# CalcSmart vs EPUB2PDF

The clearest difference is price: EPUB2PDF at Free against CalcSmart's $19.99. CalcSmart's advantage is in-app purchases (none vs 3) and update cadence (monthly vs every 3 months). On ads and device support there is nothing between them.

EPUB2PDF is free to download; CalcSmart costs $19.99 up front. EPUB2PDF sells 3 in-app purchases, starting at $3.99 per month. CalcSmart asks for nothing beyond the download.

CalcSmart ships an update monthly, EPUB2PDF every 3 months. The most recent releases landed on September 17, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | CalcSmart | EPUB2PDF |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/calcsmart/id6749968296/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | — |
| Size | 14 MB | 18 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Malachi Brown](https://appshunter.io/developer/1832966067) | [乐祥 胡](https://appshunter.io/developer/1572365721) |

## What reviewers say

### CalcSmart

[App page](https://appshunter.io/ios/app/calcsmart/id6749968296)

This advanced AI-powered calculator offers instant solutions to complex problems through photos, voice, or handwriting. It provides step-by-step explanations, revolutionary graphing, and financial analysis, making math accessible for students, professionals, and everyday users.

**Highlights:** AI-powered problem solving, Photo, voice, and handwriting input, Step-by-step explanations, Revolutionary graphing, Financial analysis tools, Universal language support

**Features:** macOS Compatibility

**In-app purchases:** none


### EPUB2PDF

[App page](https://appshunter.io/ios/app/epub2pdf/id6768984605)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EPUB2PDF Premium - 30DAYS | $3.99 | per month |
| EPUB2PDF Premium - 360DAYS | $3.99 | per year |
| EPUB2PDF Premium - lifetime | $7.99 | one-time |


## Frequently asked questions

### Is CalcSmart free?

CalcSmart costs $19.99, with no in-app purchases.

### Is EPUB2PDF free?

EPUB2PDF is free to download, with in-app purchases available.

### Do CalcSmart or EPUB2PDF have ads?

Neither CalcSmart nor EPUB2PDF shows ads.

### Which is updated more often, CalcSmart or EPUB2PDF?

CalcSmart ships an update monthly, and EPUB2PDF every 3 months. Most recently, CalcSmart was updated on September 17, 2026 and EPUB2PDF on September 12, 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.*