# Milligram vs OnePin

The clearest difference is review sentiment: OnePin at 100% against Milligram's 58%. OnePin also leads on rating (5.0 vs 4.7) and iOS requirement (15.0 vs 17.0). Milligram's advantage is ratings volume (541 vs 7). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Milligram sells 3 in-app purchases, starting at $17.49 per month and OnePin sells 1 in-app purchase, starting at $49.99 per year. Whichever you choose, the download price is not the number that matters.

OnePin holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Milligram has 541 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 58% of Milligram's written reviews are positive against 100% of OnePin's.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Milligram | OnePin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (541 ratings)](https://appshunter.io/ios/app/milligram-peptide-tracker/id6759593151/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/onepin-trt-and-peptide-tracker/id6767091719/reviews)** |
| Number of ratings | **541** | 7 |
| Positive reviews | 58.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | Free with in-app purchases | Freemium |
| Size | 171 MB | 83 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Milligram Health Pty Ltd](https://appshunter.io/developer/6821805255) | [James Lee](https://appshunter.io/developer/1893536737) |

## What reviewers say

### Milligram

[App page](https://appshunter.io/ios/app/milligram-peptide-tracker/id6759593151)

Optimize your health and performance with science-backed data. Track peptide levels, analyze bloodwork, and monitor progress with intelligent insights. Get personalized feedback on your protocol and health metrics.

**Highlights:** Intelligent protocol analysis, Compound level tracking, Bloodwork analysis and biomarker flagging, Comprehensive compound library, Progress scans for body composition, Stack analytics and interaction flagging, Journaling for health metrics, Reconstitution calculator

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Milligram Pro | $17.49 | per month |
| Milligram Pro | $49.99 | per year |
| Milligram Pro | $69.99 | per year |


### OnePin

[App page](https://appshunter.io/ios/app/onepin-trt-and-peptide-tracker/id6767091719)

This app helps users meticulously track complex peptide and supplement protocols. It offers smart syringe grouping, phase-aware dose calculations, vial life management, and inventory tracking. Features include a body map injection site tracker and protocol templates for research peptide users and biohackers.

**Highlights:** Complex protocol tracking, Smart syringe grouping, Phase-aware dose calculations, Vial life and supply forecasting, Inventory management, Body map injection site tracker, Protocol templates

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OnePin Premium (Annual) | $49.99 | per year |


## Frequently asked questions

### Is Milligram free?

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

### Is OnePin free?

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

### Which has better reviews, Milligram or OnePin?

OnePin is rated higher. Milligram averages 4.7 out of 5 from 541 ratings, while OnePin averages 5.0 from 7 ratings.

### Do Milligram or OnePin have ads?

Neither Milligram nor OnePin shows ads.

### Which is updated more often, Milligram or OnePin?

Milligram ships an update every 5 days, and OnePin every 5 days. Most recently, Milligram was updated on November 5, 2026 and OnePin on October 31, 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.*