# Moonlight vs Calcium Text Calculator

The clearest difference is iOS requirement: Moonlight at 15.1 against Calcium Text Calculator's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Moonlight ships an update every 10 days, Calcium Text Calculator every 5 days. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Moonlight | Calcium Text Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 5 days** |
| Monetization | Free | — |
| Size | 66 MB | 3 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Corca, Inc.](https://appshunter.io/developer/1711708611) | [Twarge LLC](https://appshunter.io/developer/6781456673) |

## What reviewers say

### Moonlight

[App page](https://appshunter.io/ios/app/moonlight-ai-pdf-reader/id6738034562)

Streamline your research by integrating AI tools directly into your PDF documents. Get instant explanations, translations, and citation details without leaving your reading interface.

**Highlights:** AI-powered explanations, Document translation, Citation retrieval, Integrated research tools, Seamless PDF interaction

**Features:** Vision Pro support

**In-app purchases:** none


### Calcium Text Calculator

[App page](https://appshunter.io/ios/app/calcium-text-calculator/id6795935652)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Moonlight free?

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

### Is Calcium Text Calculator free?

Calcium Text Calculator is free to download, with no in-app purchases.

### Do Moonlight or Calcium Text Calculator have ads?

Neither Moonlight nor Calcium Text Calculator shows ads.

### Which is updated more often, Moonlight or Calcium Text Calculator?

Moonlight ships an update every 10 days, and Calcium Text Calculator every 5 days. Most recently, Moonlight was updated on October 23, 2026 and Calcium Text Calculator on October 24, 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.*