# Built With Science+ vs Epilog

The clearest difference is monetization model: Epilog at freemium against Built With Science+'s subscription. Epilog also leads on update cadence (every 6 days vs fortnightly) and review sentiment (90% vs 80%). Built With Science+'s advantage is ratings volume (4.8K vs 2). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Built With Science+ sells 4 in-app purchases, starting at $29.99 per month and Epilog sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Epilog holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Built With Science+ has 4.8K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 80% of Built With Science+'s written reviews are positive against 90% of Epilog's.

Built With Science+ ships an update fortnightly, Epilog every 6 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Built With Science+ | Epilog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (4.8K ratings)](https://appshunter.io/ios/app/built-with-science-plus/id6446000532/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/epilog-workout-tracker-and-log/id6772330952/reviews)** |
| Number of ratings | **4.8K** | 2 |
| Positive reviews | 79.5% of reviews | **90.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Subscription | **Freemium** |
| Size | 235 MB | 115 MB |
| Requires iOS | 16.2 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Built With Science Holdings Corp](https://appshunter.io/developer/1559732895) | [Fit Mass](https://appshunter.io/developer/1752988914) |

## What reviewers say

### 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


### Epilog

[App page](https://appshunter.io/ios/app/epilog-workout-tracker-and-log/id6772330952)

Track your weightlifting progress with detailed metrics like weight, reps, and tempo. Analyze your performance muscle by muscle and set up circuit training routines. Measure body composition and sync with Apple Health.

**Highlights:** Record sets, reps, tempo, and rest, Analyze progression by muscle group, Create and track circuit training, Estimate 1RM and track volume, Log body measurements and photos, Exercise library with animations

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Epilog Pro (Mensuel) | $4.99 | per month |
| Epilog Pro (Annual) | $22.99 | per year |


## Frequently asked questions

### Is Built With Science+ free?

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

### Is Epilog free?

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

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

Epilog is rated higher. Built With Science+ averages 4.8 out of 5 from 4.8K ratings, while Epilog averages 5.0 from 2 ratings.

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

Neither Built With Science+ nor Epilog shows ads.

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

Built With Science+ ships an update fortnightly, and Epilog every 6 days. Most recently, Built With Science+ was updated on October 25, 2026 and Epilog on October 25, 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.*