# Drop vs KINETIC

Drop and KINETIC 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. Drop sells 2 in-app purchases, starting at $1.99 per month and KINETIC sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Drop ships an update weekly, KINETIC every 5 days. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Drop | KINETIC |
| --- | --- | --- |
| 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 5 days** |
| Monetization | Free | — |
| Size | 53 MB | 4 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Douglas Kilby](https://appshunter.io/developer/1563786215) | [Shau Bo Hsu](https://appshunter.io/developer/6785527170) |

## 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 |


### KINETIC

[App page](https://appshunter.io/ios/app/kinetic-zone-2-vo2-max/id6785527168)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Development | $0.99 | one-time |
| Support Development | $2.99 | one-time |
| Support Development | $9.99 | one-time |


## Frequently asked questions

### Is Drop free?

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

### Is KINETIC free?

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

### Do Drop or KINETIC have ads?

Neither Drop nor KINETIC shows ads.

### Which is updated more often, Drop or KINETIC?

Drop ships an update weekly, and KINETIC every 5 days. Most recently, Drop was updated on October 13, 2026 and KINETIC on October 16, 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.*