Comparison

Smart Mental Math Trainer vs Sums

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

Head to head
About

Smart Mental Math Trainer

Improve your arithmetic skills with an AI coach that adapts to your learning pace. Master multiplication, division, percentages, and more through interactive lessons and targeted practice sessions. Learn practical calculation strategies to boost speed and accuracy in everyday situations.

Highlights
  • Adaptive AI coaching
  • Learn calculation strategies
  • Practice core arithmetic skills
  • Focus on weak spots
  • Progress tracking
  • Short, high-impact sessions
Features
Read full description

Stop doing random drills. Start training smarter with an adaptive coach that helps you improve step by step. Smart Mental Math gives you full access through a low-cost one-time purchase — no subscription required. Smart Mental Math is more than a drill app. It combines focused mental math training with a dedicated learning area that teaches helpful calculation strategies in a simple, practical way. Inside the app, you can train core arithmetic skills like times tables, natural numbers, decimals, and money, while also exploring useful mental math tricks that help you calculate faster in everyday situations. The Learn section is designed to make mental math easier to understand and easier to remember. It includes clear strategy cards, simple examples, and quick checks that help you learn techniques for: - multiplication - division - addition and subtraction - square numbers and roots - percentages and fractions Instead of only repeating problems, you also learn how to think through them more efficiently. That means you can build speed, improve accuracy, and develop stronger number sense over time. Smart Mental Math adapts to your performance, adjusts challenge as you improve, and helps you stay focused on the areas that need the most work. Whether you want faster multiplication, sharper division, better percentage intuition, or stronger daily calculation speed, the app gives you short, high-impact sessions that fit into your day. What makes Smart Mental Math different: - Adaptive training that responds to your level - A dedicated Learn area with mental math tricks and strategy-based explanations - Quick checks and guided examples to reinforce what you learn - Smart progression based on speed and accuracy - Focused practice for weak spots and daily improvement - Clear progress tracking that makes growth visible Great for students, parents, ambitious learners, and anyone who wants to think faster with numbers. Train faster. Learn smarter. Make mental math smart.

About

Sums

Features
Read full description

Ten problems. One attempt. The same ten for everyone on earth today. Sums is mental math for adults who got tired of being the person who reaches for a calculator to split a bill. So the whole app is a calculator — an LCD, keys that press, a lime equals — and you're the one doing the sums. One shared puzzle a day, then practice that actually aims at your level. THE DAILY A new set of ten drops at midnight, local time. Everyone in the world gets the same problems from the same seed. You get one attempt, and the clock runs from the moment you start — step away and it keeps running, which is what makes the number at the end mean something. Finish and you get your time, what you got right, where you were fast, where you were slow, and your percentile for the day. Then a card worth sharing: your marks and your time, nothing about the answers. Free forever. It's the whole point of the app, not a sample of it. PRACTICE Eleven modes, infinite generated problems, no content packs to buy: • Sprint — as many as you can in 60, 90 or 120 seconds • Zen — no timer, accuracy only • Survival — it runs until you miss one • Skill — drill one thing until it's automatic • Automatic — the skills you get right but slowly, until they're quick • True / False — 47 × 6 = 272? Yes or no, fast • Missing — 47 × ? = 282 • Money — tips, splits, discounts, unit price, in your currency • Chains — 17, +8, ×2, −5, and go • Clocks — read the dial, estimate the angle, count the minutes • Review — the error patterns that are due today STREAK The streak counts completed dailies, nothing else. One free freeze a month covers the day life got in the way. No red banners, no guilt. WHAT YOU WON'T FIND No ads. Not fewer ads, not ads-only-in-free — there is no ad network in this app at all. No lives, no energy, no coins, no cartoon mascot. No account to make. You play anonymously from the first tap. Every mode and every daily works offline. PREMIUM Free gives you the entire daily and unlimited Sprint, Zen and Survival. Premium changes what practice does for you: • Adaptive difficulty in every mode — problems that land at the edge of what you can do, instead of an average of everyone • The review queue — mistakes come back as patterns on a schedule, not as the same problem again • The full breakdown after every run, and deep stats: your error profile, your median time per skill, your daily history • Skill, Automatic, True/False, Missing, Money, Chains and Clocks modes • Daily archive: replay the days you missed • Unlimited streak freezes and one repair a month Sums Premium is $4.99 per week with a 3-day free trial, or $39.99 per year in the US; the price for your region is shown on the App Store. Payment is charged to your Apple Account at confirmation. It renews automatically unless auto-renew is turned off at least 24 hours before the period ends; your account is charged for renewal within 24 hours of the end of the current period. Manage or cancel anytime in your Apple Account settings — we also send a reminder 24 hours before a trial converts, because a short trial without a warning is a trap. Terms: https://sums.day/terms Privacy: https://sums.day/privacy Sums makes one promise: you will get faster and more accurate at arithmetic in your head, and you'll be able to see exactly how much, per skill. Nothing about IQ, nothing about your memory, nothing we can't show you in your own numbers.

Screenshots

Smart Mental Math Trainer4 screens
Sums4 screens

Verdict

The call

The clearest difference is device support: Smart Mental Math Trainer at 3 against Sums's 1. On price, update cadence, ads and in-app purchases 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. Smart Mental Math Trainer sells 2 one-off in-app purchases and Sums sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Smart Mental Math Trainer ships an update every 3 days, Sums every 4 days. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

Scorecard1 real difference · 9 level
Smart Mental Math Trainer versus Sums: the parameters behind the verdict, then further details
ParameterSmart Mental Math TrainerSums
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 days — betterEvery 4 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size32 MB61 MB
Age rating4+4+
DeveloperMaximilian DanilievGleb Matsko

In-app purchases

2 purchases

Smart Mental Math Trainer

One-time2
  • 3-day TrialFree
  • Lifetime Unlock$3.99
2 purchases

Sums

Subscriptions2
  • Pro Weekly3 Days trial$4.997 Days
  • Pro Yearly$39.991 Year

Questions

Is Smart Mental Math Trainer free?
Smart Mental Math Trainer is free to download, with in-app purchases available.
Is Sums free?
Sums is free to download, with in-app purchases available.
Do Smart Mental Math Trainer or Sums have ads?
Neither Smart Mental Math Trainer nor Sums shows ads.
Which is updated more often, Smart Mental Math Trainer or Sums?
Smart Mental Math Trainer ships an update every 3 days, and Sums every 4 days. Most recently, Smart Mental Math Trainer was updated on October 21, 2026 and Sums on October 10, 2026.

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