StereoCards vs MPO Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StereoCards
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StereoCards ist das Schweizer Taschenmesser der Stereoskopie: Aufnehmen, Anzeigen und Konvertieren – alles in einer App. Wer keine 3D-Ausrüstung dabei hat, bekommt mit StereoCards das Nächstbeste. Tauche ein in die Welt der 3D-Bildbearbeitung und erstelle, betrachte und konvertiere stereoskopische Bilder direkt vom Handy. *Hauptfunktionen: - Galerie- und Dateizugriff: Zeige stereoskopische 3D-Bilder aus deiner Galerie oder deinen Dateien und konvertiere sie in verschiedene stereoskopische Formate. - ZIP-Unterstützung: Öffne ZIP-Archive direkt in der App – die enthaltenen Stereobilder werden automatisch erkannt und angezeigt. - Konvertierung von Galeriefotos: Wandle ganz normale Fotos aus deiner Galerie mit KI in 3D-Stereobilder um – kein spezielles Equipment nötig. - Darstellungsformate: Konvertiere und betrachte deine Stereobilder in verschiedenen Formaten: -- Side-by-Side: parallel oder cross-eyed -- Anaglyphen: Red/Cyan, Color, Dubois und SPM - Unterstützung von .mpo Dateien: Betrachte .mpo Dateien von 3D-Kameras direkt in der App, ohne zusätzliche Konvertierung. - Filme anzeigen: Spiele stereoskopische Videos direkt in der App ab und erlebe bewegte 3D-Inhalte. - VR-Bilder und Panoramen: Erlebe deine 3D-Bilder in Virtual Reality – vollständig offline. Panoramafotos vom Handy, egal ob klassisch 360° oder einfach breite Weitwinkelaufnahmen, werden als immersives VR-Erlebnis dargestellt. - Slideshow-Modus: Erstelle beeindruckende Slideshows deiner 3D-Stereobilder und genieße ein immersives Erlebnis. - 3D-Bilder erstellen: -- ChaCha-Methode: Erstelle stereoskopische 3D-Bilder, indem du zuerst ein Bild und dann ein weiteres aus leicht versetztem Blickwinkel aufnimmst. -- Künstliche Intelligenz (offline): Erstelle 3D-Stereobilder aus einem einzigen Schnappschuss – vollständig auf deinem Gerät, ohne Internetverbindung. Die KI-Engine läuft lokal und berechnet das zweite Bild automatisch. Deine Fotos verlassen dabei niemals dein Gerät. - Speichern: Erstellte 3D-Bilder werden als Side-by-Side gespeichert. Optional können die Einzelbilder in deiner Galerie gespeichert werden. * Datenschutz und Sicherheit: - Keine Datensammlung: StereoCards sammelt keine Daten über dich oder deine Nutzung der App. Deine Privatsphäre steht an erster Stelle. - Keine Registrierung erforderlich: Einfach herunterladen und loslegen. - Keine Datenweitergabe: Deine Informationen bleiben immer bei dir. * Warum StereoCards? -- Vielseitig: Aufnehmen, Anzeigen, Konvertieren – alles in einer App. Das Schweizer Taschenmesser der Stereoskopie. -- Kein Spezialequipment nötig: Ersetzt keine professionelle 3D-Ausrüstung, kommt ihr aber erstaunlich nah – immer dabei, immer einsatzbereit. -- Leistungsstark & offline: KI-Verarbeitung direkt auf deinem Gerät – keine Cloud, keine Wartezeiten. -- Datensicher: Kein Datenabgreifen, keine Registrierung, keine Sorgen.
MPO Viewer
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MPO Viewer opens your stereoscopic 3D photos and video straight from the camera. No conversion, no computer. A dual-lens camera such as the Fujifilm FinePix REAL 3D W1 or W3 saves each photo as an .mpo file holding both eyes, and MPO Viewer shows that pair in six 3D modes and plays the stereo video those cameras shoot. VIEWING Point it at a folder of .mpo photos or .avi clips, on your device or in iCloud Drive, and browse a searchable grid or table. Open any photo in the mode that suits you: • Side by Side: the classic pair, for free-viewing or a stereo viewer • Crossed Eye: the same pair swapped, for cross-eyed viewing • Cardboard (experimental): the pair bent beforehand so the lenses of a cheap VR viewer straighten it out again, set to your own viewer • Anaglyph: both eyes merged for coloured glasses (Red/Cyan, Magenta/Green, Amber/Blue or Red/Blue), with eye swapping and ghost reduction • Wiggle: the two eyes flicker back and forth, on a timer or as you tilt the phone • Depth (experimental): a depth map built from the pair, warped as you tilt Stereo clips play with sound in Side by Side, Crossed Eye, Cardboard and Anaglyph. Whichever mode you pick, the pair is corrected first: the eyes are brought into line vertically and the nearest thing placed at the screen plane, which is what keeps the depth comfortable. Hide a photo or clip and the Hidden list brings it back, behind Face ID if you want. An info button shows what the camera recorded, down to lens, aperture, shutter and ISO, with a map when there is a location. WATCHING TOGETHER A few red/cyan glasses and a television make a stereo evening for the whole room. Mirror to an Apple TV or AirPlay television, or plug in HDMI: the picture moves to the big screen and the phone becomes the remote. Swipe, run a slideshow, play a clip with sound. Set the depth once per television and every photo is placed for that screen from then on. STEREO CARDS AND READY MADE PAIRS Old stereo cards become MPOs too, from any mount or an archive scan. Convert a photo of a card and the two prints are found by their edges, straightened and registered on each other, with the colour cast of the lamp taken out. Every card then carries three buttons of its own: turn it over, put the light back, or save it without colour. Or photograph one in the app, inside the frame it draws. A converted card can be coloured by a machine learning model on the device. The card itself is never touched. A picture that already holds the pair side by side goes in the same way. The app works out which of the two it has, finds the two panels and writes the MPO. Each row says what it decided; one button overrules it either way, another swaps the eyes, and one more cuts a picture down the middle on your word. FRAMES, SLIDESHOWS AND PLAYLISTS Frame photos and clips with a plain border in a colour of your choosing, or one of six passepartouts, from a stereo card to a cardboard peep box. Caption any photo; the caption takes a colour of its own. Run a slideshow through a folder, or save a selection as a playlist: the library then shows just that list, in your order, from the start or shuffled. SHARE AND EXPORT Side by Side, Crossed Eye and Anaglyph export as PNG or JPEG, Wiggle as an animated GIF or a cross-faded video, Depth as an MP4 tilt-sweep. Cardboard exports the plain pair. A clip exports as MP4 at three sizes, with or without its sound. Exports carry a watermark; MPO Viewer Pro removes it. ACCESSIBILITY Works with VoiceOver, the largest text sizes and Reduce Motion, where Wiggle and Depth follow your tilt instead of moving by themselves. Both work with one eye. PRIVACY Your photos never leave your device. No accounts, no analytics, no data collection. The one thing the app ever fetches is a larger colour model, only when you ask. In English and Dutch, for anyone rediscovering a box of old stereo photos and anyone still shooting 3D.
Screenshots
Verdict
The clearest difference is in-app purchases: StereoCards at none against MPO Viewer's 1. StereoCards also leads on iOS requirement (15.1 vs 26.0). MPO Viewer's advantage is update cadence (every 3 days vs every 11 months). On price, ads 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
Both are free to download. MPO Viewer sells 1 one-off in-app purchase. StereoCards asks for nothing beyond the download.
StereoCards ships an update every 11 months, MPO Viewer every 3 days. The most recent releases landed on October 19, 2026 and October 6, 2026 respectively.
| Parameter | StereoCards | MPO Viewer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 355 MB | 64 MB |
| Age rating | 9+ | 4+ |
| Developer | Denk Manufaktur für IT-Lösungen KG | G.G. van der Steen |
In-app purchases
StereoCards
No in-app purchases
MPO Viewer
- MPO Viewer Pro$4.99








