momo vs *CalcMemo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
momo
This app offers a comprehensive suite of calculation tools, including basic arithmetic, scientific computations, and extensive unit conversions. Its minimalist dark theme interface provides a distraction-free experience for users of all levels.
- Basic calculator functions
- Advanced scientific calculations
- Extensive unit conversions
- Minimalist dark theme
- Real-time calculation results
- Ad-free experience
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MoMo: Calculator Pro - Your Intelligent Calculation Expert Transform your device into a powerful calculation hub with MoMo! This all-in-one calculator combines basic arithmetic, scientific computations, and comprehensive unit conversions in one sleek app. Say goodbye to switching between multiple calculator apps - MoMo handles all your calculation needs effortlessly! KEY FEATURES • Basic Calculator: Addition, subtraction, multiplication, division, percentages, decimals, and more • Scientific Calculator: Professional calculations for advanced users • Comprehensive Unit Conversion Systems: Length (meters, centimeters, inches, feet) Area (square meters, square centimeters, square feet) Weight (kilograms, grams, pounds, ounces) Volume (cubic meters, liters, gallons) Temperature (Celsius, Fahrenheit, Kelvin) Time (seconds, minutes, hours, days) Speed (m/s, km/h, mph) USER EXPERIENCE • Minimalist Design: Dark theme interface for reduced eye strain • One-Touch Operation: Intuitive interface for users of all levels • Real-Time Calculation: Instant results as you type • Precision Computing: High-accuracy algorithms for reliable results • Smart Number Display: Automatic scientific notation for extreme values • Ad-Free Experience: Pure, distraction-free calculation environment PERFECT FOR • Students: Daily math calculations • Engineers: Technical computations and unit conversions • Finance Professionals: Quick financial calculations • Home Managers: Shopping and cooking measurement conversions • Travelers: International unit conversions • Anyone needing a reliable calculator: Simple, intuitive, efficient WHY CHOOSE MoMo? • Free to Use: All features available at no cost • Zero Ads: Clean interface focused on functionality • All-in-One Solution: Multiple calculation tools in one app • Regular Updates: Continuous optimization and feature enhancements SMART FEATURES • Instant calculations • High-precision results • Multiple unit conversion systems • Scientific notation support • User-friendly interface • Dark theme for comfortable viewing Download MoMo now and experience the future of mobile calculation! Whether you're a student, professional, or anyone who needs a reliable calculator, MoMo is your perfect calculation companion. Transform complex calculations into simple solutions with MoMo: Calculator Pro - Your pocket calculation expert! #Calculator #UnitConverter #MathTools #Scientific
*CalcMemo
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A calculator that remembers what your numbers were for. "Wait, what was this $385 for?" A normal calculator only keeps the answer. CalcMemo puts every calculation into a note, and lets you add a line of text in between. Quotes, budgets, splitting the bill, trip costs: come back later and you can still see what you calculated and why. ■ Made for • Quotes: unit price × quantity, with item names • Budgets: monthly bills in one folder, with a total • Splitting the bill: head count and rounding, all on record • Loans: compare monthly payments and total interest • Due dates: a monthly reminder on the 25th to pay rent ■ Calculator and notes on one screen Notes on top, calculator below. Every "=" adds the expression and answer to the note. Add headings and memos anywhere to keep it readable. Ans button recalls the last answer. ■ Scientific functions and statistics The f(x) tab adds trig, logs, powers, factorial, parentheses and memory (M+ M− MR MC). Select calculations in a note to see their sum, mean, max, min and standard deviation. ■ Money math built in • Loans (including balloon payments) • Loan prepayment simulator (Pro) • Savings plan (Pro) • Compound interest • Profit margin and discounts • Bill splitting with rounding • Sales tax • Date and day counting • Unit conversion (length, weight, temperature, area, volume, speed, fuel economy, time) Save any result to your note in one tap. ■ Reminders and widgets • Note reminders (Pro): once, daily, weekly or monthly. Tap the notification to open the note • Daily reminder: a nudge at the same time every day • Home Screen widgets (Pro): pinned notes, a folder, or one note's answer ■ Organized like a notes app Folders, pinning, grouping by date, reordering, moving between folders, and search across all notes. ■ iPad three-column layout Folders, notes and calculator on one screen, with a calculator you can float anywhere. ■ CalcMemo Pro (one-time purchase) Buy once, keep it forever. No subscription. • Unlimited folders and notes (free: 3 folders, 30 notes) • Lock folders with Face ID • Export notes as PDF or CSV • Savings and prepayment planners with charts • Home Screen widgets • Note reminders ■ Built to be trusted No ads, no account. Your notes stay on your device and are never uploaded. Back up and move to a new phone with JSON export. Available in 16 languages.
Screenshots
Verdict
The clearest difference is ads: *CalcMemo at none against momo's shown. momo's advantage is update cadence (daily 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. Neither carries in-app purchases, so what you see is what you pay.
momo ships an update daily, *CalcMemo weekly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.
| Parameter | momo | *CalcMemo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Daily — better | Weekly |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.5 | 16.4 — better |
| Further details — not scored | ||
| Size | 99 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | 雅楠 陈 | Tomoyuki Fukuzawa |
In-app purchases
momo
No in-app purchases
*CalcMemo
No in-app purchases









