# Sudden Call vs Image to PDF.

The clearest difference is update cadence: Image to PDF. at monthly against Sudden Call's every 47 months. Image to PDF. also leads on rating (4.8 vs 4.6) and review sentiment (62% vs 43%). Sudden Call's advantage is iOS requirement (9.1 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Sudden Call sells 1 one-off in-app purchase and Image to PDF. sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Image to PDF. holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 54 and 146 respectively. Written reviews point the same way: 43% of Sudden Call's written reviews are positive against 62% of Image to PDF.'s.

Sudden Call ships an update every 47 months, Image to PDF. monthly. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Sudden Call | Image to PDF. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (54 ratings)](https://appshunter.io/ios/app/sudden-call/id737519455/reviews) | **[4.8 (146 ratings)](https://appshunter.io/ios/app/image-to-pdf/id6470886096/reviews)** |
| Number of ratings | 54 | **146** |
| Positive reviews | 42.9% of reviews | **61.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 47 months | **Monthly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 1 MB | 10 MB |
| Requires iOS | **9.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [AMAXIM APPS, INC](https://appshunter.io/developer/488569471) | [Le Giang Nam](https://appshunter.io/developer/1588693429) |

## What reviewers say

### Sudden Call

[App page](https://appshunter.io/ios/app/sudden-call/id737519455)

This app provides a fake incoming call to help you exit unwanted conversations or meetings. It features a simple interface with preset and scheduled call options for quick and easy use. Designed purely for entertainment, it does not make or receive real phone calls.

**Highlights:** Fake incoming calls, Exit unwanted conversations, Simple one-screen design, Easy presets, Scheduled calls, Entertainment purposes only

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Future Call | $1.99 | one-time |


### Image to PDF.

[App page](https://appshunter.io/ios/app/image-to-pdf/id6470886096)

Easily convert your photos and images into PDF documents in just a few steps. Import from various sources, edit settings, and share or print your created PDFs. Compress files to reduce size for easier sharing.

**Highlights:** Convert photos to PDF, Import from iCloud, Files, gallery, Supports multiple image formats, Edit and manage PDF files, Compress PDF files, Work offline, Share and print PDFs

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Image to PDF+ | $0.99 | per 7 days |
| Image to PDF+ | $9.99 | per year |
| Image to PDF+ Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Sudden Call free?

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

### Is Image to PDF. free?

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

### Which has better reviews, Sudden Call or Image to PDF.?

Image to PDF. is rated higher. Sudden Call averages 4.6 out of 5 from 54 ratings, while Image to PDF. averages 4.8 from 146 ratings.

### Do Sudden Call or Image to PDF. have ads?

Neither Sudden Call nor Image to PDF. shows ads.

### Which is updated more often, Sudden Call or Image to PDF.?

Sudden Call ships an update every 47 months, and Image to PDF. monthly. Most recently, Sudden Call was updated on November 1, 2026 and Image to PDF. on November 7, 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.*