# Balla Balla vs Digit Invader Calculator

Balla Balla and Digit Invader Calculator are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Balla Balla ships an update every 5 days, Digit Invader Calculator every 9 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Balla Balla | Digit Invader Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (12 ratings)](https://appshunter.io/ios/app/digit-invader-calculator/id6743176325/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 9 days |
| Monetization | — | Free |
| Size | 1 MB | 5 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [DanLo Interactive](https://appshunter.io/developer/530648072) | [Daniel Fu Keung Kwan](https://appshunter.io/developer/1801804499) |

## What reviewers say

### Balla Balla

[App page](https://appshunter.io/ios/app/balla-balla/id6740024721)

**In-app purchases:** none


### Digit Invader Calculator

[App page](https://appshunter.io/ios/app/digit-invader-calculator/id6743176325)

This app combines a functional calculator with a retro arcade game inspired by classic calculator interfaces. It offers automatic game saving, a high score list, and multitasking support on iPads. A scaled-down version is also available for Apple Watch.

**Highlights:** Retro calculator game, Basic calculator functions, Automatic game save, High score list, iPad Stage Manager support, Apple Watch version

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

**In-app purchases:** none


## Frequently asked questions

### Is Balla Balla free?

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

### Is Digit Invader Calculator free?

Digit Invader Calculator is free to download, with no in-app purchases.

### Do Balla Balla or Digit Invader Calculator have ads?

Neither Balla Balla nor Digit Invader Calculator shows ads.

### Which is updated more often, Balla Balla or Digit Invader Calculator?

Balla Balla ships an update every 5 days, and Digit Invader Calculator every 9 days. Most recently, Balla Balla was updated on October 25, 2026 and Digit Invader Calculator on October 28, 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.*