# SubQ Calc vs Protokit

The clearest difference is in-app purchases: SubQ Calc at none against Protokit's 1. Protokit's advantage is update cadence (every 6 days vs every 6 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Protokit sells 1 one-off in-app purchase. SubQ Calc asks for nothing beyond the download.

SubQ Calc ships an update every 6 weeks, Protokit every 6 days. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SubQ Calc | Protokit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/protokit-peptide-tracker/id6781553885/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 0 MB | 50 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [OLIVER JAMES MORRIS](https://appshunter.io/developer/1886614962) | [Niklas Almstedt](https://appshunter.io/developer/6781553887) |

## What reviewers say

### SubQ Calc

[App page](https://appshunter.io/ios/app/subq-calc-reconstitution/id6762636601)

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

**In-app purchases:** none


### Protokit

[App page](https://appshunter.io/ios/app/protokit-peptide-tracker/id6781553885)

Log and track peptide cycles, doses, and vials with a powerful, clean interface. Features include a reconstitution calculator, smart scheduling with reminders, and detailed statistics on adherence and progress. Integrates with BodyMetrics for correlating lab results with your protocol.

**Highlights:** Track peptides, blends, pre-mixed vials, and tablets, Reconstitution calculator for accurate dosing, Smart scheduling with custom reminders, Detailed statistics on adherence and progress, Injection site logging with rotation reminders, BodyMetrics integration for lab data correlation, Customizable themes and views

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pep Tracker Pro – Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is SubQ Calc free?

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

### Is Protokit free?

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

### Do SubQ Calc or Protokit have ads?

Neither SubQ Calc nor Protokit shows ads.

### Which is updated more often, SubQ Calc or Protokit?

SubQ Calc ships an update every 6 weeks, and Protokit every 6 days. Most recently, SubQ Calc was updated on October 18, 2026 and Protokit on October 7, 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.*