# Smart Calc+ vs ThemeCalc

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.

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.

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.

## The numbers

| Metric | Smart Calc+ | ThemeCalc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 6 days |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 42 MB |
| Requires iOS | **13.4** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rahman Usta](https://appshunter.io/developer/1750311538) | [Nguyen Toan Le](https://appshunter.io/developer/1462706953) |

## What reviewers say

### Smart Calc+

[App page](https://appshunter.io/ios/app/smart-calc-plus/id6504203262)

**In-app purchases:** none


### ThemeCalc

[App page](https://appshunter.io/ios/app/themecalc-math-and-calculator/id6605930538)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium Yearly | $5.99 | per year |
| Solar Flare | $1.99 | one-time |
| Valhalla Viking | $1.99 | one-time |
| Sakura Zen Garden | $1.99 | one-time |
| Atlantis Deep | $1.99 | one-time |
| Quantum Processor | $1.99 | one-time |
| Casio fx-991ES Theme | $1.99 | one-time |
| Casio fx-115ES Theme | $1.99 | one-time |
| Casio fx-570VN Theme | $1.99 | one-time |
| Casio fx-350MS Theme | $1.99 | one-time |
| Casio fx-580VN X Theme | $1.99 | one-time |
| Casio fx-CG50 Theme | $1.99 | one-time |
| Casio fx-92 Collège Theme | $1.99 | one-time |
| Casio fx-5800P Theme | $1.99 | one-time |
| Casio fx-9860GII Theme | $1.99 | one-time |
| Unlock Everything | $9.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*