# WhittleStrength vs Source Performance

WhittleStrength and Source Performance are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 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 WhittleStrength against 5.0 for Source Performance. Both are backed by a comparable volume of ratings — 8 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

WhittleStrength ships an update every 6 weeks, Source Performance every 2 months. The most recent releases landed on September 14, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | WhittleStrength | Source Performance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/whittlestrength/id6503015827/reviews) | [5.0 (9 ratings)](https://appshunter.io/ios/app/source-performance/id6590602459/reviews) |
| Number of ratings | 8 | **9** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 172 MB | 180 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [WhittleStrength LLC](https://appshunter.io/developer/1747792566) | [Source Performance LLC](https://appshunter.io/developer/1760047672) |

## What reviewers say

### WhittleStrength

[App page](https://appshunter.io/ios/app/whittlestrength/id6503015827)

This app provides personalized workout programs and detailed tracking for your fitness journey. Monitor progress, optimize recovery, and manage nutrition with integrated tools. Connect with a supportive community and coaches for motivation.

**Highlights:** Personalized training programs, Workout set, rep, and tempo tracking, Exercise library with cues, Nutrition and habit tracking, Wearable device integration, Community support and coaching

**Features:** Apple Wallet

**In-app purchases:** none


### Source Performance

[App page](https://appshunter.io/ios/app/source-performance/id6590602459)

This app provides personalized workout programs and tracks your fitness journey. Monitor workouts, nutrition, habits, and measurements with coach support. Achieve your health goals with guided exercises and progress tracking.

**Highlights:** Access and track training plans, Follow exercise and workout videos, Track meals and food choices, Monitor daily habits, Set and track health goals, Message your coach in real-time, Track body measurements and progress photos

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is WhittleStrength free?

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

### Is Source Performance free?

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

### Which has better reviews, WhittleStrength or Source Performance?

WhittleStrength and Source Performance are both rated 5.0 out of 5 on the App Store, from 8 and 9 ratings respectively.

### Do WhittleStrength or Source Performance have ads?

Neither WhittleStrength nor Source Performance shows ads.

### Which is updated more often, WhittleStrength or Source Performance?

WhittleStrength ships an update every 6 weeks, and Source Performance every 2 months. Most recently, WhittleStrength was updated on September 14, 2026 and Source Performance on September 18, 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.*