Comparison

Sigma vs Pre Calculus Solver AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sigma

Features
Read full description

Staring at a statistics problem shouldn't feel impossible. Stat Solver gives you the tools to understand, practice, and master statistics — whether you're in college, prepping for an exam, or just trying to survive the semester. Scan & Solve Point your camera at any statistics problem and let AI analyze it instantly. Get clear, step-by-step solutions without the guesswork. AI Tutor Chat Ask your statistics tutor anything — probability, distributions, hypothesis testing, regression. Get real answers in plain language, anytime. Practice with 60 Levels Work through a structured learning path from beginner to advanced. Filter by topic and earn XP as you progress through quizzes designed to actually prepare you for exams. Statistics Calculator Solve binomial, normal, Poisson, Z-score, T-distribution, and more — with visual graphs and instant results. Statistical Tables & Formulas Z-Table, T-Table, Chi-Square, and comprehensive formula sheets — everything you need in one place, no internet required. Built for real students Dark mode, daily reminders, and a clean interface designed to make studying less painful. AI-assisted scanning and Tutor Chat available with purchase. Support: https://yorgisoft.vercel.app Terms Of Use: https://yorgisoft.vercel.app/#/terms Privacy Policy: https://yorgisoft.vercel.app/#/privacy

About

Pre Calculus Solver AI

This app acts as a personal math tutor, helping users understand precalculus concepts. It provides step-by-step solutions to problems by analyzing photos or typed input, and offers interactive tutoring to deepen comprehension.

Highlights
  • Photo or text input for problems
  • Step-by-step solution explanations
  • Interactive AI tutoring
  • Convert solutions to flashcards
  • Covers various precalculus topics
  • Study at your own pace
Features
Read full description

Unlock the mysteries of precalculus with Pre Calculus Solver AI, your personal math tutor available anytime, anywhere. Whether you're grappling with complex functions or unraveling the intricacies of trigonometry, this app has you covered. Simply snap a photo of your problem or type it in, and watch as your path to understanding unfolds. Feeling overwhelmed by equations and formulas? Pre Calculus Solver AI transforms your frustration into clarity, guiding you step-by-step through solutions. This isn't just about getting the right answer—it's about learning the process and gaining a deeper comprehension of precalculus concepts. Why students love Pre Calculus Solver AI: Snap and solve in seconds Capture an image of your precalculus problem or enter it manually to receive a detailed, step-by-step solution quickly. Interactive tutoring at your fingertips Engage with your AI tutor to ask 'why,' 'how,' or 'what if' questions until you're confident with the material. Transform solutions into study aids Convert solved problems into interactive flashcards to review key formulas, definitions, and problem-solving strategies. Study at your own pace Benefit from tailored explanations that match your learning speed and level of understanding. Topics covered Pre Calculus Solver AI covers a wide range of topics including polynomial and rational functions, exponential and logarithmic functions, sequences and series, trigonometry, vectors, and more. The app adapts to your educational needs, making challenging concepts feel approachable and manageable. Perfect for - Students aiming for a solid understanding of precalculus - Parents assisting with homework - Test prep for SAT, ACT, AP, and college entrance exams - Lifelong learners expanding their math skills We are continuously improving. Send feedback or ideas to support_precalculus@gritapps.com. Subscription information Payment will be charged to your iTunes Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current billing period. You can manage or cancel your subscription anytime in Account Settings. Your account will be charged for renewal within 24 hours before the end of the current period. Any unused portion of a free trial will be forfeited when you purchase a subscription. Terms of Use: https://filing-beacon.notion.site/Terms-of-Use-293f82bf870880899736c1f9e0bfc89b Privacy Policy: https://filing-beacon.notion.site/Privacy-Policy-293f82bf87088021a442c4b8e2e5ef7d

Screenshots

Sigma4 screens
Pre Calculus Solver AI4 screens

Verdict

The call

The clearest difference is ads: Sigma at none against Pre Calculus Solver AI's shown. Pre Calculus Solver AI's advantage is iOS requirement (15.1 vs 26.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sigma sells 2 in-app purchases, starting at $4.99 per 7 days and Pre Calculus Solver AI sells 5 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Sigma ships an update every 2 months, Pre Calculus Solver AI every 6 weeks. Both last shipped on October 17, 2026.

Scorecard2 real differences · 7 level
Sigma versus Pre Calculus Solver AI: the parameters behind the verdict, then further details
ParameterSigmaPre Calculus Solver AI
PriceFreeFree
Rating—5.0 (4 ratings) — better
Number of ratings—4 — better
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.1 — better
Further details — not scored
Size81 MB54 MB
Age rating4+4+
DeveloperYorgi Del RioSerhii Shlykov

In-app purchases

2 purchases

Sigma

Subscriptions2
  • Weekly3 Days trial$4.997 Days
  • Annual$29.991 Year
5 purchases

Pre Calculus Solver AI

Subscriptions5
  • Pre Calculus Solver AI Weekly$4.997 Days
  • Pre Calculus Solver AI Weekly3 Days trial$4.997 Days
  • Pre Calculus Solver AI Yearly$19.991 Year
Show 2 more
  • Pre Calculus Solver AI Yearly$29.991 Year
  • Pre Calculus Solver AI Yearly3 Days trial$29.991 Year

Questions

Is Sigma free?
Sigma is free to download, with in-app purchases available.
Is Pre Calculus Solver AI free?
Pre Calculus Solver AI is free to download, with in-app purchases available.
Do Sigma or Pre Calculus Solver AI have ads?
Pre Calculus Solver AI shows ads; Sigma does not.
Which is updated more often, Sigma or Pre Calculus Solver AI?
Sigma ships an update every 2 months, and Pre Calculus Solver AI every 6 weeks. Most recently, Sigma was updated on October 17, 2026 and Pre Calculus Solver AI on October 17, 2026.

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