Errly vs MathPrint
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Errly
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Turn today’s mistakes into tomorrow’s review. Errly is an AI error notebook for students aged 13+, from middle and high school to university. Save questions from homework and tests, understand the steps and practice with your own material. From daily homework to exam week After class, save the questions you found difficult and note what went wrong. Before a test, bring them back for focused review. At university, create subjects for your courses and keep problem sets and lecture questions together. Capture and organize • Capture handwritten questions: photograph them or write a question directly in the app, then check and edit the recognized text • Also scan printed questions, import images and PDF pages, or type your question • Keep multi-page passages and diagrams connected to their questions • Save the original, your answer, notes and the reason for a mistake • Correct the detected subject or save as Unclassified for later Make room for every subject Math, physics, chemistry and biology include subject-specific guidance and topic organization. Chinese language and literature, English, history, geography and politics are also built in. Create custom subjects for literature, other languages, university courses or professional exams, then organize them with your own labels. Understand, review and practice • Follow guided explanations of the reasoning • Ask follow-up questions with Pro or Ultra; explore another approach when suitable • Revisit saved questions with flashcards and spaced review • Generate practice from your mistakes; with Ultra, choose a supported question type, such as multiple choice or short answer, when suitable for the source question • Find questions by subject, keywords and labels; Ultra adds search by meaning • With Ultra, build printable worksheets from saved original questions or suitable AI-generated practice • Export questions and learning reports as PDF or Word, within your export allowance • Practice on paper with A4 PDFs: advanced templates leave room for working and put solutions on separate pages, with an eligible subscription or export credit Learn in eight languages The interface and explanations support English, Simplified Chinese, Japanese, French, German, Korean, Spanish and Portuguese. Choose how you read the explanation while keeping the original question unchanged. Keep your notebook across devices With Pro or Ultra, sign in and enable cloud sync to sync subjects, questions, images and progress across supported devices, within your cloud storage allowance. Saved local content remains available offline; AI requests require an internet connection. You can export or delete your data. AI explanations and generated practice depend on the question and the material provided. Automatic checking is available for supported question types; open-ended answers use reference points and self-review. Some features require a Basic, Pro or Ultra subscription. Usage and export allowances depend on your plan and purchases. Subscriptions renew automatically unless cancelled. Local prices, billing periods, any trial eligibility and full benefits are shown before purchase. Manage or cancel subscriptions in your Apple account settings. Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Errly Terms of Service: https://errly-60ac8.web.app/terms.html Privacy Policy: https://errly-60ac8.web.app/privacy.html
MathPrint
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MathPrint is a powerful, highly flexible math worksheet generator designed for teachers, homeschooling parents, and tutors. Create, customize, and export print-ready math practice sheets and answer keys in seconds—no tedious manual formatting required. Whether your students are mastering early number sense, practicing vertical arithmetic, or solving advanced exponents and factor trees, MathPrint provides a comprehensive library of question types tailored to every learning stage. Rich Variety of Math Topics: Number Sense & Place Value: Circle the bigger/prime/even numbers, tens & ones breakdown, place value, rounding whole numbers & decimals, number bonds, and skip counting. Basic & Integer Math: Single-digit to multi-digit horizontal addition, subtraction, multiplication, and division (e.g., Math within 20, Two-digit Math). Vertical Formats: Clear vertical column layouts for multi-digit addition, subtraction, and multiplication (e.g., 2-digit × 2-digit). Factors & Multiples: Common Factors (GCF), Common Multiples (LCM), Factor Trees, and Prime Factorization exercises. Powers & Roots: Exponents (power rules), fractional exponents, square roots, and cube roots calculations. Fractions, Decimals & Ratios: Equivalent fractions, fraction-to-percent conversions, fraction/decimal ordering, improper/mixed fraction conversions, and simplifying ratios. Algebraic Concepts & Number Logic: Roman numerals conversion, missing number reverse operations, sequence patterns, arithmetic comparisons, and BIDMAS order of operations. Featured Examples & Quick Presets: One-Tap Setup: Access pre-configured featured examples (such as Single-digit Addition, Math within 20, or GCF & LCM Worksheets) to build complete worksheets instantly. Custom Presets: Save your own custom header styles and parameter configurations for quick reuse anytime. Full Page & Layout Customization: Flexible Page Controls: Adjust page orientation, column count per row, line spacing, and font sizes. Header & Paper Settings: Customize worksheet headers (Name, Date, Score, Title) and configure standard paper sizes (A4, Letter) for crisp PDF exporting and seamless printing. Answer Key Generation: Automatically generate matching answer sheets alongside practice worksheets. Streamline your teaching prep and help students build math confidence with crisp, customized worksheets tailored precisely to their needs!
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Verdict
The clearest difference is ads: MathPrint at none against Errly's shown. Errly's advantage is update cadence (every 3 days vs weekly). On price, in-app purchases, device support and iOS requirement 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
Both are free to download. Errly sells 10 in-app purchases, starting at $2.99 per month and MathPrint sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Errly ships an update every 3 days, MathPrint weekly. The most recent releases landed on October 11, 2026 and October 26, 2026 respectively.
| Parameter | Errly | MathPrint |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Weekly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 — better | 15.6 |
| Further details — not scored | ||
| Size | 165 MB | 76 MB |
| Age rating | 12+ | 4+ |
| Developer | 奎锋 张 | 振凡 林 |
In-app purchases
Errly
- errly_extras_storage_50gb$2.991 Month
- Pro Weekly$4.997 Days
- Pro Monthly$9.991 Month
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- Ultra Monthly$14.991 Month
- Pro Yearly$59.991 Year
- Ultra Yearly$119.991 Year
- errly_extras_pdf_export_once$0.99
- errly_extras_theme_forest$0.99
- errly_extras_theme_midnight$2.99
Show 1 moreShow fewer
- errly_extras_pdf_export_unlimited$4.99
MathPrint
- Math Basic$9.99
- Math Pro$24.99









