# S2 vs Strongify

The clearest difference is review sentiment: Strongify at 72% against S2's 41%. Strongify also leads on rating (4.5 vs 4.1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. S2 sells 2 in-app purchases, starting at $22.99 per year and Strongify sells 6 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Strongify holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 126 and 280 respectively. Written reviews point the same way: 41% of S2's written reviews are positive against 72% of Strongify's.

S2 ships an update fortnightly, Strongify every 8 days. The most recent releases landed on July 17, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | S2 | Strongify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (126 ratings)](https://appshunter.io/ios/app/s2-strength-log/id1007310227/reviews) | **[4.5 (280 ratings)](https://appshunter.io/ios/app/strongify-rep-count/id1436592070/reviews)** |
| Number of ratings | 126 | **280** |
| Positive reviews | 41.3% of reviews | **72.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 8 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 9 MB | 34 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Formbound AB](https://appshunter.io/developer/531002945) | [Astrochimp SRL](https://appshunter.io/developer/1611331415) |

## What reviewers say

### S2

[App page](https://appshunter.io/ios/app/s2-strength-log/id1007310227)

This app helps you track and visualize your gym workout progress, encouraging progressive overload for weight loss or muscle gain. It offers a fast, intuitive interface with over 1000 exercises and a unique muscle fatigue heat map. No account is needed, and it integrates with HealthKit.

**Highlights:** Track and visualize workout progress, Muscle fatigue heat map, Create unlimited workout routines, Encourages progressive overload, 1000+ exercises, Workout history review, HealthKit integration

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| S2 Yearly | $22.99 | per year |
| Strongly Pro | $4.99 | one-time |


### Strongify

[App page](https://appshunter.io/ios/app/strongify-rep-count/id1436592070)

Easily log your weightlifting sessions by recording reps and weight lifted. Customize exercises and routines, then track your progress over time with motivating charts and a workout calendar. Share your achievements on social media.

**Highlights:** Log reps and weight in few taps, Create custom routines and exercises, Track progress with charts, Workout calendar view, Share workouts on social media, Support for time-based exercises

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Strongify Weekly Plan | $4.99 | per 7 days |
| Strongify Premium One Month | $7.99 | per month |
| Strongify Annual Plan | $24.99 | per year |
| Strongify Premium One Year | $29.99 | per year |
| Strongify Premium | $8.99 | one-time |
| Lifetime Premium | $49.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Smooth and clean interface
- 💡 Customizable workouts
- 👍 Helpful for tracking progress
- 👍 Great for basic workout tracking needs

**What reviewers complain about**

- 🐛 Bugs causing data loss after updates
- 🔍 Lack of advanced features (e.g., notes, folders, custom exercise library)
- 🔍 Limited data visualization and reporting
- 🔍 Inability to change measurement units within the app

**Reported bugs**

- Workout data getting deleted after updates
- Scrolling issues and screen freezes
- Inconsistent Apple Watch integration
- Incorrect workout data display

**Requested features**

- Add ability to pre-plan workouts
- Implement dark mode
- Improve Apple Watch integration
- Add notes section for each exercise
- Allow rearranging and organizing of exercises


## Frequently asked questions

### Is S2 free?

S2 is free to download, with in-app purchases available.

### Is Strongify free?

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

### Which has better reviews, S2 or Strongify?

Strongify is rated higher. S2 averages 4.1 out of 5 from 126 ratings, while Strongify averages 4.5 from 280 ratings.

### Do S2 or Strongify have ads?

Neither S2 nor Strongify shows ads.

### Which is updated more often, S2 or Strongify?

S2 ships an update fortnightly, and Strongify every 8 days. Most recently, S2 was updated on July 17, 2026 and Strongify on September 27, 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.*