# ShotCheck vs Protodose

The clearest difference is in-app purchases: ShotCheck at none against Protodose's 2. ShotCheck also leads on update cadence (every 10 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Protodose sells 2 in-app purchases, starting at $4.99 per month. ShotCheck asks for nothing beyond the download.

ShotCheck ships an update every 10 days, Protodose every 3 months. The most recent releases landed on October 6, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | ShotCheck | Protodose |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 months |
| Size | 15 MB | 30 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Nianci Zhong](https://appshunter.io/developer/6772027559) | [Pinak Faldu](https://appshunter.io/developer/1850148588) |

## What reviewers say

### ShotCheck

[App page](https://appshunter.io/ios/app/shotcheck-peptide-tracker/id6772027557)

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

**In-app purchases:** none


### Protodose

[App page](https://appshunter.io/ios/app/protodose-peptide-tracker/id6775407351)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full App Access | $4.99 | per month |
| Full App Access | $39.99 | per year |


## Frequently asked questions

### Is ShotCheck free?

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

### Is Protodose free?

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

### Do ShotCheck or Protodose have ads?

Neither ShotCheck nor Protodose shows ads.

### Which is updated more often, ShotCheck or Protodose?

ShotCheck ships an update every 10 days, and Protodose every 3 months. Most recently, ShotCheck was updated on October 6, 2026 and Protodose on October 18, 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.*