TwinViewer vs MOVINdow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TwinViewer
View and compare two photo albums side-by-side. This app allows you to pick the best shots, delete unwanted ones, create combined images, and access detailed EXIF data. It offers intuitive gestures for navigation and zooming.
- Dual-screen photo viewing
- Side-by-side photo comparison
- Create combined images
- View EXIF data
- Zoom and swipe navigation
- Sync/Async viewer modes
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TwinViewer is a simple photo viewer that shows two albums side by side. View two albums at the same time, stacked or side by side, and compare photos to pick the best shot. It's also handy for tidying up your library: delete the photos you don't need or sort them into other albums. You can also create a single image with two photos side by side and check EXIF details. HOW TO USE • Swipe left or right: next or previous photo • Pinch: zoom in or out • Double-tap: full-screen view • Sync button: control the two viewers together (sync) or separately (async) • Swap button: swap the photos in the two viewers • Grid button: show or hide grid lines • EXIF button: show or hide details such as image size and date taken • Snapshot button: create and share an image of two photos side by side All features are free to use, with no restrictions.
MOVINdow
This app allows you to play, move, zoom, and fragment multiple videos simultaneously. Analyze sports techniques with advanced tools like 2D/3D rotation and frame-by-frame playback. Edit videos with trimming, cropping, and transparency features.
- Play up to 16 videos simultaneously
- Move, zoom, and fragment videos in real-time
- 2D, 3D, and 360° rotation
- Fragment with lines, shapes, or freehand
- Synced and solo playback controls
- Time-based video trimming and cropping
- Screen recording
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MOVINdow is a multiple video player that lets you move, zoom, and fragment videos in real time — all staying in sync. Play videos simultaneously with 2D, 3D, and 360° rotation. Fragment any video using lines, shapes, or freehand drawing. Built on patented technologies for sports video analysis. Multiple Video Player Features MODE: Normal ・Move video screens by dragging ・Zoom in and out by pinch gesture ・2D, 3D, and 360° rotation ・Switch audio by tapping screen ・Play videos simultaneously ・Multiple simultaneous fast forward / rewind ・Long-press player background to show videos only ・Synced & Solo playback controls (play/pause, seek bar, speed, frame-by-frame from 1/1000s) MODE: Fragment ・Fragment video with a straight line ・Fragment video with shapes (triangle, square, circle — freely resizable) ・Fragment video with freehand drawing ・Fragment Clipping(Keep original fragments) ・Move, zoom, and rotate each fragment freely, always in sync ・Repeat fragmentation(double-tap background to turn OFF) - Save your cut lines - Save the lines you use to fragment videos, and bring them back whenever you need them. Works with all five tools: Line, Rectangle, Circle, Triangle and Freehand Apply several lines at once Move, resize and rotate the frame to position each line before you fragment Name your lines to keep them organized - Save your scenes - Save how your videos are arranged and fragmented, then restore the whole setup later. Save a layout you like once, and getting back to it is just a tap away. - Share cut lines and scenes - Export your saved cut lines and scenes to a file and share them between MOVINdow apps. Whoever receives one just imports it into their own MOVINdow — a shared scene can even include the videos themselves, so they see the exact same fragmented layout. Note: imported videos are saved to your Photos app. Video Editing Features Tap the "|" button at the right of any video in the list to open its editing menu. ・Time-based video trimming (from 1/100s) ・Crop (square, triangle, circle — freely resizable / freehand cutout / face detection with auto-tracking) ・Transparent video creation (adjustable opacity) ・Video copy ・Sync video size to audio vibration and frequency ・Motion Trails ・Drag & drop video list editing, delete video groups and items Camera ・Resolution and frame rate (only values your device supports / 3 minutes max at 120fps and above) ・Lock exposure / white balance / focus (brightness and color stay put — what motion trail videos need) ・Stabilization on or off (off by default, for tripod work) ・Audio recording on or off ・Rule-of-thirds grid ・Tap to focus / pinch to zoom ・Switch cameras (front and back / pick from connected cameras / light) ・Saved to your photo library and added to the in-app video group Audio Settings ・Play audio from the tapped video ・Play audio from all videos ・Lock audio to the last played video Additional Features ・Screen recording (capture entire player screen as video) ・Rounded video corners ・Change player background color and background image ・Change pen drawing color ・Long-press player background to hide all views except videos ・Share on social media and more No need to login. No ads, all features are free to use now! Elevate your game to the next level with our multiple video analysis app! A transformative tool for athletes and coaches looking to enhance techniques and strategies across various sports. Below are the use cases for each sport. Golf Swing Analysis: Analyze backswing, downswing, and follow-through holistically Putting: Check putter angle, speed, and ball trajectory Fragment Analysis: Fragment the swing to compare grip, hip rotation, and club head path Motorsports Line Choice Analysis: Analyze curves and straights from multiple angles Pit Stop: Validate pit efficiency with micro-adjustments to 1/1000 second Fragment Analysis: Fragment cornering to compare steering *Patent number US:10275133 Japan:6754968, 7734894 China:ZL201680005776X
Screenshots
Verdict
The clearest difference is in-app purchases: MOVINdow at none against TwinViewer's 4. MOVINdow also leads on iOS requirement (17.6 vs 26.0). TwinViewer's advantage is ratings volume (24 vs 2) and review sentiment (63% vs 50%). On price, rating, update cadence and ads 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
Both are free to download. TwinViewer sells 4 one-off in-app purchases. MOVINdow asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.0 for TwinViewer against 4.0 for MOVINdow. That said, the two scores are not equally well evidenced: TwinViewer has 24 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 63% of TwinViewer's written reviews are positive against 50% of MOVINdow's.
TwinViewer ships an update every 2 months, MOVINdow monthly. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.
| Parameter | TwinViewer | MOVINdow |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (24 ratings) | 4.0 (2 ratings) |
| Positive reviews | 63.4% of reviews — better | 50.0% of reviews |
| Number of ratings | 24 — better | 2 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 6 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Masako Sakanashi | ATL Global Solution LLC |
Customer experience
TwinViewer
MOVINdow
In-app purchases
TwinViewer
- Full VersionFree
- Buy Me a Coffee$3.00
- Buy Me Lunch$5.00
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- Big Thank-You$10.00
MOVINdow
No in-app purchases
Questions
Is TwinViewer free?
Is MOVINdow free?
Which has better reviews, TwinViewer or MOVINdow?
Do TwinViewer or MOVINdow have ads?
Which is updated more often, TwinViewer or MOVINdow?
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