# DB40X vs TickStack

The clearest difference is in-app purchases: DB40X at none against TickStack's 2. DB40X also leads on device support (3 vs 1) and iOS requirement (14.0 vs 18.0). On price and ads there is nothing between them.

Both are free to download. TickStack sells 2 in-app purchases, starting at $1.99 per month. DB40X asks for nothing beyond the download.

## The numbers

| Metric | DB40X | TickStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7 ratings)](https://appshunter.io/ios/app/db40x/id6624315901/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 7 MB | 17 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Christophe de Dinechin](https://appshunter.io/developer/1761608161) | [RevelRain](https://appshunter.io/developer/1808697602) |

## What reviewers say

### DB40X

[App page](https://appshunter.io/ios/app/db40x/id6624315901)

A high-precision scientific calculator inspired by the HP48 series, offering arbitrary precision computations, complex numbers, vectors, matrices, and graphing. It supports RPN and algebraic operations, with over 1000 built-in functions and a hyperlinked help system.

**Highlights:** Arbitrary precision computations, RPN and algebraic operations, Complex numbers, vectors, and matrices, Graphing and plotting, Engineering units and conversions, Hyperlinked help system

**Features:** macOS Compatibility

**In-app purchases:** none


### TickStack

[App page](https://appshunter.io/ios/app/tickstack-multiple-timers/id6759676935)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TickStack Monthly Pro | $1.99 | per month |
| TickStack Lifetime PRO | $12.99 | one-time |


## Frequently asked questions

### Is DB40X free?

DB40X is free to download, with no in-app purchases.

### Is TickStack free?

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

### Do DB40X or TickStack have ads?

Neither DB40X nor TickStack shows ads.

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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.*