# Amount Plus vs Soulver 4

The clearest difference is price: Soulver 4 at Free against Amount Plus's $0.90. Soulver 4 also leads on rating (4.9 vs 4.3) and review sentiment (76% vs 61%). Amount Plus's advantage is in-app purchases (none vs 10) and iOS requirement (9.0 vs 17.6). On update cadence, ads, monetization model and device support there is nothing between them.

Soulver 4 is free to download; Amount Plus costs $0.90 up front. Soulver 4 sells 10 in-app purchases, starting at $26.00 per year. Amount Plus asks for nothing beyond the download.

Soulver 4 holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 96 and 437 respectively. Written reviews point the same way: 61% of Amount Plus's written reviews are positive against 76% of Soulver 4's.

Both ship on a similar rhythm, roughly monthly. Both last shipped on November 11, 2026.

## The numbers

| Metric | Amount Plus | Soulver 4 |
| --- | --- | --- |
| Price | $0.90 | **Free** |
| Rating | [4.3 (96 ratings)](https://appshunter.io/ios/app/amount-plus-unit-converter/id1031021466/reviews) | **[4.9 (437 ratings)](https://appshunter.io/ios/app/soulver-4/id1508732804/reviews)** |
| Number of ratings | 96 | **437** |
| Positive reviews | 61.2% of reviews | **76.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Paid | Paid |
| Size | 7 MB | 40 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Marco Torretta](https://appshunter.io/developer/560750786) | [Zac Cohan](https://appshunter.io/developer/1508732803) |

## What reviewers say

### Amount Plus

[App page](https://appshunter.io/ios/app/amount-plus-unit-converter/id1031021466)

This app offers an enhanced unit conversion experience with a beautiful interface and extensive customization. It provides over 700 units across 30 categories, advanced search and filtering, and shortcuts for quick conversions. It also supports widgets and Apple Watch for convenient access.

**Highlights:** Over 700 units in 30+ categories, Advanced search, filter, and compare, Customizable shortcuts for fast conversions, User-definable custom units, Today widget and Apple Watch support, Gorgeous, user-friendly interface

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### 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, iPhone Duo support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Assistant, Stocks & Weather | $26.00 | per year |
| 60-day free trial (for iPad) | Free | one-time |
| 60-day free trial (for Mac) | Free | 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 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


## Frequently asked questions

### Is Amount Plus free?

Amount Plus costs $0.90, with no in-app purchases.

### Is Soulver 4 free?

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

### Which has better reviews, Amount Plus or Soulver 4?

Soulver 4 is rated higher. Amount Plus averages 4.3 out of 5 from 96 ratings, while Soulver 4 averages 4.9 from 437 ratings.

### Do Amount Plus or Soulver 4 have ads?

Neither Amount Plus nor Soulver 4 shows ads.

### Which is updated more often, Amount Plus or Soulver 4?

Amount Plus ships an update monthly, and Soulver 4 monthly. Most recently, Amount Plus was updated on November 11, 2026 and Soulver 4 on November 11, 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.*