Sigma - GPA Calculator
Sigma - GPA Calculator Summary
Sigma - GPA Calculator is a free, with in-app purchases iOS app in Education by BULPARA TEKNOLOJI LIMITED SIRKETI. Released in Jan 2026 (8 months ago). Store last updated Jan 29, 2026
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App Description
The GPA calculator that actually understands how college works.
Sigma is named after the Σ in the GPA formula — because we actually calculate it right. Unlike other apps that simply average your grades, Sigma weighs each course by credit hours, giving you the same GPA your transcript shows.
▸ CREDIT-WEIGHTED GPA
The formula your transcript uses, finally in an app.
• Proper weighting — your 4-credit Calculus matters more than your 1-credit seminar
• Per-class grading scales — set A/A-/B+ or A/B/C for each course independently
• Semester and cumulative GPA — track both, see the breakdown
• Real-time updates — your GPA recalculates as you enter grades
▸ TRACK EVERY ASSIGNMENT
Stay on top of your classes with organized grade tracking.
• Weighted categories — Exams 40%, Homework 30%, Labs 20%, Participation 10%
• Drop lowest grades — configure per category
• Extra credit support — calculate your real score
• Quick entry — add assignments in seconds
▸ WHAT DO I NEED?
Stop guessing what score you need on your final.
• Set your target grade — pick a letter or percentage
• See exactly what you need — on remaining assignments
• Know when it's impossible — no false hope, just math
▸ WIDGETS FOR YOUR HOME SCREEN
Check your GPA without opening the app.
• Small widget — current GPA at a glance
• Medium widget — GPA plus your lowest-graded course
• Large widget — all courses with current grades
• Lock screen — see your GPA instantly
▸ PRIVACY FIRST
Your grades are your business.
• iCloud sync only — through your personal Apple account
• No tracking — we don't collect analytics or location
• No ads — ever
• Offline-first — works without internet
▸ PRICING
FREE:
• 6 classes (a full semester for most students)
• Full credit-weighted GPA calculation
• All assignment tracking features
• iCloud sync across devices
PREMIUM SUBSCRIPTION
Sigma Premium is available with the following subscription options:
Premium Monthly: $4.99/month
Premium Annual: $29.99/year (Save 50%) — includes 7-day free trial
Premium unlocks:
• Unlimited classes and semesters
• Home screen and lock screen widgets
• Export to PDF and CSV
• Custom themes and app icons
• Priority support
Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automati