# Day75 vs Grind75

The clearest difference is in-app purchases: Grind75 at none against Day75's 2. Grind75 also leads on ads (none vs shown) and ratings volume (22 vs 2). Day75's advantage is iOS requirement (16.4 vs 18.0). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. Day75 sells 2 in-app purchases, starting at $3.99 per month. Grind75 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Day75 against 5.0 for Grind75. 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.

Day75 ships an update every 2 weeks, Grind75 monthly. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Day75 | Grind75 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/day75-hard-challenge-tracker/id6757592581/reviews)** | [5.0 (22 ratings)](https://appshunter.io/ios/app/grind75/id6760317807/reviews) |
| Number of ratings | 2 | **22** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 117 MB | 21 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OKCOKER LLC](https://appshunter.io/developer/1180479091) | [Priya Pappachen Yohannan](https://appshunter.io/developer/1883822079) |

## What reviewers say

### Day75

[App page](https://appshunter.io/ios/app/day75-hard-challenge-tracker/id6757592581)

This app guides users through a 75-day challenge focused on building discipline and mental toughness. It provides tools to track daily tasks like workouts, diet, water intake, and reading, with options for custom challenges and progress visualization.

**Highlights:** Daily task checklist, Smart countdown timer, Water intake tracker, Reading log, Progress photo journal, Challenge analytics, Custom challenge durations

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Day75 Monthly | $3.99 | per month |
| Day75 Yearly | $29.99 | per year |


### 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


## Frequently asked questions

### Is Day75 free?

Day75 is free to download, with in-app purchases available.

### Is Grind75 free?

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

### Which has better reviews, Day75 or Grind75?

Day75 is rated higher. Day75 averages 5.0 out of 5 from 2 ratings, while Grind75 averages 5.0 from 22 ratings.

### Do Day75 or Grind75 have ads?

Day75 shows ads; Grind75 does not.

### Which is updated more often, Day75 or Grind75?

Day75 ships an update every 2 weeks, and Grind75 monthly. Most recently, Day75 was updated on October 3, 2026 and Grind75 on October 7, 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.*