# Chemistry in the Cloud™ vs selfCheckIn

Chemistry in the Cloud™ and selfCheckIn are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Chemistry in the Cloud™ ships an update every 3 weeks, selfCheckIn monthly. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Chemistry in the Cloud™ | selfCheckIn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/selfcheckin/id1478028021/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Free |
| Size | 11 MB | 21 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oxygen Healthcare Research Private Limited](https://appshunter.io/developer/1303437227) | [Beerent d.o.o.](https://appshunter.io/developer/1636536528) |

## What reviewers say

### Chemistry in the Cloud™

[App page](https://appshunter.io/ios/app/chemistry-in-the-cloud/id1303437228)

**Features:** macOS Compatibility

**In-app purchases:** none


### selfCheckIn

[App page](https://appshunter.io/ios/app/selfcheckin/id1478028021)

This app streamlines the check-in process for travelers and hosts. Guests can self-register using a QR code, and travelers can scan travel documents for easy registration with the Tourist Board.

**Highlights:** Self-service guest check-in, QR code registration, Travel document scanning, Tourist Board registration, Time-saving for hosts and guests

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chemistry in the Cloud™ free?

Chemistry in the Cloud™ is free to download, with no in-app purchases.

### Is selfCheckIn free?

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

### Do Chemistry in the Cloud™ or selfCheckIn have ads?

Neither Chemistry in the Cloud™ nor selfCheckIn shows ads.

### Which is updated more often, Chemistry in the Cloud™ or selfCheckIn?

Chemistry in the Cloud™ ships an update every 3 weeks, and selfCheckIn monthly. Most recently, Chemistry in the Cloud™ was updated on October 6, 2026 and selfCheckIn on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*