ViewPortal Downloads & RevenueViewPortal - Responsive Tester · App Store
ViewPortal - Responsive Tester is #14 in Developer Tools Paid in Germany and charting in 3 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperFlavr Web Dev Ltd
CategoryDeveloper Tools
Price4.99 USD
Released
Rating★ 0.0 (0)
Version1.2.0
Age rating17+
First seen by us
25 Sep 2026
25 Sep 2026ViewPortal - Responsive Tester update history & changes
Last change · 17 events since 23 Jun 2026Full timeline ↓✏️Description updated✏️New iPad screenshots📦Updated to version 1.2.0📦First update in 136 days📈Entered the top 100📈Entered the top 10🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 17 events
- ✏️ViewPortal - Responsive Tester: description updated· CN
- ✏️ViewPortal - Responsive Tester: new iPad screenshots· CN
- ✏️ViewPortal - Responsive Tester: new screenshots8 screenshots (was 5) · CN
- ✏️ViewPortal - Responsive Tester: description updated· JP, US, DE
- ✏️ViewPortal - Responsive Tester: new iPad screenshots· JP, US, DE
- ✏️ViewPortal - Responsive Tester: new screenshots8 screenshots (was 5) · JP, US, DE
- 📦ViewPortal - Responsive Tester updated to version 1.2.0Built for iPhone Duo, plus landscape and a light theme.
• IPHONE DUO: ViewPortal fits every pose. Closed, the controls tuck into a rail beside the camera so the preview gets the full height. Open, previews get big and multi-view sits side by side. Half-folded, previews stay clear of the hinge.
• TEST FOR IPHONE DUO: new Duo closed and Duo open presets. Closed recreates Safari's side column at the true 382px page width; open starts in landscape, just like unfolding.
• LANDSCAPE ON IPHONE: rotate any iPhone to see iPhone, iPad and Mac side by side in multi-view.
• LIGHT OR DARK: pick Light, Dark or match your system, in Dev tools.
• Fixed: tapping Go on the page you're already viewing now reloads it.
Still no accounts, no analytics, no tracking.… more - 📦ViewPortal - Responsive Tester: first update in 136 days
- 📈ViewPortal - Responsive Tester entered the top 100Top Grossing · Developer Tools · DE
- 📈ViewPortal - Responsive Tester entered the top 10Top Paid · Developer Tools · DE
- 📈ViewPortal - Responsive Tester charting in a new countryGermany
- 📈ViewPortal - Responsive Tester entered the top 100Top Paid · Developer Tools · US
- 📈ViewPortal - Responsive Tester charting in a new countryUnited States
- 📈ViewPortal - Responsive Tester charting in a new countryChina
- 🆕ViewPortal - Responsive Tester first spotted by AppInsider#72 in Top Grossing · Developer Tools · Japan
- 📦ViewPortal - Responsive Tester version 1.0.0No release notes
- 🆕ViewPortal - Responsive Tester 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
0.0 ★
0 ratings
Measured
Best rank now
#14
Developer Tools PaidMeasured
ViewPortal - Responsive Tester at a glance
AI summary written from our chart and store data, 2026-11-06. It can be wrong: check the numbers above.
ViewPortal is a paid iOS utility for web developers and designers that renders websites at true device dimensions to test responsive layouts. The app currently ranks #5 in the German Developer Tools Paid chart, indicating strong traction in a specific regional market despite having no user ratings yet.
Similar apps: Responsinator, BrowserStack, Screenfly
ViewPortal - Responsive Tester on the App Store
App details
App ID
6779422141
Publisher
Flavr Web Dev Ltd
On the store since
Jun 2026
Under a year
Minimum OS
iOS 16.4+
iPhone 8 and later
Devices
iPhone · iPad
Universal purchase
Content rating
17+
1 content note below
Languages
1
EN
Size
35 MB
Also listed in
Graphics & Design
Content notesUnrestricted Web Access
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Germany | Developer ToolsPaid | #14 |
 United States | Developer ToolsPaid | #44 |
| Germany | Developer ToolsGrossing | #87 |
 China | Developer ToolsPaid | #198 |
Apps near ViewPortal - Responsive Tester on the chart
Developer Tools Paid, around #14.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
What users say about ViewPortal - Responsive Tester
From recent reviews.
About ViewPortal - Responsive Tester
See exactly how any website looks on every device, straight from your iPhone or iPad.
ViewPortal loads any URL in a real browser engine and renders it at true device sizes, so what you see is what your visitors get. No scaled-down screenshot, no guesswork.
Type a URL. Pick a device. Done.
BUILT FOR IPHONE DUO
- Closed: the controls move into a rail beside the camera, so the preview gets the full height.
- Open: big previews and side-by-side multi-view on the inner display.
- Half-folded: previews stay on their own page, clear of the hinge.
- iPhone Duo closed and open presets for testing your own sites at Duo sizes, including Safari's side column on the cover display.
TRUE-TO-DEVICE VIEWPORTS
- Pages render at each device's exact width, so layouts wrap, break and reflow just like they do in real life.
- The layout viewport is forced to the real width, so media queries and breakpoints fire correctly.
- Live pixel-size readouts show the precise dimensions you are testing.
EVERY DEVICE, ONE TAP AWAY
- iPhone: SE, 17e, 17, 17 Pro, 17 Pro Max, iPhone Duo (closed and open).
- iPad: mini, iPad, Pro 11", Pro 13".
- Mac: MacBook Neo, Air 13", Air 15", Pro 14", Pro 16", iMac 24".
- Faux device chrome — notch, Dynamic Island and status bar — drawn in for realistic framing.
- Flip any device between portrait and landscape.
SIDE-BY-SIDE MULTI-VIEW
- On iPad, iPhone Duo or any iPhone in landscape, place phone, tablet and desktop next to each other.
- Every pane loads the same URL; configure each one independently.
- Focus or go fullscreen on any pane for a closer look.
PINCH, ZOOM, EXPLORE
- Crisp pinch-to-zoom, exactly like a real browser.
- Inspect the smallest details, then step back to see the whole layout.
PREVIEW YOUR LOCAL WORK
- Point ViewPortal at localhost or a LAN dev server (such as 192.168.x.x).
- Check work in progress and catch breakpoint bugs before you ship.
- Favourites and recents keep the sites you test most a tap away.
PRIVATE BY DESIGN
- No accounts. No analytics. No tracking.
- URLs, favourites and preferences stay on your device and are never transmitted.
A clean, monochrome, ink-on-paper interface keeps the focus on your work.
Responsive design testing, wherever you are.
ViewPortal loads any URL in a real browser engine and renders it at true device sizes, so what you see is what your visitors get. No scaled-down screenshot, no guesswork.
Type a URL. Pick a device. Done.
BUILT FOR IPHONE DUO
- Closed: the controls move into a rail beside the camera, so the preview gets the full height.
- Open: big previews and side-by-side multi-view on the inner display.
- Half-folded: previews stay on their own page, clear of the hinge.
- iPhone Duo closed and open presets for testing your own sites at Duo sizes, including Safari's side column on the cover display.
TRUE-TO-DEVICE VIEWPORTS
- Pages render at each device's exact width, so layouts wrap, break and reflow just like they do in real life.
- The layout viewport is forced to the real width, so media queries and breakpoints fire correctly.
- Live pixel-size readouts show the precise dimensions you are testing.
EVERY DEVICE, ONE TAP AWAY
- iPhone: SE, 17e, 17, 17 Pro, 17 Pro Max, iPhone Duo (closed and open).
- iPad: mini, iPad, Pro 11", Pro 13".
- Mac: MacBook Neo, Air 13", Air 15", Pro 14", Pro 16", iMac 24".
- Faux device chrome — notch, Dynamic Island and status bar — drawn in for realistic framing.
- Flip any device between portrait and landscape.
SIDE-BY-SIDE MULTI-VIEW
- On iPad, iPhone Duo or any iPhone in landscape, place phone, tablet and desktop next to each other.
- Every pane loads the same URL; configure each one independently.
- Focus or go fullscreen on any pane for a closer look.
PINCH, ZOOM, EXPLORE
- Crisp pinch-to-zoom, exactly like a real browser.
- Inspect the smallest details, then step back to see the whole layout.
PREVIEW YOUR LOCAL WORK
- Point ViewPortal at localhost or a LAN dev server (such as 192.168.x.x).
- Check work in progress and catch breakpoint bugs before you ship.
- Favourites and recents keep the sites you test most a tap away.
PRIVATE BY DESIGN
- No accounts. No analytics. No tracking.
- URLs, favourites and preferences stay on your device and are never transmitted.
A clean, monochrome, ink-on-paper interface keeps the focus on your work.
Responsive design testing, wherever you are.
Latest updates
1.2.0
Built for iPhone Duo, plus landscape and a light theme.
• IPHONE DUO: ViewPortal fits every pose. Closed, the controls tuck into a rail beside the camera so the preview gets the full height. Open, previews get big and multi-view sits side by side. Half-folded, previews stay clear of the hinge.
• TEST FOR IPHONE DUO: new Duo closed and Duo open presets. Closed recreates Safari's side column at the true 382px page width; open starts in landscape, just like unfolding.
• LANDSCAPE ON IPHONE: rotate any iPhone to see iPhone, iPad and Mac side by side in multi-view.
• LIGHT OR DARK: pick Light, Dark or match your system, in Dev tools.
• Fixed: tapping Go on the page you're already viewing now reloads it.
Still no accounts, no analytics, no tracking.
1.0.0
Store changes
What ViewPortal - Responsive Tester changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Description updated
New iPad screenshots
New screenshots
8 screenshots (was 5)