# Soulver 4 vs PDF Squeezer

The clearest difference is ratings volume: Soulver 4 at 429 against PDF Squeezer's 22. Soulver 4 also leads on review sentiment (76% vs 64%). PDF Squeezer's advantage is monetization model (free with in-app purchases vs paid). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Soulver 4 sells 14 in-app purchases, starting at $26.00 per year and PDF Squeezer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Soulver 4 against 4.8 for PDF Squeezer. That said, the two scores are not equally well evidenced: Soulver 4 has 429 ratings behind it against 22, so its average is the more settled of the two. Written reviews are what separate them: 76% of Soulver 4's written reviews are positive against 64% of PDF Squeezer's.

Both ship on a similar rhythm, roughly monthly. Both last shipped on October 17, 2026.

## The numbers

| Metric | Soulver 4 | PDF Squeezer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (429 ratings)](https://appshunter.io/ios/app/soulver-4/id1508732804/reviews)** | [4.8 (22 ratings)](https://appshunter.io/ios/app/pdf-squeezer/id6478766883/reviews) |
| Number of ratings | **429** | 22 |
| Positive reviews | **76.0% of reviews** | 63.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 39 MB | 29 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zac Cohan](https://appshunter.io/developer/1508732803) | [Daniel Witt](https://appshunter.io/developer/1438848391) |

## What reviewers say

### Soulver 4

[App page](https://appshunter.io/ios/app/soulver-4/id1508732804)

This app combines the functionality of a notepad with a powerful calculator. It allows users to perform complex calculations using natural language, supports unit conversions, date math, and live currency conversions. Organize your calculations in sheets with text comments and share them as PDFs.

**Highlights:** Natural language calculations, Unit and currency conversions, Date and time math, Live currency and stock prices, Customizable accessory keyboards, Spreadsheet-like line references, Variables and conditional statements

**Features:** Family Sharing, Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Assistant, Stocks & Weather | $26.00 | per year |
| Complementary Upgrade | Free | one-time |
| 30-day free trial (for iPhone) | Free | one-time |
| 60-day free trial (for iPad) | Free | one-time |
| 60-day free trial (for Mac) | Free | one-time |
| Soulver 4 for iPhone (upgrade) | $7.49 | one-time |
| Soulver 3 for iPhone | $14.00 | one-time |
| Soulver 4 for iPhone | $15.00 | one-time |
| Soulver 3 for iPad | $20.00 | one-time |
| Soulver 4 (Upgrade from Soulver 3) | $29.00 | one-time |
| Soulver 4 (Promotion) | $39.00 | one-time |
| Soulver 3 for Mac | $39.00 | one-time |
| Soulver 4 | $54.00 | one-time |
| Soulver 4 | $59.00 | one-time |

**What reviewers like**

- 💻 Powerful calculation tool
- 📝 Seamless note-taking integration
- 🔢 Intuitive natural language input
- 🗂️ Organized folder and sheet management
- ⚙️ Extensive unit conversion capabilities

**What reviewers complain about**

- 💰 Expensive one-time purchase price
- 🔁 Separate purchases for Mac, iPad, and iPhone
- 🤖 AI integration requires additional subscription
- 🐛 Occasional crashes and bugs reported
- 📊 Limited spreadsheet-like functionality

**Reported bugs**

- Crashes when using certain emojis in sheet titles
- Issues with iCloud sync and data migration from older versions
- Inconsistent behavior when modifying variables and formulas

**Requested features**

- Improved iPad and iPhone UI/UX
- Enhanced data export and sharing options
- More advanced mathematical and scientific functions
- Ability to define custom units and unit conversions


### PDF Squeezer

[App page](https://appshunter.io/ios/app/pdf-squeezer/id6478766883)

Reduce PDF file sizes on your iPhone or iPad with customizable compression settings. Preview changes before saving and process files securely offline. Automate tasks with iOS Shortcuts integration and compress multiple files at once.

**Highlights:** Customizable compression settings, Preview compressed PDFs, Offline, on-device processing, iOS Shortcuts integration, Batch compression

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $9.99 | one-time |


## Frequently asked questions

### Is Soulver 4 free?

Soulver 4 is free to download, with in-app purchases available.

### Is PDF Squeezer free?

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

### Which has better reviews, Soulver 4 or PDF Squeezer?

Soulver 4 is rated higher. Soulver 4 averages 4.9 out of 5 from 429 ratings, while PDF Squeezer averages 4.8 from 22 ratings.

### Do Soulver 4 or PDF Squeezer have ads?

Neither Soulver 4 nor PDF Squeezer shows ads.

### Which is updated more often, Soulver 4 or PDF Squeezer?

Soulver 4 ships an update monthly, and PDF Squeezer monthly. Most recently, Soulver 4 was updated on October 17, 2026 and PDF Squeezer on October 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.*