# calQuery vs PDF. Scanner.

The clearest difference is in-app purchases: calQuery at none against PDF. Scanner.'s 3. calQuery also leads on iOS requirement (14.5 vs 16.4). PDF. Scanner.'s advantage is update cadence (every 5 weeks vs every 9 months). On price, ads and device support there is nothing between them.

Both are free to download. PDF. Scanner. sells 3 one-off in-app purchases. calQuery asks for nothing beyond the download.

calQuery ships an update every 9 months, PDF. Scanner. every 5 weeks. The most recent releases landed on June 11, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | calQuery | PDF. Scanner. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calquery/id1596650479/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 1 MB | 19 MB |
| Requires iOS | **14.5** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Uwe Holtkamp](https://appshunter.io/developer/1191830477) | [Juergen Koller Software GmbH](https://appshunter.io/developer/1604001664) |

## What reviewers say

### calQuery

[App page](https://appshunter.io/ios/app/calquery/id1596650479)

Easily search your iPhone or iPad calendar for past events. Results can be sorted by date, location, or alphabetically. Tapping a result opens the corresponding day in your native calendar app.

**Highlights:** Search past calendar events, Sort results by date, location, alphabet, Open events in native calendar, Supports iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF. Scanner.

[App page](https://appshunter.io/ios/app/pdf-scanner/id6472706694)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 AI Names | $1.99 | one-time |
| 200 AI Names | $4.99 | one-time |
| 500 AI Names | $8.99 | one-time |


## Frequently asked questions

### Is calQuery free?

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

### Is PDF. Scanner. free?

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

### Do calQuery or PDF. Scanner. have ads?

Neither calQuery nor PDF. Scanner. shows ads.

### Which is updated more often, calQuery or PDF. Scanner.?

calQuery ships an update every 9 months, and PDF. Scanner. every 5 weeks. Most recently, calQuery was updated on June 11, 2026 and PDF. Scanner. on September 17, 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.*