# Docterz vs KOEL iGreen

The clearest difference is review sentiment: Docterz at 100% against KOEL iGreen's 0%. Docterz also leads on iOS requirement (14.0 vs 18.0). 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.

Docterz ships an update every 3 weeks, KOEL iGreen monthly. The most recent releases landed on September 5, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Docterz | KOEL iGreen |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 137 MB | 24 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [The Pediatric Network](https://appshunter.io/developer/1151744713) | [Tor.ai Limited](https://appshunter.io/developer/1288507527) |

## What reviewers say

### Docterz

[App page](https://appshunter.io/ios/app/docterz/id1413185878)

This app provides business insights for medical professionals using data analytics from prescriptions, patient engagement, and clinic management. It helps doctors build and sustain their practices by leveraging technology and medical science.

**Highlights:** Practice management workflows, Patient engagement tools, Prescription data analytics, Business insights, Clinic management

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

**In-app purchases:** none


### KOEL iGreen

[App page](https://appshunter.io/ios/app/koel-igreen/id1481347446)

Monitor machine health, receive critical alarms, and manage preventive maintenance schedules. This app works with a 'Plug and Play' device that connects directly to your machine's harness for real-time data.

**Highlights:** Machine health performance monitoring, Machine alarms and trips alerts, Preventive maintenance scheduling, Plug and Play device integration, Real-time data monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Docterz free?

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

### Is KOEL iGreen free?

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

### Do Docterz or KOEL iGreen have ads?

Neither Docterz nor KOEL iGreen shows ads.

### Which is updated more often, Docterz or KOEL iGreen?

Docterz ships an update every 3 weeks, and KOEL iGreen monthly. Most recently, Docterz was updated on September 5, 2026 and KOEL iGreen on June 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.*