Comparison

Smart Calc+ vs ThemeCalc

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

Head to head
About

Smart Calc+

Read full description

Your ultimate tool for basic algebra, trigonometry (sin, cos), logarithms (log), and more. Perform quick and accurate calculations with a built-in history log to keep track of all your calculations.

About

ThemeCalc

Enhance your math experience with a powerful scientific calculator featuring over 40 aesthetic themes. It offers a professional engine for various math levels, a programmer mode, and a history tape for easy recall. Customize your calculator's look and feel while tackling complex problems.

Highlights
  • Professional scientific calculator engine
  • 40+ aesthetic themes
  • Programmer mode (HEX, DEC, OCT, BIN)
  • History tape for past calculations
  • Haptic feedback
  • Customizable layouts
Features
Read full description

Calculate fractions, work through scientific math and find polynomial roots in a calculator you can make your own. Start with free calculator tools and included themes. No banner ads or automatic ad interruptions while you calculate. MATH THAT'S EASY TO READ โ€ข Enter fractions, roots and powers in textbook-style notation. โ€ข Switch between exact fractions and decimal results. โ€ข Use trigonometry, degree and radian modes, logarithms and factorials. โ€ข Handle everyday arithmetic and percentages with a clear basic keypad. A CALCULATOR IN YOUR STYLE Preview themes before choosing. Explore metallic keys, paper textures and luminous designs. Browse a carousel on iPhone or a spacious theme grid on iPad. Additional themes are available through optional purchases. POLYNOMIAL EQUATIONS Find polynomial roots in Math Lab, review the results and reuse a value in your next calculation. PROGRAMMER TOOLS Work in HEX, DEC, OCT and BIN. Use bitwise operations, shifts, rotations and configurable bit widths, and inspect individual bits. PICK UP WHERE YOU LEFT OFF Revisit calculation history, copy results and continue from a previous calculation. Set sound and haptic feedback to suit the way you work. ROOM TO WORK ON iPAD A dedicated workspace brings sidebar navigation, recent calculations and multi-column tools. Layouts adapt to portrait, landscape and smaller windows. OPTIONAL THEMES AND PURCHASES Calculator tools and included free themes work without a purchase. Premium subscriptions unlock all themes while active. Lifetime theme access is also available as a one-time purchase. Optional rewarded ads let you try eligible themes in the Gallery. Availability and current prices are shown in the app. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Payment is charged to your Apple ID account. Manage or cancel subscriptions in your App Store account settings. Support: https://toankhontech.com/en/contact Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Smart Calc+3 screens
ThemeCalc4 screens

Verdict

The call

The clearest difference is in-app purchases: Smart Calc+ at none against ThemeCalc's 17. Smart Calc+ also leads on ads (none vs shown) and iOS requirement (13.4 vs 18.0). On price, update cadence and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. ThemeCalc sells 17 in-app purchases, starting at $0.99 per month. Smart Calc+ asks for nothing beyond the download.

UpkeepUpdate frequency

Smart Calc+ ships an update every 3 days, ThemeCalc every 6 days. The most recent releases landed on October 27, 2026 and October 18, 2026 respectively.

Scorecard3 real differences ยท 5 level
Smart Calc+ versus ThemeCalc: the parameters behind the verdict, then further details
ParameterSmart Calc+ThemeCalc
PriceFreeFree
Positive reviewsโ€”100.0% of reviews
Update frequencyEvery 3 days โ€” betterEvery 6 days
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
Monetizationโ€”Free with in-app purchases
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS13.4 โ€” better18.0
Further details โ€” not scored
Size22 MB42 MB
Age rating4+4+
DeveloperRahman UstaNguyen Toan Le

In-app purchases

None

Smart Calc+

No in-app purchases

17 purchases

ThemeCalc

Subscriptions2
  • Premium Monthly7 Days trial$0.991 Month
  • Premium Yearly7 Days trial$5.991 Year
One-time15
  • Solar Flare$1.99
  • Valhalla Viking$1.99
  • Sakura Zen Garden$1.99
Show 12 more
  • Atlantis Deep$1.99
  • Quantum Processor$1.99
  • Casio fx-991ES Theme$1.99
  • Casio fx-115ES Theme$1.99
  • Casio fx-570VN Theme$1.99
  • Casio fx-350MS Theme$1.99
  • Casio fx-580VN X Theme$1.99
  • Casio fx-CG50 Theme$1.99
  • Casio fx-92 Collรจge Theme$1.99
  • Casio fx-5800P Theme$1.99
  • Casio fx-9860GII Theme$1.99
  • Unlock Everything$9.99

Questions

Is Smart Calc+ free?
Smart Calc+ is free to download, with no in-app purchases.
Is ThemeCalc free?
ThemeCalc is free to download, with in-app purchases available.
Do Smart Calc+ or ThemeCalc have ads?
ThemeCalc shows ads; Smart Calc+ does not.
Which is updated more often, Smart Calc+ or ThemeCalc?
Smart Calc+ ships an update every 3 days, and ThemeCalc every 6 days. Most recently, Smart Calc+ was updated on October 27, 2026 and ThemeCalc on October 18, 2026.

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