# ZeroSigma vs IWB Terminal

The clearest difference is update cadence: IWB Terminal at every 4 days against ZeroSigma's monthly. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ZeroSigma sells 2 in-app purchases, starting at $79.00 per month and IWB Terminal sells 1 in-app purchase, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for ZeroSigma against 5.0 for IWB Terminal. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

ZeroSigma ships an update monthly, IWB Terminal every 4 days. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ZeroSigma | IWB Terminal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/zerosigma/id6762913916/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/iwb-terminal/id6807198902/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 31 MB | 2 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ZeroSigma](https://appshunter.io/developer/1895074107) | [Brandon Arnett](https://appshunter.io/developer/6807198904) |

## What reviewers say

### ZeroSigma

[App page](https://appshunter.io/ios/app/zerosigma/id6762913916)

This app provides real-time options analytics for traders, focusing on dealer positioning and market structure. It tracks key exposure metrics and strike-level positioning to help understand potential price influences. The mobile interface offers a fast and focused way to monitor market data on the go.

**Highlights:** Real-time exposure metrics, Strike-level positioning insights, SPX/SPY dealer positioning, Fast mobile interface, Secure account access, Options flow and volume tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZeroSigma Premium | $79.00 | per month |
| ZeroSigma Premium | $699.00 | per year |


### IWB Terminal

[App page](https://appshunter.io/ios/app/iwb-terminal/id6807198902)

Visualize your investment portfolio with clear explanations of positions, coverage, and risk. Includes an educational simulator to explore scenarios without affecting real accounts. Requires an IWB Terminal account.

**Highlights:** Portfolio positions in plain English, Coverage and risk explained, Allocation at a glance, Scenario simulation tool, Educational content on finance, Clear risk assessment

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IWB Terminal Membership | $8.99 | per month |


## Frequently asked questions

### Is ZeroSigma free?

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

### Is IWB Terminal free?

IWB Terminal is free to download, with in-app purchases available.

### Which has better reviews, ZeroSigma or IWB Terminal?

ZeroSigma and IWB Terminal are both rated 5.0 out of 5 on the App Store, from 3 and 4 ratings respectively.

### Do ZeroSigma or IWB Terminal have ads?

Neither ZeroSigma nor IWB Terminal shows ads.

### Which is updated more often, ZeroSigma or IWB Terminal?

ZeroSigma ships an update monthly, and IWB Terminal every 4 days. Most recently, ZeroSigma was updated on October 23, 2026 and IWB Terminal on October 24, 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.*