# COREPRESS vs Stack

The clearest difference is in-app purchases: COREPRESS at none against Stack's 2. COREPRESS also leads on iOS requirement (16.4 vs 18.0). Stack's advantage is update cadence (every 8 days vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Stack sells 2 in-app purchases, starting at $9.99 per 7 days. COREPRESS asks for nothing beyond the download.

COREPRESS ships an update every 5 months, Stack every 8 days. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | COREPRESS | Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/corepress/id6761189528/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 125 MB | 136 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) | [Amari Thomas](https://appshunter.io/developer/1868315587) |

## What reviewers say

### COREPRESS

[App page](https://appshunter.io/ios/app/corepress/id6761189528)

Book reformer Pilates classes and order from a juice bar at a Brooklyn studio. Focus on intentional training, steady progress, and community. Manage memberships, class packs, and wellness products all in one place.

**Highlights:** Browse and book reformer Pilates classes, Purchase memberships and class packs, Join waitlists for booked classes, Track attendance and progress, Pre-order juice bar items, Shop wellness products and merchandise

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

**In-app purchases:** none


### Stack

[App page](https://appshunter.io/ios/app/stack-peptide-tracker/id6773488687)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack Weekly | $9.99 | per 7 days |
| Stack Yearly | $49.99 | per year |


## Frequently asked questions

### Is COREPRESS free?

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

### Is Stack free?

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

### Do COREPRESS or Stack have ads?

Neither COREPRESS nor Stack shows ads.

### Which is updated more often, COREPRESS or Stack?

COREPRESS ships an update every 5 months, and Stack every 8 days. Most recently, COREPRESS was updated on September 10, 2026 and Stack on September 14, 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.*