# Congress Vote Tracker vs Cairn

The clearest difference is in-app purchases: Cairn at none against Congress Vote Tracker's 4. Cairn also leads on update cadence (every 10 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Congress Vote Tracker sells 4 in-app purchases, starting at $5.99 per month. Cairn asks for nothing beyond the download.

Congress Vote Tracker ships an update every 3 weeks, Cairn every 10 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Congress Vote Tracker | Cairn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (141 ratings)](https://appshunter.io/ios/app/congress-vote-tracker/id6445804489/reviews)** | — |
| Number of ratings | **141** | — |
| Positive reviews | 41.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 119 MB | 71 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Morgan Zellers](https://appshunter.io/developer/1651985906) | [Anurag Nagilla](https://appshunter.io/developer/6792871630) |

## What reviewers say

### Congress Vote Tracker

[App page](https://appshunter.io/ios/app/congress-vote-tracker/id6445804489)

This app allows users to track the voting records of members of Congress and follow bills of interest. Gain insights into legislative decisions and understand the impact of proposed laws. Empower yourself to engage in democratic processes.

**Highlights:** Track voting records, Follow bills of interest, View member profiles, Access bill information, See legislator insights

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $5.99 | per month |
| Yearly Access | $24.99 | per year |
| Donate | $1.99 | one-time |
| Alternate App Icons | $3.99 | one-time |


### Cairn

[App page](https://appshunter.io/ios/app/cairn-ai-archive/id6792871628)

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

**In-app purchases:** none


## Frequently asked questions

### Is Congress Vote Tracker free?

Congress Vote Tracker is free to download, with in-app purchases available.

### Is Cairn free?

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

### Do Congress Vote Tracker or Cairn have ads?

Neither Congress Vote Tracker nor Cairn shows ads.

### Which is updated more often, Congress Vote Tracker or Cairn?

Congress Vote Tracker ships an update every 3 weeks, and Cairn every 10 days. Most recently, Congress Vote Tracker was updated on November 7, 2026 and Cairn on October 31, 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.*