About this app

Span helps you practise remembering the number sequences that matter in everyday life. Start with a short measure in the same order and in reverse order, then train with a focused daily session built from three exercises: • recall digits in the same or reverse order • hold a sequence in mind while counting backwards • remember a six-digit verification code through a short distraction Your records stay personal. Span shows your own measurements and progress over time without rankings, percentiles, or medical claims. Training data stays on your device, and no account is required. FREE ACCESS • Initial number-recall measure • First daily session of the day • Personal records • Grouping lesson SPAN PREMIUM • Additional daily sessions • Free practice in same-order, reverse-order, and verification-code modes Span Premium is available as an annual or weekly auto-renewable subscription. Prices, billing periods, and any introductory offer are shown by the App Store before purchase and may vary by country. You can manage or cancel your subscription from your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.michaeldardol.com/span/privacy/

Audience growth

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US rating-count history

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Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

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