# Soulver 4 vs Arkitek

The clearest difference is update cadence: Arkitek at every 4 days against Soulver 4's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Soulver 4 sells 10 in-app purchases, starting at $26.00 per year and Arkitek sells 1 in-app purchase, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Soulver 4 ships an update monthly, Arkitek every 4 days. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Soulver 4 | Arkitek |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (436 ratings)](https://appshunter.io/ios/app/soulver-4/id1508732804/reviews)** | — |
| Number of ratings | **436** | — |
| Positive reviews | 76.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Paid | — |
| Size | 40 MB | 8 MB |
| Requires iOS | **17.6** | 18.2 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zac Cohan](https://appshunter.io/developer/1508732803) | [Angel Geoffroy](https://appshunter.io/developer/1794193605) |

## 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, 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


### Arkitek

[App page](https://appshunter.io/ios/app/arkitek/id6741438877)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Abonnement Mensuel Arkitek | $12.99 | per month |


## Frequently asked questions

### Is Soulver 4 free?

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

### Is Arkitek free?

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

### Do Soulver 4 or Arkitek have ads?

Neither Soulver 4 nor Arkitek shows ads.

### Which is updated more often, Soulver 4 or Arkitek?

Soulver 4 ships an update monthly, and Arkitek every 4 days. Most recently, Soulver 4 was updated on November 7, 2026 and Arkitek on November 8, 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.*