# Bank Builder vs ISB Digital ID

The clearest difference is in-app purchases: ISB Digital ID at none against Bank Builder's 1. ISB Digital ID also leads on update cadence (every 3 months vs every 22 months). Bank Builder's advantage is iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Bank Builder sells 1 one-off in-app purchase. ISB Digital ID asks for nothing beyond the download.

Bank Builder ships an update every 22 months, ISB Digital ID every 3 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Bank Builder | ISB Digital ID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/bank-builder/id1602658005/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 23 MB | 7 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Magnus Orn Gylfason](https://appshunter.io/developer/1536385452) | [International School of the Basel Region AG](https://appshunter.io/developer/1792144038) |

## What reviewers say

### Bank Builder

[App page](https://appshunter.io/ios/app/bank-builder/id1602658005)

This utility app assists players in constructing a bank of a specific amount for 18xx board games. It's designed to streamline the process of managing in-game finances.

**Highlights:** Build bank of specific amount, Designed for 18xx board games, Chipset financial management, Free to use

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a coffee | $3.99 | one-time |


### ISB Digital ID

[App page](https://appshunter.io/ios/app/isb-digital-id/id6743163139)

**In-app purchases:** none


## Frequently asked questions

### Is Bank Builder free?

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

### Is ISB Digital ID free?

ISB Digital ID is free to download, with no in-app purchases.

### Do Bank Builder or ISB Digital ID have ads?

Neither Bank Builder nor ISB Digital ID shows ads.

### Which is updated more often, Bank Builder or ISB Digital ID?

Bank Builder ships an update every 22 months, and ISB Digital ID every 3 months. Most recently, Bank Builder was updated on October 24, 2026 and ISB Digital ID on October 25, 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.*