# DuoBalance vs Studio EJB

The clearest difference is iOS requirement: Studio EJB at 13.0 against DuoBalance's 16.4. On price, update cadence, ads and in-app purchases there is nothing between them.

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

DuoBalance ships an update every 4 months, Studio EJB every 7 months. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | DuoBalance | Studio EJB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Size | 84 MB | 195 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Duo Balance](https://appshunter.io/developer/1896682342) | [Errol John Haecker](https://appshunter.io/developer/1784217803) |

## What reviewers say

### DuoBalance

[App page](https://appshunter.io/ios/app/duobalance/id6737346743)

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

**In-app purchases:** none


### Studio EJB

[App page](https://appshunter.io/ios/app/studio-ejb/id6739207357)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DuoBalance free?

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

### Is Studio EJB free?

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

### Do DuoBalance or Studio EJB have ads?

Neither DuoBalance nor Studio EJB shows ads.

### Which is updated more often, DuoBalance or Studio EJB?

DuoBalance ships an update every 4 months, and Studio EJB every 7 months. Most recently, DuoBalance was updated on September 10, 2026 and Studio EJB on September 18, 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.*