# dnCalc vs SvenGallery

The clearest difference is update cadence: dnCalc at fortnightly against SvenGallery's every 4 months. dnCalc also leads on device support (3 vs 1) and iOS requirement (11.0 vs 18.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

dnCalc ships an update fortnightly, SvenGallery every 4 months. The most recent releases landed on October 13, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | dnCalc | SvenGallery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/svengallery/id6742534198/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Monetization | Free | Free |
| Size | 15 MB | 17 MB |
| Requires iOS | **11.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Devious-Monkey](https://appshunter.io/developer/388388527) | [Chetan Mehta](https://appshunter.io/developer/1798888502) |

## What reviewers say

### dnCalc

[App page](https://appshunter.io/ios/app/dncalc/id1309683648)

Perform amazing mathematical "experiences" to impress friends and colleagues. This app allows you to reveal secret numbers, ages, zodiac signs, and more, all without touching a calculator. It's easy to use, requires no memorization, and can be done with your eyes closed.

**Highlights:** Reveal secret numbers, Peek at ages and zodiac signs, Calculate birth day of week, Create custom formulas, Works offline, Up to 5 participants

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

**In-app purchases:** none


### SvenGallery

[App page](https://appshunter.io/ios/app/svengallery/id6742534198)

This app digitally recreates the classic Svengali card trick using images. Spectators select a photo, and all images in the gallery instantly transform into the chosen one, offering a modern magic illusion.

**Highlights:** Digital Svengali card trick reimagined, Spectator selects any image, Instantaneous image transformation, Modern blend of magic and technology, Dedicated image reveal system

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is dnCalc free?

dnCalc is free to download, with no in-app purchases.

### Is SvenGallery free?

SvenGallery is free to download, with no in-app purchases.

### Do dnCalc or SvenGallery have ads?

Neither dnCalc nor SvenGallery shows ads.

### Which is updated more often, dnCalc or SvenGallery?

dnCalc ships an update fortnightly, and SvenGallery every 4 months. Most recently, dnCalc was updated on October 13, 2026 and SvenGallery on September 27, 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.*