Dyop® Vision Test vs Co
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dyop® Vision Test
This app allows you to test your vision quickly and accurately using your iPhone as a controller. It offers a more precise and efficient alternative to traditional eye tests, suitable for various users.
- iPhone controller functionality
- Under 60-second vision test
- Precise and consistent results
- Minimizes fixation fatigue
- No patient literacy required
- 30-day free trial
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The Dyop Home Eye Test > Use your iPhone as the Dyop Controller > Test your vision in under 60 seconds The Dyop for Doctors A Dyop® acuity test is: > More precise, consistent, and efficient > Avoids overminusing and memorization > Minimizes fixation and decision fatigue > Does not require patient literacy > Use your iPhone companion App as the Dyop Controller The Dyop Vision Test comes with a 30 day free trial. After this period you may purchase an auto-renewing subscription through an In-App Purchase. (If you do not maintain a subscription you can only use the App for thirty days and then it will expire) • Auto-renewable subscription • 1 month ($0.99) • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. www.chart2020.com/dyop-privacy www.chart2020.com/dyop-terms-of-use
Co
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Master life-saving tactical casualty care skills when and where you need them most. Co-Responder provides comprehensive combat medic and emergency medical training for military and first responders worldwide, with full offline capability for field and austere environments.
Screenshots
Verdict
The clearest difference is in-app purchases: Co at none against Dyop® Vision Test's 1. Co also leads on update cadence (every 3 months vs every 7 months). Dyop® Vision Test's advantage is iOS requirement (10.0 vs 18.0). 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. Dyop® Vision Test sells 1 in-app purchase, starting at $0.99 per month. Co asks for nothing beyond the download.
Dyop® Vision Test ships an update every 7 months, Co every 3 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.
| Parameter | Dyop® Vision Test | Co |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 7 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 10.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 16 MB | 30 MB |
| Age rating | 4+ | 17+ |
| Developer | Shemesh Health Solutions PTY Ltd | Allogy Interactive |
In-app purchases
Dyop® Vision Test
- Monthly subscriptipn1 Month trial$0.991 Month
Co
No in-app purchases
Questions
Is Dyop® Vision Test free?
Is Co free?
Do Dyop® Vision Test or Co have ads?
Which is updated more often, Dyop® Vision Test or Co?
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