# MacroFactor vs Built With Science+

The clearest difference is monetization model: MacroFactor at free with in-app purchases against Built With Science+'s subscription. MacroFactor also leads on chart position (#10 vs unranked) and update cadence (weekly vs every 2 weeks). Built With Science+'s advantage is review sentiment (80% vs 71%). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. MacroFactor sells 11 in-app purchases, starting at $9.99 per month and Built With Science+ sells 4 in-app purchases, starting at $29.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for MacroFactor against 4.8 for Built With Science+. That said, the two scores are not equally well evidenced: MacroFactor has 22K ratings behind it against 3.9K, so its average is the more settled of the two. Written reviews are what separate them: 71% of MacroFactor's written reviews are positive against 80% of Built With Science+'s.

MacroFactor ships an update weekly, Built With Science+ every 2 weeks. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | MacroFactor | Built With Science+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (22K ratings)](https://appshunter.io/ios/app/macrofactor-macro-tracker/id1553503471/reviews) | [4.8 (3.9K ratings)](https://appshunter.io/ios/app/built-with-science-plus/id6446000532/reviews) |
| Number of ratings | **22K** | 3.9K |
| Positive reviews | 70.8% of reviews | **79.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | **Free with in-app purchases** | Subscription |
| Best chart rank | **#10** | — |
| Size | 217 MB | 233 MB |
| Requires iOS | **15.6** | 16.2 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, Apple Watch |
| Age rating | 9+ | 4+ |
| Developer | [Stronger By Science Technologies LLC](https://appshunter.io/developer/1553503473) | [Built With Science Holdings Corp](https://appshunter.io/developer/1559732895) |

## What reviewers say

### MacroFactor

[App page](https://appshunter.io/ios/app/macrofactor-macro-tracker/id1553503471)

**Currently charting:** #10 Top Grossing · Health & Fitness, #75 Top Free · Health & Fitness, #189 Top Grossing (US App Store)

This app uses a dynamic algorithm to adapt your calorie and macro targets based on your metabolism and progress. It offers tools for quick food logging, a verified database, and personalized coaching to help you achieve sustainable diet goals without stress or rigidity.

**Highlights:** Dynamic metabolism adaptation, Personalized macro and calorie targets, Verified food database, Barcode scanner, Weekly coaching check-ins, Micronutrient tracking, Weight trend insights

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Monthly Subscription | $11.99 | per month |
| Monthly Subscription | $11.99 | per month |
| Monthly Subscription | $11.99 | per month |
| Semiannual Subscription | $47.99 | per 6 months |
| Semiannual Subscription | $47.99 | per 6 months |
| Annual Subscription | $59.99 | per year |
| Annual Subscription | $59.99 | per year |
| Annual Subscription | $71.99 | per year |
| Annual Subscription | $71.99 | per year |
| Annual Subscription Bundle | $89.99 | per year |

**What reviewers like**

- 🚀 Easy to use
- 🔍 Detailed analytics and data
- 🤖 Intelligent algorithm adjustments
- 👍 Flexible and customizable
- 💯 Comprehensive food database

**What reviewers complain about**

- 🔍 Limited food database for some regions
- 🤔 Steep learning curve for some users
- 💰 Subscription-based model
- 🤖 Occasional inaccuracies in AI-generated entries
- 🔀 Convoluted navigation in some areas

**Reported bugs**

- Disappearing food entries
- Inconsistent syncing with Apple Health

**Requested features**

- Apple Watch integration
- Micronutrient tracking
- Ability to edit database entries
- Improved barcode scanning for international users
- Customizable dashboard and widgets


### Built With Science+

[App page](https://appshunter.io/ios/app/built-with-science-plus/id6446000532)

This intelligent fitness companion offers personalized workout plans and nutrition advice based on scientific insights. It adapts to your progress with real-time feedback, providing guidance for continuous gains and informed health decisions.

**Highlights:** Hyper-Personalized Workouts, Progressive Overload Guidance, Real-Time Diet Adjustments, AI-Powered Meal Scanner, 250+ Exercise Tutorials, Daily Knowledge Boosters, AI Fitness & Nutrition Assistant

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $29.99 | per month |
| Annual Membership | $189.00 | per year |
| Intermediate Program Unlock | $49.00 | one-time |
| Beginner Program Unlock | $49.00 | one-time |

**What reviewers like**

- 👍 Comprehensive fitness and nutrition tracking
- 🚀 Convenient all-in-one app
- 📚 Helpful educational lessons
- 💪 Science-backed program
- 🎯 Customized and adaptive workouts

**What reviewers complain about**

- 🐛 Occasional performance issues and bugs
- 🔍 Limited food database and recipe options
- 📱 Lack of integration with other fitness apps and devices
- 🕰️ Inflexible workout scheduling
- 💬 Limited human interaction and coaching support

**Reported bugs**

- Workout data sometimes gets lost or marked incomplete
- App takes a long time to open
- Login and sign-up issues for existing customers
- Inconsistent exercise recommendations and adjustments

**Requested features**

- Add ability to create and save custom recipes
- Integrate with Apple Health and other fitness platforms
- Provide more flexibility in workout scheduling
- Enhance human coaching and support features
- Improve performance and stability


## Frequently asked questions

### Is MacroFactor free?

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

### Is Built With Science+ free?

Built With Science+ is free to download, with in-app purchases available.

### Which has better reviews, MacroFactor or Built With Science+?

MacroFactor and Built With Science+ are both rated 4.8 out of 5 on the App Store, from 22K and 3.9K ratings respectively.

### Do MacroFactor or Built With Science+ have ads?

Neither MacroFactor nor Built With Science+ shows ads.

### Which is updated more often, MacroFactor or Built With Science+?

MacroFactor ships an update weekly, and Built With Science+ every 2 weeks. Most recently, MacroFactor was updated on September 24, 2026 and Built With Science+ on September 23, 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.*