Worked very well, but now crashes
However, now it crashes on launch and cannot be used anymore

This app provides a digital eye chart with various testing options, including different chart types and masking features. It offers remote control capabilities via a companion iPhone app or an optional Bluetooth remote, making it suitable for professional and home use.
2.4.8
February 6, 2026
bug fixes
1 month access the Chart2020 Lite
Chart2020 Lite offers Sloan/Snellen Charts, Balancing Charts, and Astigmatism Charts. It also supports letters, numbers, kids' charts, E, C, and HOTV symbols, along with 6 global fonts.
Yes, you can control Chart2020 Lite directly on the iPad. Additionally, a companion iPhone app allows you to see displayed letters and control every feature without turning your neck.
Chart2020 Lite offers auto-renewable subscriptions for 1 month at $29.99 or 1 year at $199.99. Subscriptions are charged to your iTunes account and automatically renew unless turned off 24 hours before the current period ends.
Chart2020 Lite provides a 30-day free trial. After this period, a subscription is required to continue using the app beyond the initial 30 days.
Chart2020 Lite is designed to work on iPads. It is not currently available for other devices like iPhones or Android tablets.
The latest version of Chart2020 Lite is 2.4.8, last updated on February 6, 2026. This indicates a relatively recent update, suggesting ongoing support and development.
Chart2020 Lite has an age rating of 4+. This means it is considered appropriate for children aged 4 and older.
No, Chart2020 Lite does not contain advertisements. The app is ad-free, focusing on providing a clean user experience for its medical testing features.