Frog vs Open PVT

With Frog app you can: - Check your remaining Data, Minutes, SMS & Balance in order to have the full control of your account. - Easily top up your balance. - Access exclusive app Offers and online top up bonuses. - Browse the Frog unique bundles and activate them in seconds. - Easy access to all Packages and "Pay as You Go" tariffs for International & National calls. - Set your Favorite Destinations in order to easily browse packages for the countries you communicate the most! - Immediately check which of your contacts are using Frog.

Open PVT is a psychomotor vigilance and reaction-time testing application. The app provides configurable 3-minute, 5-minute, and 10-minute test sessions in which users respond as quickly as possible when a visual stimulus appears. Open PVT records trial-level and session-level measurements including reaction times, lapses, false starts, timeouts, session timing, and summary statistics. Features include: • 3-minute PVT-B testing • 5-minute modified PVT testing • 10-minute standard PVT testing • Reaction-time feedback • Lapse, false-start, and timeout tracking • Session history • Trial-level data review • CSV export for data analysis • Local on-device data storage • No advertising • No automatic cloud upload Test data remain stored locally on the device unless the user explicitly exports or shares them. Open PVT may be used for educational, analytical, or research-related purposes, but the app itself does not enroll users in studies or provide clinical services. Open PVT is not intended to diagnose, treat, cure, prevent, or provide medical advice regarding any disease or medical condition.