Hyper Stereo Helper vs MPO Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hyper Stereo Helper
This app assists in creating stereo images of distant subjects by calculating the ideal stereo base. It guides camera placement and pointing, offering features like favorite places storage and synchronization across devices.
- Calculates optimal stereo base
- Determines camera placement and pointing
- Favorite places list with iCloud sync
- Shows parallel and convergent pointing directions
- Helps center frames with perpendicular line
- Adjustable distance to basis ratio (Angle)
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Make Beautiful stereo pictures of the distant objects with Hyper Stereo Helper! It helps calculate optimal stereo base and determine points where to put cameras and points to point them to. List of Favorite places allows you to remember geographical coordinates and shooting options. List of Favorite places stored in iCloud and quickly synchronizes through all of your devices so it will be identical on all of them. It shows directions for parallel and convergent pointing of cameras. It shows large perpendicular to view direction line that helps center frames. You can choose optimal for you work distance to basis ratio which shows as Angle. Usually optimal values are from 1/30 to 1/50 or from 1 to 2 degree. It uses feets or meters to display distances. It can use cached maps but usually needs internet connection.
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: Hyper Stereo Helper at none against MPO Viewer's 1. Hyper Stereo Helper also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.0). MPO Viewer's advantage is update cadence (every 3 days vs every 23 months). On price 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. MPO Viewer sells 1 one-off in-app purchase. Hyper Stereo Helper asks for nothing beyond the download.
Hyper Stereo Helper ships an update every 23 months, MPO Viewer every 3 days. Both last shipped on October 6, 2026.
| Parameter | Hyper Stereo Helper | MPO Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 23 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 1 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Yury Golubinsky | G.G. van der Steen |
In-app purchases
Hyper Stereo Helper
No in-app purchases
MPO Viewer
- MPO Viewer Pro$4.99
Questions
Is Hyper Stereo Helper free?
Is MPO Viewer free?
Do Hyper Stereo Helper or MPO Viewer have ads?
Which is updated more often, Hyper Stereo Helper or MPO Viewer?
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