# Drop vs Protocol Tracker

The clearest difference is iOS requirement: Drop at 18.0 against Protocol Tracker's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Drop sells 2 in-app purchases, starting at $1.99 per month and Protocol Tracker sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Drop ships an update weekly, Protocol Tracker every 2 weeks. The most recent releases landed on August 3, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Drop | Protocol Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/drop-injection-tracker/id6748859148/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free | — |
| Size | 37 MB | 20 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Douglas Kilby](https://appshunter.io/developer/1563786215) | [Mc Pol Cruz](https://appshunter.io/developer/1884728788) |

## What reviewers say

### Drop

[App page](https://appshunter.io/ios/app/drop-injection-tracker/id6748859148)

This app helps individuals who self-inject medication manage their treatment by tracking injection sites and ensuring proper rotation. It prevents overuse of specific sites to avoid damage and maintain medication effectiveness. All data is stored locally for privacy and offline use.

**Highlights:** Visual injection site map, Track injection date, time, dose, location, Automatic site rotation, Full injection history, Cooldown tracking, Add notes to injections

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Drop Insight Monthly | $1.99 | per month |
| Drop Insight Yearly | $9.99 | per year |


### Protocol Tracker

[App page](https://appshunter.io/ios/app/protocol-tracker-dosefi/id6760504673)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $34.99 | per year |


## Frequently asked questions

### Is Drop free?

Drop is free to download, with in-app purchases available.

### Is Protocol Tracker free?

Protocol Tracker is free to download, with in-app purchases available.

### Do Drop or Protocol Tracker have ads?

Neither Drop nor Protocol Tracker shows ads.

### Which is updated more often, Drop or Protocol Tracker?

Drop ships an update weekly, and Protocol Tracker every 2 weeks. Most recently, Drop was updated on August 3, 2026 and Protocol Tracker on September 14, 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.*