# BFIX Project vs Stack

The clearest difference is price: BFIX Project at Free against Stack's $6.99. BFIX Project also leads on device support (3 vs 1) and ratings volume (3 vs 1). Stack's advantage is update cadence (daily vs every 3 months) and chart position (#199 vs unranked). On rating, ads and in-app purchases there is nothing between them.

BFIX Project is free to download; Stack costs $6.99 up front. 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 BFIX Project against 5.0 for Stack. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

BFIX Project ships an update every 3 months, Stack daily. The most recent releases landed on September 13, 2026 and August 7, 2026 respectively.

## The numbers

| Metric | BFIX Project | Stack |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/bfix-project/id6499011410/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/stack-daily-intentions/id6781799978/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#199** |
| Size | 169 MB | 1 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [lvlup-app, Inc.](https://appshunter.io/developer/1580197540) | [hsla0001](https://appshunter.io/developer/1778537322) |

## What reviewers say

### BFIX Project

[App page](https://appshunter.io/ios/app/bfix-project/id6499011410)

This app offers personalized coaching for joint pain, rehabilitation, and posture correction. It connects you with a coach for tailored workout and diet plans, and syncs with Apple HealthKit for activity tracking.

**Highlights:** Personalized online coaching, Custom workout programming, Mobility and rehab exercises, Personalized diet plans, Apple HealthKit synchronization, Direct chat with coach

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Stack

[App page](https://appshunter.io/ios/app/stack-daily-intentions/id6781799978)

**Currently charting:** #199 Top Paid · Health & Fitness (US App Store)

This app helps you build and complete habits within a 90-day timeframe. It focuses on finishing cycles rather than perpetual tracking, with a limit of three habits at a time. The interface uses a grid to mark progress, and a widget provides quick access to daily tasks.

**Highlights:** Three habit limit, 90-day completion cycles, Manual grid progress tracking, Home-screen widget, One honest skip per week, No accounts or data collection

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

**In-app purchases:** none


## Frequently asked questions

### Is BFIX Project free?

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

### Is Stack free?

Stack costs $6.99, with no in-app purchases.

### Which has better reviews, BFIX Project or Stack?

BFIX Project and Stack are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do BFIX Project or Stack have ads?

Neither BFIX Project nor Stack shows ads.

### Which is updated more often, BFIX Project or Stack?

BFIX Project ships an update every 3 months, and Stack daily. Most recently, BFIX Project was updated on September 13, 2026 and Stack on August 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.*