# Grind75 vs Stack

The clearest difference is update cadence: Stack at every 10 days against Grind75's monthly. Grind75's advantage is ratings volume (22 vs 2) and iOS requirement (18.0 vs 26.2). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Grind75 against 5.0 for Stack. That said, the two scores are not equally well evidenced: Grind75 has 22 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Grind75 ships an update monthly, Stack every 10 days. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Grind75 | Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (22 ratings)](https://appshunter.io/ios/app/grind75/id6760317807/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/stack-gym-tracker/id6760980211/reviews)** |
| Number of ratings | **22** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free | Free |
| Size | 21 MB | 22 MB |
| Requires iOS | **18.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Priya Pappachen Yohannan](https://appshunter.io/developer/1883822079) | [Lauterstar Technologies, Inc](https://appshunter.io/developer/6794436202) |

## What reviewers say

### Grind75

[App page](https://appshunter.io/ios/app/grind75/id6760317807)

This app helps you build discipline and stay consistent with self-improvement challenges like 75 Hard or 75 Soft. It offers flexible tracking for various habits, multiple challenge modes, and progress visualization to support your personal growth journey without rigid rules.

**Highlights:** Customizable challenge lengths, Multiple challenge modes (Hard, Medium, Soft, Parent), Habit tracking for fitness, water, reading, diet, and more, Progress photo and milestone tracking, Flexible system with pause and resume options, Health integration for step tracking, Shareable transformation cards

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

**In-app purchases:** none


### Stack

[App page](https://appshunter.io/ios/app/stack-gym-tracker/id6760980211)

This app helps users track their weightlifting progress with a focus on ease of use and data privacy. It allows for detailed logging of sets, exercise planning, and visual progress tracking without ads or intrusive notifications.

**Highlights:** Distraction-free lifting log, Local-first data storage with optional iCloud sync, Customizable splits and routines, Extensive exercise library with muscle mapping, Detailed per-set logging, Plate calculator for real-world racks, Progress visualization and trend analysis

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

**In-app purchases:** none


## Frequently asked questions

### Is Grind75 free?

Grind75 is free to download, with no in-app purchases.

### Is Stack free?

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

### Which has better reviews, Grind75 or Stack?

Stack is rated higher. Grind75 averages 5.0 out of 5 from 22 ratings, while Stack averages 5.0 from 2 ratings.

### Do Grind75 or Stack have ads?

Neither Grind75 nor Stack shows ads.

### Which is updated more often, Grind75 or Stack?

Grind75 ships an update monthly, and Stack every 10 days. Most recently, Grind75 was updated on October 7, 2026 and Stack on October 2, 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.*