# Call3 vs Rainbow Hospitals

The clearest difference is update cadence: Call3 at every 11 days against Rainbow Hospitals's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

Call3 ships an update every 11 days, Rainbow Hospitals every 5 weeks. The most recent releases landed on October 14, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Call3 | Rainbow Hospitals |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 5 weeks |
| Monetization | — | Free |
| Size | 23 MB | 72 MB |
| Requires iOS | **12.4** | 13.4 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Route 66 Pte Ltd](https://appshunter.io/developer/1706452219) | [RAINBOW CHILDRENS MEDICARE LIMITED](https://appshunter.io/developer/1882956081) |

## What reviewers say

### Call3

[App page](https://appshunter.io/ios/app/call3/id6465133257)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rainbow Hospitals

[App page](https://appshunter.io/ios/app/rainbow-hospitals/id6760179478)

Manage your healthcare conveniently from your mobile device. Book appointments, access medical records, and communicate securely with doctors. Receive timely reminders and access prescriptions and reports digitally.

**Highlights:** Book & manage appointments, Access medical records, Doctor communication (chat/video), Digital prescriptions & reports, Notifications & reminders, Secure & private health data

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

**In-app purchases:** none


## Frequently asked questions

### Is Call3 free?

Call3 is free to download, with no in-app purchases.

### Is Rainbow Hospitals free?

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

### Do Call3 or Rainbow Hospitals have ads?

Neither Call3 nor Rainbow Hospitals shows ads.

### Which is updated more often, Call3 or Rainbow Hospitals?

Call3 ships an update every 11 days, and Rainbow Hospitals every 5 weeks. Most recently, Call3 was updated on October 14, 2026 and Rainbow Hospitals on October 28, 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.*