Comparison

FastMath vs Expression Solver

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

Head to head
About

FastMath

Instantly solve math problems by taking a photo, even handwritten ones. Get step-by-step solutions with explanations and graphical representations to improve your understanding and check your homework.

Highlights
  • Photo math problem solver
  • Handwritten problem support
  • Step-by-step solutions
  • Graphical representations
  • Homework checker
  • Cloud archive for problems
Features
Read full description

FastMath – Scan, Solve, Study & Ask FastMath turns your camera into a powerful AI math solver, study companion and homework helper. FastMath 3.x represents a new generation of FastMath, completely rebuilt and far beyond the experience of earlier 2.x and 1.x versions. The app now combines high-accuracy math solving, improved question detection, full-page worksheet scanning, multi-question solving, step-by-step explanations, and AI follow-up questions in one fast and organized workflow. Take a photo of a single math problem or scan an entire worksheet. FastMath detects the questions, solves them together, and presents the answers clearly so you can review the whole page without scanning problems one by one. FastMath is built for high-accuracy math solving, with improved detection, stronger reasoning, more reliable answers, and clearer step-by-step explanations across a wide range of math problems. Need more than just the answer? Open any question to explore a detailed solution, understand how the result was reached, and ask AI follow-up questions whenever something is unclear. SCAN AN ENTIRE WORKSHEET Capture a full worksheet, homework page, or practice sheet in one shot. FastMath can detect multiple math questions from the same image and process them together. SOLVE MULTIPLE QUESTIONS AT ONCE Stop scanning one problem at a time. FastMath identifies the questions on the page and gives you organized answers in one streamlined workflow. HIGH-ACCURACY AI MATH SOLVING FastMath is designed to provide accurate and reliable solutions with improved question recognition and advanced AI reasoning. STEP-BY-STEP SOLUTIONS Select any problem to view detailed solution steps. Follow the reasoning and understand how the answer was reached instead of seeing only the final result. ASK AI ABOUT ANY STEP Have a question about a specific part of the solution? Ask a follow-up question and get an additional explanation directly inside FastMath. BUILT FOR STUDY FastMath is more than an answer scanner. Use it to check homework, review practice problems, understand difficult concepts, prepare for exams, and study more efficiently. ORGANIZED QUESTION CARDS Each detected problem is organized into its own clear card, making it easy to move between questions, answers, and detailed solutions. EXPORT SOLUTIONS TO PDF Select the solutions you need and export them as a clean PDF for studying, saving, reviewing, or sharing. FEATURES • Full-page worksheet scanning • Multiple-question detection • High-accuracy AI math solving • Instant answers • Step-by-step explanations • AI follow-up questions • Homework and study support • Individual question selection • Organized question cards • PDF export • Support for printed math problems • Support for handwritten math problems • Fast camera-based workflow Whether you are checking your homework, studying for a test, reviewing a worksheet, or trying to understand a difficult math problem, FastMath helps you move from question → answer → explanation → understanding in one place. FastMath has been redesigned around accuracy, speed, clarity, and learning, giving you a smarter way to scan, solve, study, and understand math. Some features require a FastMath Pro subscription. Subscription options and prices are displayed in the app before purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current subscription period. You can manage or cancel your subscription from your Apple Account settings. Privacy Policy: https://www.fastmathai.com/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Use: https://www.fastmathai.com/terms-of-use

About

Expression Solver

This app provides step-by-step solutions for mathematical expressions, helping users improve their math skills. It features a specialized keyboard for easy input of complex numbers and offers practice exercises with detailed explanations.

Highlights
  • Instant expression solving
  • Step-by-step explanations
  • Math keyboard for complex input
  • Practice exercises with solutions
  • Intuitive interface
Features
Read full description

Turn your device into the perfect math study companion. "Expression Solver" is the ultimate app that guides you through solving any expression, from fractions to exponents, helping you understand the logic behind the numbers and always get the right results. Here's everything our app can do for you: ▶ STEP-BY-STEP SOLUTIONS Get the complete solution to any expression in an instant. But we don't stop at the final result: the app shows you all the logical steps in detail. It's the perfect tool to understand your mistakes, learn the correct method, and get fully prepared for homework and exams. ▶ INTEGRATED MATH KEYBOARD Use our dedicated interface to easily type fractions, exponents, roots, repeating decimals, parentheses, and much more. And if you need to paste an expression or prefer to use your device's standard keyboard, you can switch between modes in a snap. ▶ GUIDED EXERCISES FOR PRACTICE Test your skills with a rich library of ready-to-solve expressions, sorted by difficulty and complete with detailed solutions, so you can strengthen your math foundation whenever you want. ▶ CLEAN INTERFACE AND DARK THEME No complications. The UI is simple, intuitive, and includes an elegant dark theme, specifically optimized to prevent eye strain during your evening study sessions. ▶ GUARANTEED RELIABILITY Our algorithms are tested and highly optimized to ensure accurate and instant calculations every time, even for the longest and most complex expressions. ▶ CONSTANT UPDATES AND SUPPORT The app is regularly updated to always offer you the best performance and new features. Download "Expression Solver" today and take your math skills to the next level!

Screenshots

FastMath4 screens
Expression Solver4 screens

Verdict

The call

The clearest difference is review sentiment: Expression Solver at 100% against FastMath's 17%. Expression Solver also leads on in-app purchases (none vs 5) and iOS requirement (15.0 vs 18.6). FastMath's advantage is update cadence (every 5 days vs monthly). On price, ads 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. FastMath sells 5 in-app purchases, starting at $4.99 per 7 days. Expression Solver asks for nothing beyond the download.

UpkeepUpdate frequency

FastMath ships an update every 5 days, Expression Solver monthly. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
FastMath versus Expression Solver: the parameters behind the verdict, then further details
ParameterFastMathExpression Solver
PriceFreeFree
Rating4.2 (51K ratings) — better—
Positive reviews17.0% of reviews100.0% of reviews — better
Number of ratings51K — better—
Update frequencyEvery 5 days — betterMonthly
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.615.0 — better
Further details — not scored
Size73 MB47 MB
Age rating4+4+
DeveloperDakyuz Yazilim Ticaret Limited SirketiFrancesco Varotti

Customer experience

FastMath

All ratings51,286 ratings
Positive79.7%
Neutral3.4%
Negative16.9%
Written reviews601 reviews
Positive17.0%
Neutral2.5%
Negative80.5%

Expression Solver

Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

FastMath

Reported bugs

3 issues
  • Incorrect solutions for simple problems
  • App crashes frequently
  • Compatibility issues with older devices

Requested features

3 requests
  • Provide more explanation for basic problems
  • Allow free access to solutions
  • Improve camera functionality

Expression Solver

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

FastMath

Subscriptions4
  • Weekly Pack with Free Trial3 Days trial$4.997 Days
  • Subscription Monthly$9.991 Month
  • Subscription 3 Months$19.993 Months
Show 1 more
  • Six Months Subscription6 Months trial$29.996 Months
One-time1
  • Lifetime Pack$49.99
None

Expression Solver

No in-app purchases

Questions

Is FastMath free?
FastMath is free to download, with in-app purchases available.
Is Expression Solver free?
Expression Solver is free to download, with no in-app purchases.
Do FastMath or Expression Solver have ads?
Both FastMath and Expression Solver show ads.
Which is updated more often, FastMath or Expression Solver?
FastMath ships an update every 5 days, and Expression Solver monthly. Most recently, FastMath was updated on November 11, 2026 and Expression Solver on November 3, 2026.

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