# Integrity Index vs PolySim

The clearest difference is price: Integrity Index at Free against PolySim's $0.99. Integrity Index also leads on rating (4.9 vs 1.0) and ratings volume (292 vs 1). PolySim's advantage is chart position (#25 vs unranked). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Integrity Index is free to download; PolySim costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Integrity Index holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: Integrity Index has 292 ratings behind it against 1, so its average is the more settled of the two.

Integrity Index ships an update every 4 days, PolySim every 3 days. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Integrity Index | PolySim |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.9 (292 ratings)](https://appshunter.io/ios/app/integrity-index/id6760370782/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/polysim-polymarket-simulator/id6764646608/reviews) |
| Number of ratings | **292** | 1 |
| Positive reviews | 91.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | Free | Free |
| Best chart rank | — | **#25** |
| Size | 55 MB | 2 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Political Integrity Project](https://appshunter.io/developer/1884158803) | [Matthew Moffat](https://appshunter.io/developer/1837352590) |

## What reviewers say

### Integrity Index

[App page](https://appshunter.io/ios/app/integrity-index/id6760370782)

Track the personal and political finances of U.S. Congressional candidates. Explore the influence of big money in elections and view stock trades by members of Congress. Data is sourced from FEC and public ethics disclosures.

**Highlights:** Track Congressional candidate finances, Explore election money influence, View member of Congress stock trades, Data from FEC and ethics disclosures

**Features:** macOS Compatibility

**In-app purchases:** none


### PolySim

[App page](https://appshunter.io/ios/app/polysim-polymarket-simulator/id6764646608)

**Currently charting:** #25 Top Paid · News (US App Store)

Practice trading on prediction markets without any financial risk. This simulator allows you to test your instincts on various event markets using virtual money. Learn about market dynamics and improve your trading strategies in a clean, fast interface.

**Highlights:** Virtual cash balance, Trade Yes/No outcomes, Real-time profit/loss tracking, Build multi-category positions, Monitor portfolio performance, Explore diverse event categories, Fast, clean interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Integrity Index free?

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

### Is PolySim free?

PolySim costs $0.99, with no in-app purchases.

### Which has better reviews, Integrity Index or PolySim?

Integrity Index is rated higher. Integrity Index averages 4.9 out of 5 from 292 ratings, while PolySim averages 1.0 from 1 ratings.

### Do Integrity Index or PolySim have ads?

Neither Integrity Index nor PolySim shows ads.

### Which is updated more often, Integrity Index or PolySim?

Integrity Index ships an update every 4 days, and PolySim every 3 days. Most recently, Integrity Index was updated on October 13, 2026 and PolySim on October 5, 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.*