# Doserly vs ProStack

The clearest difference is in-app purchases: ProStack at none against Doserly's 2. ProStack also leads on update cadence (every 6 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

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

Doserly ships an update every 6 weeks, ProStack every 6 days. The most recent releases landed on September 20, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Doserly | ProStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/prostack-peptide-tracker/id6789934657/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 6 days** |
| Monetization | — | Free |
| Size | 113 MB | 65 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Viking Media Labs Inc.](https://appshunter.io/developer/1601241536) | [JESSIE GRACE CHRISTIE](https://appshunter.io/developer/6789934659) |

## What reviewers say

### Doserly

[App page](https://appshunter.io/ios/app/doserly/id6759585905)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Doserly Pro - Monthly | $4.99 | per month |
| Doserly Pro - Yearly | $29.99 | per year |


### ProStack

[App page](https://appshunter.io/ios/app/prostack-peptide-tracker/id6789934657)

Effortlessly calculate peptide dosages and track your cycles with instant syringe unit calculations. Log your progress, set reminders, and access a reference library for safe and effective use.

**Highlights:** Instant syringe unit calculation, Cycle tracking with calendar view, Dose reminders with auto-pause, Progress tracking (body composition, photos), Peptide reference library, Nasal spray calculator

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

**In-app purchases:** none


## Frequently asked questions

### Is Doserly free?

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

### Is ProStack free?

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

### Do Doserly or ProStack have ads?

Neither Doserly nor ProStack shows ads.

### Which is updated more often, Doserly or ProStack?

Doserly ships an update every 6 weeks, and ProStack every 6 days. Most recently, Doserly was updated on September 20, 2026 and ProStack on September 29, 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.*