Oculi vs Snellen test
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oculi
This application allows users to control desktop visual acuity software remotely. It enables the isolation of letters and rows, display of color blindness slides, and performance of low vision exams from a mobile device.
- Remote control of desktop software
- Bluetooth and Wi-Fi connectivity
- Isolate letters and rows
- Display color blindness slides
- Perform low vision exams
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ForeSight Oculi is the most advanced Visual Acuity Software to date. Using this app you will be able to control our desktop software (visit http://foresighteyes.com) via Bluetooth or Wi-Fi. Isolate letters, rows, show color blindness slides and perform low vision exams all from your iOS powered device. (Image source: hotpot.ai)
Snellen test
This app uses augmented reality to display a Snellen eye chart for visual acuity testing. It allows users to adjust the chart's size and position from a distance, simulating a professional eye exam. Ideal for quick vision checks at home.
- Augmented reality Snellen chart
- Adjustable chart size and position
- Remote control via device camera
- Distance simulation for testing
- Customizable display options
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The Snellen chart is a widely used tool for measuring visual acuity. Named after the Dutch ophthalmologist Herman Snellen, who created it in 1862, this chart helps assess eyesight. To get started, choose a vertical surface to display the chart, stand 6 meters away, and aim your device’s rear camera at the surface. Once the chart loads, you can adjust its position and size via the control panel or directly on the screen using drag-and-drop, rotate with two fingers, or zoom in/out gestures. Need to switch surfaces? Just tap the button with the two circular arrows. You can also mute the sound or hide help texts using the appropriate buttons.
Screenshots
Verdict
The clearest difference is price: Snellen test at $0.99 against Oculi's $1.99. On review sentiment, update cadence, ads and in-app purchases 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
Oculi costs $1.99 and Snellen test $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Oculi ships an update every 6 months, Snellen test every 4 months. The most recent releases landed on September 2, 2026 and September 9, 2026 respectively.
| Parameter | Oculi | Snellen test |
|---|---|---|
| Price | $1.99 | $0.99 — better |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 13.2 |
| Further details — not scored | ||
| Size | 36 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | The Buster Booth Company | Oleg Drobyshev |
Customer experience
Oculi
Snellen test
In-app purchases
Oculi
No in-app purchases
Snellen test
No in-app purchases
Questions
Is Oculi free?
Is Snellen test free?
Do Oculi or Snellen test have ads?
Which is updated more often, Oculi or Snellen test?
Other comparisons
