# Victoria 3 Toolbox vs String Tension Calc

The clearest difference is update cadence: String Tension Calc at every 3 weeks against Victoria 3 Toolbox's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Victoria 3 Toolbox sells 1 one-off in-app purchase and String Tension Calc sells 4 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Victoria 3 Toolbox ships an update every 2 months, String Tension Calc every 3 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Victoria 3 Toolbox | String Tension Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 69 MB | 44 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [帆 胡](https://appshunter.io/developer/1699269059) | [Vasilii Polovnikov](https://appshunter.io/developer/1716165883) |

## What reviewers say

### Victoria 3 Toolbox

[App page](https://appshunter.io/ios/app/victoria-3-toolbox/id6746978402)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $2.99 | one-time |


### String Tension Calc

[App page](https://appshunter.io/ios/app/string-tension-calc/id6792709631)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | per 7 days |
| Premium | $3.99 | per month |
| Premium | $5.99 | per year |
| Lifetime | $7.99 | one-time |


## Frequently asked questions

### Is Victoria 3 Toolbox free?

Victoria 3 Toolbox is free to download, with in-app purchases available.

### Is String Tension Calc free?

String Tension Calc is free to download, with in-app purchases available.

### Do Victoria 3 Toolbox or String Tension Calc have ads?

Neither Victoria 3 Toolbox nor String Tension Calc shows ads.

### Which is updated more often, Victoria 3 Toolbox or String Tension Calc?

Victoria 3 Toolbox ships an update every 2 months, and String Tension Calc every 3 weeks. Most recently, Victoria 3 Toolbox was updated on October 28, 2026 and String Tension Calc on October 31, 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.*