# Caldy vs Deep

The clearest difference is price: Deep at Free against Caldy's $2.99. Caldy's advantage is update cadence (fortnightly vs every 17 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Deep is free to download; Caldy costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Caldy ships an update fortnightly, Deep every 17 months. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Caldy | Deep |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/caldy-visual-calculator/id1577075538/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 17 months |
| Monetization | Paid | — |
| Size | 1 MB | 9 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alventir Ltd](https://appshunter.io/developer/1527058758) | [Rahul Rao](https://appshunter.io/developer/1755617973) |

## What reviewers say

### Caldy

[App page](https://appshunter.io/ios/app/caldy-visual-calculator/id1577075538)

This app offers a visual approach to calculations, linking values with arrows and allowing for dynamic editing of expressions. It supports organizing calculations into documents, plotting expressions, and includes various math functions. Ideal for complex calculations beyond basic arithmetic.

**Highlights:** Visual calculation linking, Editable expressions with automatic updates, Document-based organization, Plotting and zooming capabilities, Trigonometry and math functions, Dark mode support, Export sheets as images

**In-app purchases:** none


### Deep

[App page](https://appshunter.io/ios/app/deep-focus-and-practice-timer/id6743986862)

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

**In-app purchases:** none


## Frequently asked questions

### Is Caldy free?

Caldy costs $2.99, with no in-app purchases.

### Is Deep free?

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

### Do Caldy or Deep have ads?

Neither Caldy nor Deep shows ads.

### Which is updated more often, Caldy or Deep?

Caldy ships an update fortnightly, and Deep every 17 months. Most recently, Caldy was updated on October 8, 2026 and Deep on October 4, 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.*