# Oncall for Interns vs Thinksulin

The clearest difference is price: Thinksulin at Free against Oncall for Interns's $2.99. Oncall for Interns's advantage is update cadence (every 4 days vs every 9 months) and iOS requirement (15.0 vs 17.2). On ads, in-app purchases and device support there is nothing between them.

Thinksulin is free to download; Oncall for Interns costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Oncall for Interns ships an update every 4 days, Thinksulin every 9 months. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Oncall for Interns | Thinksulin |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 9 months |
| Monetization | Paid | — |
| Size | 4 MB | 7 MB |
| Requires iOS | **15.0** | 17.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Omid Nazifi](https://appshunter.io/developer/1208952331) | [Agency for Clinical Innovation](https://appshunter.io/developer/777216626) |

## What reviewers say

### Oncall for Interns

[App page](https://appshunter.io/ios/app/oncall-for-interns/id1212179554)

A medical guide for junior doctors, offering quick access to common on-call scenarios. It details causes, examinations, investigations, and management for nurse calls.

**Highlights:** Common on-call situations, Causes of calls, Examination guidelines, Investigation protocols, Management strategies

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

**In-app purchases:** none


### Thinksulin

[App page](https://appshunter.io/ios/app/thinksulin/id1359457527)

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

**In-app purchases:** none


## Frequently asked questions

### Is Oncall for Interns free?

Oncall for Interns costs $2.99, with no in-app purchases.

### Is Thinksulin free?

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

### Do Oncall for Interns or Thinksulin have ads?

Neither Oncall for Interns nor Thinksulin shows ads.

### Which is updated more often, Oncall for Interns or Thinksulin?

Oncall for Interns ships an update every 4 days, and Thinksulin every 9 months. Most recently, Oncall for Interns was updated on September 21, 2026 and Thinksulin on September 24, 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.*