# DB40X vs Clover

The clearest difference is review sentiment: Clover at 100% against DB40X's 67%. Clover also leads on update cadence (weekly vs every 3 weeks). DB40X's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (14.0 vs 17.0). 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.

DB40X ships an update every 3 weeks, Clover weekly. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | DB40X | Clover |
| --- | --- | --- |
| 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 | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 32 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christophe de Dinechin](https://appshunter.io/developer/1761608161) | [郑 陶](https://appshunter.io/developer/6807446220) |

## 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


### Clover

[App page](https://appshunter.io/ios/app/clover-notes-for-trilium/id6809127554)

Access and manage your self-hosted knowledge base on mobile. Read notes offline, search extensively, and write with a rich-text editor. Offers advanced features like AI chat and widgets with a Pro upgrade.

**Highlights:** Offline reading and writing, Full-text search, Rich-text editor, Voice-to-text input, Share extension, AI chat integration, Widgets

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

**In-app purchases:** none


## Frequently asked questions

### Is DB40X free?

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

### Is Clover free?

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

### Do DB40X or Clover have ads?

Neither DB40X nor Clover shows ads.

### Which is updated more often, DB40X or Clover?

DB40X ships an update every 3 weeks, and Clover weekly. Most recently, DB40X was updated on October 3, 2026 and Clover on October 14, 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.*