# StackMindr vs Halflife

The clearest difference is ratings volume: Halflife at 71 against StackMindr's 8. On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. StackMindr sells 1 in-app purchase, starting at $4.99 per month and Halflife sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for StackMindr against 4.9 for Halflife. That said, the two scores are not equally well evidenced: Halflife has 71 ratings behind it against 8, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

StackMindr ships an update weekly, Halflife every 6 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | StackMindr | Halflife |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/stackmindr-peptide-tracker/id6762165518/reviews)** | [4.9 (71 ratings)](https://appshunter.io/ios/app/halflife-peptide-and-glp-1-log/id6763921857/reviews) |
| Number of ratings | 8 | **71** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Freemium | Freemium |
| Size | 26 MB | 59 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [StackMindr LLC](https://appshunter.io/developer/1893201584) | [Ziad Soliman](https://appshunter.io/developer/1892230531) |

## What reviewers say

### StackMindr

[App page](https://appshunter.io/ios/app/stackmindr-peptide-tracker/id6762165518)

Track peptide schedules, inventory, and personal well-being with automated organization and reminders. Monitor progress with charts and gain insights into how compounds affect your daily state. Includes a glossary of over 130 compounds.

**Highlights:** Compound schedule and inventory tracking, Injection site rotation, Daily check-ins for mood and energy, Progress photos and trend charts, 130+ compound glossary, Low-stock alerts, Private data with export options

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StackMindr Pro | $4.99 | per month |


### Halflife

[App page](https://appshunter.io/ios/app/halflife-peptide-and-glp-1-log/id6763921857)

Manage complex health protocols involving peptides, TRT, and longevity compounds. Track dosing, inventory, and biological effects with detailed pharmacokinetic modeling. Integrates with Apple Health for comprehensive wellness insights.

**Highlights:** Multi-compound protocol tracking, Pharmacokinetic concentration curves, Dose scheduling and adherence, Vial inventory management, Syringe calculator, Apple Health integration, Compound database

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Halflife Premium | $9.99 | per 7 days |
| Halflife Pro Annual | $34.99 | per year |
| Halflife Pro Annual | $44.99 | per year |


## Frequently asked questions

### Is StackMindr free?

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

### Is Halflife free?

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

### Which has better reviews, StackMindr or Halflife?

StackMindr is rated higher. StackMindr averages 5.0 out of 5 from 8 ratings, while Halflife averages 4.9 from 71 ratings.

### Do StackMindr or Halflife have ads?

Neither StackMindr nor Halflife shows ads.

### Which is updated more often, StackMindr or Halflife?

StackMindr ships an update weekly, and Halflife every 6 days. Most recently, StackMindr was updated on October 31, 2026 and Halflife 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.*