# NullTrace vs A2O Portfolio

The clearest difference is iOS requirement: NullTrace at 13.0 against A2O Portfolio's 15.0. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | NullTrace | A2O Portfolio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Daily | — |
| Size | 51 MB | 14 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [NullTrace LLC](https://appshunter.io/developer/1872799837) | [Strategy Trader Inc.](https://appshunter.io/developer/6786782067) |

## What reviewers say

### NullTrace

[App page](https://appshunter.io/ios/app/nulltrace/id6758411859)

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

**In-app purchases:** none


### A2O Portfolio

[App page](https://appshunter.io/ios/app/a2o-portfolio/id6808702020)

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

**In-app purchases:** none


## Frequently asked questions

### Is NullTrace free?

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

### Is A2O Portfolio free?

A2O Portfolio is free to download, with no in-app purchases.

### Do NullTrace or A2O Portfolio have ads?

Neither NullTrace nor A2O Portfolio shows ads.

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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.*