SketchMee vs TwinViewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SketchMee
Transform your photos into unique pencil sketches with this advanced app. It analyzes and redraws images from scratch, offering unparalleled art quality and a vast range of styles. Save your creations in high resolution and explore intricate details.
- Photo to sketch conversion
- Analyzes and redraws from scratch
- Vector curve based sketches
- Adjustable art styles
- 4K resolution saving
- High zoom detail inspection
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The photo-to-sketch app that stands out from the rest! SketchMee analyses, interprets and redraws your photo from scratch, instead of the simple edge filtering other apps do. New York Times sums it up: "This app turns your photos into pencil sketches of remarkable quality." Long time feature under "Staff Favorites / Impress Your Friends" in the US App Store. Just pick an image from your photo library, and watch it being sketched into a beautiful piece of art. Have endless fun playing around with settings, exploring a vast world of art possibilities. Extremely easy to use. A handful of simple but powerful controls make you the artist in charge, enabling a wide range of different sketch art styles. Unparalleled art quality. Not even desktop computer programs come close. Save your creations in 4K resolution. Zoom as deep as you like into the finished sketches to inspect the strokes. Your art will appear perfectly sharp at any zoom level. This is because sketches are built using vector curves, not from blocky pixel data.
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 dual-screen photo viewer application. You can view two different albums simultaneously, compare two photos side by side, pick a better shot, or leave one and delete another. This is more than just a viewer. You can also create side-by-side combined images, get the detailed EXIF data, etc. ----- HOW TO USE ----- - Swipe left/right to browse next/previous photo. - Pinch open/close with two fingers to zoom in/out. - Double tap either one to display in full-screen mode. - Sync/Async button to switch the sync mode between two viewers. - Swap button to switch two viewers. - Grid Lines button to show/hide grid liens. - EXIF Data button to show/hide data such as image size or shooting date. - Snapshot button to created and share side-by-side images. * Please note that this application can be downloaded for free, but in-app purchase is required to use all functions.
Screenshots
Verdict
The clearest difference is price: TwinViewer at Free against SketchMee's $4.99. TwinViewer also leads on update cadence (every 5 weeks vs every 4 months). SketchMee's advantage is in-app purchases (none vs 1) and rating (4.5 vs 4.0). On ads, device support and iOS requirement 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
TwinViewer is free to download; SketchMee costs $4.99 up front. TwinViewer sells 1 one-off in-app purchase. SketchMee asks for nothing beyond the download.
SketchMee holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: SketchMee has 142 ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 87% of SketchMee's written reviews are positive against 64% of TwinViewer's.
SketchMee ships an update every 4 months, TwinViewer every 5 weeks. Both last shipped on October 23, 2026.
| Parameter | SketchMee | TwinViewer |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.5 (142 ratings) — better | 4.0 (24 ratings) |
| Positive reviews | 87.4% of reviews — better | 64.0% of reviews |
| Number of ratings | 142 — better | 24 |
| Update frequency | Every 4 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Studio Mee | Masako Sakanashi |
Customer experience
SketchMee
TwinViewer
Bugs and requests
SketchMee
Reported bugs
4 issues- Pdf save not working
- Can't save sketches
- Crashes when selecting picture to sketch
- Rotates photos taken with native camera 90 degrees
Requested features
7 requests- Update it
- Increase contrast option
- Add blur tool
- Add better control over contrast
- Include camera capture that applies the effect settings right after the image is taken
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- Add color sketches
- Add different types of shading
TwinViewer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SketchMee
No in-app purchases
TwinViewer
- Full Version$4.99







