# Check US Visa Slots vs C4T

The clearest difference is device support: Check US Visa Slots at 4 against C4T's 2. 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.

Check US Visa Slots ships an update every 3 weeks, C4T every 4 weeks. The most recent releases landed on October 24, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Check US Visa Slots | C4T |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (274 ratings)](https://appshunter.io/ios/app/check-us-visa-slots/id1628965248/reviews)** | — |
| Number of ratings | **274** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | Free | — |
| Size | 38 MB | 31 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TWIPPY TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/1643138815) | [Cloud4Things Technologies Private Limited](https://appshunter.io/developer/1711576065) |

## What reviewers say

### Check US Visa Slots

[App page](https://appshunter.io/ios/app/check-us-visa-slots/id1628965248)

This app helps US visa applicants find appointment openings at consulates worldwide. It uses crowdsourced data and real-time updates from other users to show availability for various visa types. Users can also set up alerts for when appointments become available.

**Highlights:** Crowdsourced slot availability data, Real-time updates from users, Visibility into F-1, H-1B, B1/B2 visa slots, Time-saving trend analysis, Customizable appointment opening alerts

**Features:** Safari Extension

**In-app purchases:** none


### C4T

[App page](https://appshunter.io/ios/app/c4t/id6449336503)

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

**In-app purchases:** none


## Frequently asked questions

### Is Check US Visa Slots free?

Check US Visa Slots is free to download, with no in-app purchases.

### Is C4T free?

C4T is free to download, with no in-app purchases.

### Do Check US Visa Slots or C4T have ads?

Neither Check US Visa Slots nor C4T shows ads.

### Which is updated more often, Check US Visa Slots or C4T?

Check US Visa Slots ships an update every 3 weeks, and C4T every 4 weeks. Most recently, Check US Visa Slots was updated on October 24, 2026 and C4T on October 1, 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.*