Palma Calculator
FreeA calculator with LCD digits and a paper roll that keeps every sum. Calm, quick, and in the colours of your Palma.
Try it
Your sums land here.
DEG
Type with the keys or your keyboard. Every result goes on the roll.
The roll. Every sum lands on a roll you can read back. Tap a result to keep going; share or clear it whenever you like.
Conversions and tips. Length, weight, volume, temperature, speed, area and currency (fixed rates, dated), and a tip split between people.
Scientific. Sin, cos, tan, log, powers and factorial: swipe sideways across the keys or turn the phone.
Three styles. House (your own Palma), Palm (a sand-coloured LCD on night blue) and Retro (a 1985 calculator with a receipt roll).
For your hand and your Fold. Equals on the side of your hand, the digits in a fixed order. Open: roll and calculator side by side; half open: a desk calculator.
Free and offline. No account, no ads. Your sums stay on your phone.
Privacy. Your sums and the roll stay on your phone. The exchange rates are built in; nothing is fetched. Only the update check goes online, plus what you choose to share: feedback, a photo on the Wall, the leaderboard, statistics if you turn them on. Read the privacy policy ›
Beta. Installing works like Palma: see install. Only the update check goes online, plus what you choose to share: feedback, a photo on the Wall, the leaderboard, statistics if you turn them on.
New in Palma Calculator
Release notes, in Dutch for now.
Palma Calculator 0.11
tandwiel voor de instellingen in plaats van drie puntjes, met de stip als er een update klaarstaat; instellingen scrollen weer door.
Palma Calculator 0.9
geschiedenis terughalen en bewerken, dagkoersen van de ECB (standaard uit), btw, fooi en korting in Calm, variabele x met grafiek in Nerd, eenheden met favorieten, woordsommen.
Palma Calculator 0.7
2000 willekeurige sommen nagerekend tegen BigDecimal; delen door nul altijd "Kan niet", NaN nooit gemaskeerd, ruis onder 1e-14 weg, heel kleine uitkomsten blijven; x² (houd ^ vast); "koersen van 10-2026" bij valuta (ook in de zoekbalk).
Palma Calculator 0.6
twaalf cijfers via BigDecimal (1 ÷ 3 × 3 = 1, e-notatie vanaf 1e12 en onder 1e-6), −2^2 = −4, (5+5)% werkt, lange uitkomsten krimpen. De zoekbalk van de launcher rekent hetzelfde.