Pro (M5), iPad Air (M3 and M4), iPad (A16) and iPad mini (A17 Pro)
• Battery sizes for iPhone XS, iPhone XS Max, iPhone XR and older iPads too, so every iPhone and iPad that runs iOS 18.6 is covered
• Corrected battery sizes for iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max and iPad (10th generation)
• iPhone 17 Pro and iPhone 17 Pro Max outside the US: battery data is now more accurate for your model, so readings may differ slightly from earlier sessions
• On some iPhone Pro models Watt asks once whether your iPhone has a SIM card tray, so it uses the right battery. You can change the answer in Settings
• Devices Watt doesn't know yet now show "Battery capacity estimated for this device"
• New on iPad and an open iPhone Duo: the charging ring and status stay on screen while you switch between Details and Benchmark
• New: Send Feedback in Settings and in How It Works… more - ✏️Watt Charging Speed: new screenshots3 screenshots (was 5) · TH
- 📈Watt Charging Speed entered the top 10Top Paid · Utilities · AE
- 📈Watt Charging Speed new best rank in the overall chart: #45Top Paid · All Apps · AE
- 📈Watt Charging Speed new best rank in the overall chart: #60Top Paid · All Apps · AE
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 5) · GB
- ✏️Watt Charging Speed: new iPad screenshots· KR
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 5) · KR
- ✏️Watt Charging Speed: new iPad screenshots· JP
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 5) · JP
- ✏️Watt Charging Speed: new iPad screenshots· DE
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 5) · DE
- ✏️Watt Charging Speed: new iPad screenshots· AE
- ✏️Watt Charging Speed: new screenshots3 screenshots (was 5) · AE
- 📈Watt Charging Speed entered the top 10Top Paid · Utilities · SA
- 📈Watt Charging Speed entered the top 10Top Paid · Utilities · ID
- 🆕Watt Charging Speed first spotted by AppInsider#13 in Top Paid · Utilities · Germany
- 📦Watt Charging Speed version 1.4Genauere Sitzungen und Benchmarks:
• Sitzungen, die bis 100 % laden, werden jetzt mit korrektem Endstand und korrekter Dauer gespeichert
• Ein Benchmark speichert kein irreführendes Ergebnis mehr, wenn die App beim Erreichen des Zielstands im Hintergrund war — er bittet dich stattdessen, den Test zu wiederholen
• Ein abgeschlossener Benchmark hält den Bildschirm nicht mehr wach und blockiert keine anderen Tests
• Die Live-Wattanzeige folgt der aktuellen Rate, wenn das Laden langsamer wird, und sehr geringe Leistung wird korrekt als Erhaltungsladung angezeigt
• Text wird nicht mehr mit „…“ abgeschnitten, wenn eine große Bedienungshilfen-Textgröße aktiv ist… more - 🆕Watt Charging Speed: its developer released another app: DoF Studio: Depth of Field
- 🆕Watt Charging Speed: its developer released another app: Disc Golf Scorecard Pro
- 🆕Watt Charging Speed released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.2 ★
13 ratings
Measured
Best rank now
#49
Utilities PaidMeasured
Watt Charging Speed at a glance
AI summary written from our chart and store data, 2026-09-26. It can be wrong: check the numbers above.
A paid utility app for iPhone and iPad users that estimates real-time charging wattage to help diagnose cable and charger performance. The app is gaining traction in the Utilities category, ranking #2 in South Africa and #7 in Indonesia, indicating strong early adoption in specific regional markets.
Similar apps: AccuBattery, Battery Life, Charger Doctor
Watt Charging Speed on the App Store
App details
App ID
6760211479
Publisher
Sindre Sørensen
On the store since
Mar 2026
Under a year
Minimum OS
iOS 18.6+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
15
EN FR DE ID IT JA KO MS NB PT ZH ES …
Size
3 MB
Also listed in
Productivity
Watt Charging Speed downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Watt Charging Speed's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | UtilitiesPaid | #49 |
| Japan | All AppsPaid | #191 |
 United States | UtilitiesPaid | #125 |
| Germany | UtilitiesPaid | #67 |
 Saudi Arabia | UtilitiesPaid | #25 |
 Brazil | UtilitiesPaid | #46 |
| Saudi Arabia | All AppsPaid | #180 |
 Australia | UtilitiesPaid | #165 |
Apps near Watt Charging Speed on the chart
Utilities Paid, around #49.
Ratings
App Store, worldwide.
Rating
4.2 ★
13 ratings
Measured
Ratings
13
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
46/100
faster than 43% of Utilities apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about Watt Charging Speed
From recent reviews.
About Watt Charging Speed
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.
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.
Latest updates
1.5.1
Send Feedback now asks for a short note first, so your email never arrives empty. Mail then opens with your note above the device details.
1.5
New devices, a clearer first reading and a better iPad layout:
• The first reading can take up to about 10% of charging, and Watt now says so while it waits
• Battery sizes for iPhone 18 Pro, iPhone 18 Pro Max, iPhone Duo and iPhone 17e, and for iPad Pro (M5), iPad Air (M3 and M4), iPad (A16) and iPad mini (A17 Pro)
• Battery sizes for iPhone XS, iPhone XS Max, iPhone XR and older iPads too, so every iPhone and iPad that runs iOS 18.6 is covered
• Corrected battery sizes for iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max and iPad (10th generation)
• iPhone 17 Pro and iPhone 17 Pro Max outside the US: battery data is now more accurate for your model, so readings may differ slightly from earlier sessions
• On some iPhone Pro models Watt asks once whether your iPhone has a SIM card tray, so it uses the right battery. You can change the answer in Settings
• Devices Watt doesn't know yet now show "Battery capacity estimated for this device"
• New on iPad and an open iPhone Duo: the charging ring and status stay on screen while you switch between Details and Benchmark
• New: Send Feedback in Settings and in How It Works
1.4
Genauere Sitzungen und Benchmarks:
• Sitzungen, die bis 100 % laden, werden jetzt mit korrektem Endstand und korrekter Dauer gespeichert
• Ein Benchmark speichert kein irreführendes Ergebnis mehr, wenn die App beim Erreichen des Zielstands im Hintergrund war — er bittet dich stattdessen, den Test zu wiederholen
• Ein abgeschlossener Benchmark hält den Bildschirm nicht mehr wach und blockiert keine anderen Tests
• Die Live-Wattanzeige folgt der aktuellen Rate, wenn das Laden langsamer wird, und sehr geringe Leistung wird korrekt als Erhaltungsladung angezeigt
• Text wird nicht mehr mit „…“ abgeschnitten, wenn eine große Bedienungshilfen-Textgröße aktiv ist
Store changes
What Watt Charging Speed changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Description updated
New iPad screenshots
New screenshots
3 screenshots (was 5)
