# dnCalc vs ThoughtCast Digital Mentalism

The clearest difference is update cadence: dnCalc at fortnightly against ThoughtCast Digital Mentalism's monthly. dnCalc also leads on iOS requirement (11.0 vs 16.6). On price, ads, in-app purchases and device support 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, ThoughtCast Digital Mentalism monthly. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | dnCalc | ThoughtCast Digital Mentalism |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free | — |
| Size | 15 MB | 41 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Devious-Monkey](https://appshunter.io/developer/388388527) | [AndEtc, Inc.](https://appshunter.io/developer/1311918485) |

## 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


### ThoughtCast Digital Mentalism

[App page](https://appshunter.io/ios/app/thoughtcast-digital-mentalism/id1567445270)

**In-app purchases:** none


## Frequently asked questions

### Is dnCalc free?

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

### Is ThoughtCast Digital Mentalism free?

ThoughtCast Digital Mentalism is free to download, with no in-app purchases.

### Do dnCalc or ThoughtCast Digital Mentalism have ads?

Neither dnCalc nor ThoughtCast Digital Mentalism shows ads.

### Which is updated more often, dnCalc or ThoughtCast Digital Mentalism?

dnCalc ships an update fortnightly, and ThoughtCast Digital Mentalism monthly. Most recently, dnCalc was updated on October 13, 2026 and ThoughtCast Digital Mentalism on October 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.*