Capption vs. ReBokeh
ReBokeh is a visual experience inclusion app — a customizable live video filter that helps low-vision users enhance what they see in real time. We took it into a real museum with real low-vision testers and came away with a clear picture of what it does, what it doesn't, and where Capption fits.
At a glance
Accessible exhibit information
Capption
Capption delivers exhibit content in multiple formats to multiple visitor groups — any phone-using visitor, regardless of vision, language, mobility, or device. One NFC tap surfaces accessible, screen-reader-ready, translatable content. No account, no subscription, no setup required.
Visual magnification app
ReBokeh
ReBokeh is a digital magnifying glass for iOS — a customizable live video filter that helps low-vision users see better in real time. It enhances what visitors can already see. It is iOS-only, requires registration, and offers free and subscription tiers with geofenced institutional access.
Zooming in on a problem
Ever notice that each successive smartphone you buy seems to get heavier? Cameras have made four major leaps in only about ten years:
Croppy quality (2000s–mid 2010s)
Phones had a single fixed wide-angle lens. "Zooming in" meant cropping and stretching — no wonder those images looked like trash.
Multiple lenses (mid 2010s)
Apple's iPhone 7 Plus added a dedicated 2× telephoto lens, letting photographers retain fine detail when switching to optical zoom.
Periscope depth (late 2010s)
The folded lens bent incoming light 90 degrees, running horizontally across the phone body — enabling true 5–10× zoom in the Samsung Galaxy S20 Ultra and iPhone 15 Pro Max.
Computational zoom (present)
AI combined with 200-megapixel sensors synthesizes zoom once more — filling in missing details and merging frames to achieve 50× and beyond without hardware tradeoffs.
All this increased capability also enabled increased accessibility for people with visual impairments. Rebecca Rosenberg recognized this — as someone living with oculocutaneous albinism, she built the tool she wished she'd had.
ReBokeh: enhancing existing vision
As we've repeatedly emphasized, visual disability isn't binary — blind vs. sighted. 90% of visually-impaired people retain some level of functional sight. For most, assistance means enhancement, not replacement.
ReBokeh acts as a digital magnifying glass. Technically, it's a customizable live video filter. Users enhance their visual capability in real time by adjusting environmental and visual factors: inverting colors, improving contrast, changing exposure, freezing images, and stabilizing zoomed frames.
Like Capption, ReBokeh is discrete and portable and does not require institutions to make special accommodations for every visually-impaired person every time they show up. That's a meaningful design principle — one we share.
The ReBokeh museum trial
Capption staff and our low-vision friends tested ReBokeh on a real museum visit. Here's what we found.
In theory
- Open the ReBokeh app
- ReBokeh grabs camera access and applies its improvements
- Adjust the live image to suit you
In reality
- Open the Apple App Store (iOS only — no Android version)
- Search "ReBokeh"
- Download the app
- Register an account
- Choose between paid (subscription) and free tiers
- If physically present at a partner site, the geofence may unlock premium features
- If purchasing, navigate standard iOS transaction and security prompts
Once through the typical app acquisition steps — in our group's case, this happened standing in the museum lobby — testers were genuinely rewarded. They took an immediate liking to:
- Running the flashlight alongside the camera
- Sliding anywhere on screen to zoom in
- Freezing the frame
- Saving their adjustment presets for next time
For a typical museum visit, our test group felt the free version sufficed. Saving altered images to the camera roll requires the paid version — something frequent ReBokeh users would find worthwhile.
First-use challenges
01
Slow activation
Testers unanimously said ReBokeh requires learning and configuring it ahead of time. Using it for the first time on the fly, in the museum, was undignified.
02
Requires some acuity
Users' vision has to be better than bad just to set ReBokeh up. Buttons spread across the screen presented a hard tap target for testers with limited visual fields.
03
Navigation and mobility burden
Reading through ReBokeh requires a direct line of sight in a narrow field when zoomed. Other visitors easily interrupted this, throwing testers off target and requiring them to re-index.
04
Prompt annoyance
"If that doesn't end soon I'd delete it," said one tester, reacting to ReBokeh's habit of prompting users — newsletter suggestions, notification requests — before they can use it.
05
Technologically intrusive
ReBokeh's appetite for permissions bothered our most technical tester. An assistive technology wants an account, notification access, and your precise location. "Why?"
06
Low-light barrier
ReBokeh's performance drops noticeably when light dips below some unmeasured threshold — an inherent physical limitation with no workaround.
07
Stabilization fatigue
Holding a phone steady enough for handheld stabilization causes fatigue during prolonged reading — a real issue for older or mobility-challenged visitors.
Would they use ReBokeh again?
After our trial, we asked our low-vision testers for their unvarnished take on future use:
- Two testers were shut out — Android phones. No access at all.
- One tester couldn't use it — she is fully blind; ReBokeh serves a different need.
- Two testers might use it — both habitually carry magnifying glasses, which serve a similar purpose at lower friction.
- One tester will keep it installed — ReBokeh is "hard better" than the magnifying app he already had, and he'll use it situationally.
Our after-action verdict
Our testers found ReBokeh a great use of mobile technology as an assistive device. But ReBokeh diminishes its own core utility in its attempts to be feature-rich and enforce its business model. The Android wall alone cuts off a significant share of the visitors who need it most.
What Capption gives guests that ReBokeh doesn't
Capption and ReBokeh compare in only two ways: they both help museum visitors with low or impaired vision, and users access that assistance using their smartphone. Everything else is different.
Learn in any language
Capption translates content into 136 languages. Translations can be machine-generated, human-edited, or fully human-authored.
Accessibility with any mobile device
Any Android device with NFC (nearly all modern models) and any iPhone since 2016 works with Capption. ReBokeh is iOS only.
Zero searching
Searching, filtering, focusing a camera — all indignities when you're trying to enjoy a museum. One tap activates the specific Capption you requested from any other open app.
Inherited adaptation
Capption makes content accessible quickly by leveraging a user's pre-existing, tailored accessibility settings — font size, contrast, screen reader, all of it.
Screen reader support
Many low-vision visitors require text-to-speech, which isn't easy or fast with a shaky camera. We put painstaking effort into getting screen reader support right.
Multimedia content
Institutions can embed images, audio, and video. Revisions take minimal effort and roll out automatically — no reprints, no reprinting QR codes.
Convenience, not annoyance
Capption doesn't have a single in-app pop-up. No newsletter prompts, no notification requests, no permission nags before you can use it.
No location tracking or transactions
Curious visitors learn without snooping or commercial interference. No geofencing, no subscription prompts, no location permissions required.
Full experiential control
Rather than reading labels through a phone with a direct line of sight, Capption lets visitors carry content to a place of comfort — a bench, a quieter corner, home.
Exhibit history
Live camera content disappears when you walk away. One tap gives Capption content to a visitor permanently — they can revisit any exhibit they tapped, anytime.
They work together
One tester quickly found that she could examine an exhibit with ReBokeh and learn about it with Capption — physically without blocking anyone. Importantly, she wouldn't feel like she was making her disability someone else's problem. In practice, each app complements the other.
Pricing
ReBokeh's institutional pricing isn't public. What we can speak to is its mechanism: ReBokeh uses geofencing to unlock premium features for users who enter a participating institution's boundary. This makes for an awkward usability challenge — visitors downloading and configuring ReBokeh on site are suddenly hit with permissions prompts. "Why does a magnifying glass app want my location?"
Capption's pricing starts remarkably small and increases based on institution visitor volume. No geofencing. No permission theater.
Capption vs. ReBokeh
Try as we might, there's not much to compare between Capption and ReBokeh. If you're an exhibitor considering one versus the other, there's only one axis of comparison: reach.
ReBokeh
Do you want to help iPhone-equipped, low-vision visitors see better?
Capption
Do you want to help any phone-using low-vision, non-native-speaking, socially-anxious, mobility-impaired, or senior visitor — without software access hurdles?
If option two appeals more, connect with us.
Ready to make your exhibits truly accessible?
Magnifiers will undoubtedly help some visitors — but not all. Capption makes life easier for everyone, and measurably better for many. A dignified, effective, and easy-to-implement solution that empowers your visitors to explore their curiosity without stress or impediment.