MB-88F Fractional Calculator
Utilitaires
Gratuit · Achats intégrés · Conçue pour iPad. Non validée pour macOS.
MB 88F is a calculator that thinks in exact fractions.
Every value is kept as a whole-number numerator over a whole-number denominator, so the math never drifts. 1/3 + 1/6 is exactly 1/2, never 0.4999. Whether you're cutting a board, scaling a recipe, piecing a quilt, or checking fraction homework, the answer stays exact — and inches and millimeters relate by the exact definition 1 in = 25.4 mm, so conversions never lose a thousandth.
NEW TO RPN?
MB 88F uses Reverse Polish Notation: you key the numbers first, then the operation — 3, ENTER, 4, + instead of 3 + 4 =. No equals key, no parentheses to juggle. It's the input style engineers and HP-calculator fans have sworn by for decades because it makes real calculations flow. If it's new to you, it clicks in about a minute, and a built-in manual, key index, and cheat sheet are right there to walk you through it.
WHAT IT DOES
• Exact fraction arithmetic — add, subtract, multiply, divide, always reduced to lowest terms
• Mixed-number entry: key 2 SPC 1 b/c 2 for 2 1/2
• Tape-measure rounding to 1/8, 1/16, 1/32, or 1/64 — and TRU to restore the exact value
• Fraction ↔ decimal conversion both ways
• Exact unit tagging and conversion: inches, feet, millimeters, meters
• Feet read as feet plus fractional inches (22.5 ft → 22 ft 6 in)
POWER KEYS
• 1/x, x², and √x for diagonals and right-triangle math
• ½x to instantly find a centerline, 2x to double it
• Store/recall memory (STO/RCL) to hold and reuse a value
• History tape — tap the display to see your last 100 results and pull any of them back into the stack
• Last-X recall, stack roll, and swap
MADE TO LIVE WHERE YOU WORK
• Universal — one app, built for both iPhone and iPad
• Your stack, memory, and history are saved between sessions — pick up right where you left off
• 11 color themes
• Optional thousands separator and fixed decimal places
• Built-in user manual, key index, and cheat sheet
• Works 100% offline. No account, no ads, no tracking, no data collected — ever.
Try it free for 2 days, then unlock the full app forever with a single one-time purchase — no subscription.
Woodworkers, machinists, carpenters, and framers rely on it — and so do quilters and sewists, cooks scaling recipes, students working through fraction homework, and anyone who'd simply rather see 3/4 than 0.75. If you think in fractions, MB 88F keeps them exact.
Notes et avis
- Cette app n’a pas reçu suffisamment de notes ou d’avis pour en proposer un aperçu.
• iPad support — MB 88F is now a universal app with a layout built for the big screen
• History tape: tap the display to see your last 100 results, and tap any line to pull it right back into the stack
• Your work now survives relaunch — the stack, memory register, and history are saved automatically
• Tap a value's active unit key to remove the tag and go back to a plain number
• Reliability improvements under the hood
Le développeur Maxwell Bayman a indiqué que les pratiques de l’app en matière de confidentialité peuvent inclure le traitement des données tel que décrit ci‑dessous. Pour en savoir plus, consultez la politique de confidentialité du développeur .
Données non collectées
Le développeur ne collecte aucune donnée avec cette app.
Accessibilité
Le développeur n’a pas encore indiqué quelles fonctionnalités d’accessibilité sont prises en charge par cette app. En savoir plus
Informations
- Fournisseur
- Maxwell Bayman
- Taille
- 973,8 Ko
- Catégorie
- Utilitaires
- Compatibilité
Nécessite iOS 16.0 ou version ultérieure.
- iPhone
Nécessite iOS 16.0 ou version ultérieure. - iPad
Nécessite iPadOS 16.0 ou version ultérieure. - Mac
Nécessite macOS 13.0 ou une version ultérieure et un Mac doté d’une puce Apple M1 ou une version ultérieure.
- iPhone
- Langues
- Anglais
- Âge
4+
- 4+
- Achats intégrés
Oui
- Full Version 4,99 $US
- Copyright
- © 2026 Maxy McMaxFace, LLC