# Bank Builder vs Calcu

The clearest difference is rating: Calcu at 5.0 against Bank Builder's 4.0. Calcu also leads on in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 22 months). On price, ads, monetization model and device support there is nothing between them.

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

Calcu holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Bank Builder ships an update every 22 months, Calcu every 6 weeks. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Bank Builder | Calcu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/bank-builder/id1602658005/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/calcu-gator/id6761209063/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 23 MB | 16 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Magnus Orn Gylfason](https://appshunter.io/developer/1536385452) | [Joe Watson](https://appshunter.io/developer/1888278003) |

## 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 |


### Calcu

[App page](https://appshunter.io/ios/app/calcu-gator/id6761209063)

This unofficial player aid assists with hit calculations for robot battle games. Easily input values, sum categories, and calculate hit probability based on dice rolls. Customize your experience with multiple color options.

**Highlights:** Input values for categories and robots, Sum all category values, Calculate hit probability, 2d6 dice roll simulation, Multiple color themes

**In-app purchases:** none


## Frequently asked questions

### Is Bank Builder free?

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

### Is Calcu free?

Calcu is free to download, with no in-app purchases.

### Which has better reviews, Bank Builder or Calcu?

Calcu is rated higher. Bank Builder averages 4.0 out of 5 from 1 ratings, while Calcu averages 5.0 from 3 ratings.

### Do Bank Builder or Calcu have ads?

Neither Bank Builder nor Calcu shows ads.

### Which is updated more often, Bank Builder or Calcu?

Bank Builder ships an update every 22 months, and Calcu every 6 weeks. Most recently, Bank Builder was updated on October 24, 2026 and Calcu on October 7, 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.*