DeepSi vs ACamViewfinder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DeepSi
This utility app uses advanced iPhone sensors to capture photos and videos in low-light conditions. It transforms depth data into visually interesting media, offering dynamic color options and front/rear camera support. All captured content is saved directly to your device's photo library.
- Low-light photo and video capture
- Utilizes Lidar and TrueDepth sensors
- Depth data visualization
- Dynamic color effects
- Front and rear camera switching
- Offline functionality
- Saves to photo library
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DeepSi is a camera that captures depth instead of light. It turns the depth data from your iPhone or iPad's depth hardware into colorful photos and videos that show the shape of whatever is in front of your device, even in complete darkness. DeepSi works with: - the LiDAR Scanner on the back of LiDAR-equipped iPhone and iPad models - the front TrueDepth camera on Face ID devices - dual rear cameras, at lower quality (dual cameras compare two regular images, so they need some light and can't see in complete darkness) How it works: - Tap the shutter button to take a depth photo. - Press and hold the shutter button to record a depth video. - Swipe left or right to switch between 12 color themes. Your theme is remembered between launches. - The colors follow your system Light or Dark Mode setting. - Switch between the front and rear depth cameras with one tap. - Everything is saved to a DeepSi album in your Photos library. It also works as a simple "night vision" viewfinder. DeepSi also works with Shortcuts and Siri: - Make Video from Frames turns a set of images into an mp4 (choose 1-120 fps, optionally add an audio track) using DeepSi's own video pipeline. - Get Latest Captures hands your most recent DeepSi photos and videos to other Shortcuts actions as files. - Read or change the depth Color Theme from Shortcuts - all 12 themes, and a live capture session recolors immediately. - "Get my latest DeepSi capture" is available from Spotlight and Siri with no setup. No accounts, no tracking and no third-party libraries. DeepSi makes no network calls of its own and works completely offline. Acknowledgments: App Icon Octopus Shape - Image by Freepik
ACamViewfinder
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ACam Viewfinder is a professional camera-department toolkit for filmmakers who work with diopters, Super 35, Full Frame, and ALEXA formats. Download free. Use Quick Diopter, Diopter Result, Depth of Field, and Hyperfocal on set immediately. Unlock ACam Pro once when you need the prep suite. No subscription. No account. Works in airplane mode. Free tools Quick Diopter is the on-set close focus tool. Enter marked focus and target distance to get ideal diopter power, the nearest standard glass (+1/8, +1/4, +1/2, +1, +2, +3), a comparison table of resulting focus distances, and a BEST FIT highlight for the strength to pull from the kit. Results update as you type or tap +/-. Meters or feet. Diopter Result is for kit check. Enter marked focus and a known diopter strength to see the resulting subject distance. Depth of Field shows near, far, and total DOF for a focus mark using the format circle of confusion, plus how much sits in front of the mark and how much sits behind. Built for focus pulls and stop decisions. Hyperfocal gives hyperfocal distance and near limit for near-to-infinity coverage. ACam Pro (lifetime unlock) One non-consumable purchase. Restore on any iPhone or iPad. Precision Mode is offset-aware diopter planning with DOF context. Formats include Super 35, ARRI ALEXA 35 Open Gate, Full Frame, and Large Format / VistaVision. Enter focal length, aperture, marked focus, target distance, and sensor-to-diopter-plane offset in mm. See near and far depth-of-field tolerance. Load a saved lens package to fill the fields. Split Focus returns the focus mark and stop that hold two subject distances. Viewfinder and Split is composition planning: horizontal and vertical FOV, frame width and height at subject distance, and a place-and-rotate split-diopter line for staging notes. This is a planning overlay only, not an optical aberration simulator. Focal Match keeps the same angle of view when you move a lens between formats — horizontal, vertical, or diagonal. Saved Lens Packages store format, focal length, diopter-plane offset, and aperture on the device. Create, edit, delete, and load them into Precision Mode. No cloud. Custom camera formats with your own circle of confusion are included with Pro. Designed for set Offline optics math. No account, no ads, no analytics SDK. Dark cinema-kit UI. Guide on first launch and on every tool. Glove-friendly +/- steppers. Treat offset-aware results as prep estimates until you verify on the glass. Who it is for Focus pullers, 1st ACs, DPs, operators, rental houses, and lens techs. What you pay for Free is Quick Diopter, Diopter Result, Depth of Field, and Hyperfocal. ACam Pro is the prep suite as one lifetime unlock. ACam Viewfinder answers hard focus and framing questions quickly so you can move on with the shot.
Screenshots
Verdict
The clearest difference is update cadence: ACamViewfinder at every 3 weeks against DeepSi's every 2 months. ACamViewfinder also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
DeepSi ships an update every 2 months, ACamViewfinder every 3 weeks. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.
| Parameter | DeepSi | ACamViewfinder |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 3 MB |
| Age rating | +4 | 4+ |
| Developer | Blaine Miller | Sanjay Korde |
In-app purchases
DeepSi
No in-app purchases
ACamViewfinder
No in-app purchases








