# Milligram vs Caliper

The clearest difference is review sentiment: Caliper at 100% against Milligram's 58%. Caliper also leads on in-app purchases (none vs 4) and rating (5.0 vs 4.7). Milligram's advantage is ratings volume (419 vs 1) and update cadence (every 5 days vs every 10 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Milligram sells 3 in-app purchases, starting at $17.49 per month. Caliper asks for nothing beyond the download.

Caliper holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Milligram has 419 ratings behind it against 1, 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 Caliper's.

Milligram ships an update every 5 days, Caliper every 10 days. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Milligram | Caliper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (419 ratings)](https://appshunter.io/ios/app/milligram-peptide-tracker/id6759593151/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/caliper-glp-1-peptide-tracker/id6781884879/reviews)** |
| Number of ratings | **419** | 1 |
| Positive reviews | 58.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 10 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 171 MB | 43 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Milligram Health Pty Ltd](https://appshunter.io/developer/6821805255) | [IKIGAI SOFTWARE DEVELOPMENT LLC](https://appshunter.io/developer/6781884881) |

## 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 |


### Caliper

[App page](https://appshunter.io/ios/app/caliper-glp-1-peptide-tracker/id6781884879)

Precisely track GLP-1, peptide, and compound protocols with one-tap logging and visual level curves. Monitor doses, weight, side effects, and progress privately on your device. Includes a reconstitution calculator and provider export.

**Highlights:** GLP-1 & peptide tracking, One-tap dose logging, Visual compound level curves, Weight & BMI trends, Side effect logging, Private progress photos, Reconstitution calculator

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

**In-app purchases:** none


## Frequently asked questions

### Is Milligram free?

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

### Is Caliper free?

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

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

Caliper is rated higher. Milligram averages 4.7 out of 5 from 419 ratings, while Caliper averages 5.0 from 1 ratings.

### Do Milligram or Caliper have ads?

Neither Milligram nor Caliper shows ads.

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

Milligram ships an update every 5 days, and Caliper every 10 days. Most recently, Milligram was updated on October 25, 2026 and Caliper on October 23, 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.*