# PureStrength (FormCheck AI) vs SuppCo

PureStrength (FormCheck AI) records 0 monthly visits with — month-over-month growth and Free pricing. SuppCo records 207,874 monthly visits with -21.9% growth and Freemium pricing.

| Metric | [PureStrength (FormCheck AI)](https://openaitools.app/tool/purestrength) | [SuppCo](https://openaitools.app/tool/suppco) |
| :--- | :--- | :--- |
| Website URL | https://apps.apple.com/gb/app/purestrength/id1621267448 | https://supp.co |
| Categories | AI Fitness, AI Coaching, AI Assistant, AI Sports | AI Healthcare, AI Fitness, Other |
| Pricing Model | Free | Freemium |
| Monthly Visits | 0 | 207,874 |
| MoM Growth Rate | — | -21.9% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 66,271 |
| Review Score | 4.1 | 4.1 |
| Saved Count | 1 | 0 |
| Supported Platforms | App | Website |

## PureStrength (FormCheck AI)

PureStrength, now listed on the App Store as FormCheck AI, is a video-based AI personal trainer for the big three powerlifting movements. You record a working set on your iPhone, the app tracks the barbell and key joint positions frame by frame, and it returns plain-language coaching cues on what went right and what needs fixing. Because the models run on the device, your clips are processed locally rather than uploaded to a server.

The strongest part of the app is the depth of its per-lift feedback. For the deadlift it watches shoulder positioning, hip drive and lockout; for the squat it monitors depth, alignment and left/right balance; for the bench press it looks at bar path, control, grip and elbow position. Later releases extended this to bent-over rows and bicep curls, and added on-device 3D rendering so you can rotate a lift and inspect the trajectory of the bar.

The app comes from Purestrength Limited, a small studio that also publishes Larry AI, Deepbarbell and Qutie. It sits firmly in the strength-training niche rather than general fitness: if you compete in powerlifting or take your squat, bench and deadlift seriously, the specific cues are genuinely useful, while anyone looking for a full workout log or calorie tracker will want something broader.

**Pricing & Plans:** Free to download and use as of version 3.0 (January 2025), with optional in-app purchases. The app was previously subscription-based; verify the current pricing and any in-app offers on the App Store page for your region.

- **Deadlift form correction:** Track hip movement, shoulder position and lockout so you avoid a rounded back and get a clean pull.
- **Squat form analysis:** Depth monitoring plus alignment and balance alerts so you activate the right muscles on every rep.
- **Bench press guidance:** Feedback on bar path, control, grip and elbow position across the press.
- **On-device 3D analysis:** In-app 3D rendering and slow-motion playback let you replay each rep and see exactly where technique breaks down.
- **Form library and content:** Articles and videos on lifting technique, nutrition and recovery sit alongside a library of sample lifts.

**Strengths:** Detailed, lift-specific cues for squat, bench press and deadlift rather than generic rep counting.; On-device processing keeps training videos private and works without a constant connection.; 3D rendering and slow-motion replay make it easy to see exactly where form breaks down.; Became free to use in 2025, removing the previous subscription barrier.

**Limitations:** Focused on only three lifts (squat, bench press, deadlift), so it is not a general-purpose workout tracker.; Analysis quality depends on how well you frame and film your set; poor angles produce weaker feedback.; Larger download (~495 MB) because the computer-vision models run on the device.; iOS/visionOS only — no Android or web version.

[Profile (Markdown)](https://openaitools.app/tool/purestrength.md)

## SuppCo

SuppCo positions itself as a companion app for supplement users rather than a shop. You add the products you already take, and SuppCo rates each one with its TrustScore system, a 29-attribute quality measure that weighs manufacturing standards, third-party testing, label accuracy and inactive ingredients. The score and the underlying evidence are shown openly, so a 9.8 "Excellent" rating on a fish oil is explained rather than asserted.

The other half of the product is personalisation. Stack analysis reviews your whole regimen for nutrient coverage, dosing and redundancy, then compares it against your goals and returns a StackScore with specific suggestions. SuppCo's expert panel, which includes physicians and nutrition coaches known for their work in functional medicine, contributes protocols for goals such as longevity, gut health, fitness, weight management and fertility, and a research center summarises what thousands of studies say about individual nutrients and popular ingredients.

Alongside the app, SuppCo runs a Buying Club that sells vetted products directly and returns a share of spend as credits, plus a community and editorial layer. The service is free to use, with an optional Pro subscription for deeper personalisation, and SuppCo now operates as part of Function following that acquisition.

**Pricing & Plans:** Freemium. SuppCo is free for all users, including the stack tracker, TrustScore product ratings and research content. An optional Pro subscription unlocks advanced personalization tools, and the SuppCo Buying Club offers 30% back in Supp Credits on purchases.

- **TrustScore® quality ratings:** Scan or search products to see a quality rating built from 29 attributes covering manufacturing standards, testing benchmarks and inactive ingredients.
- **Personalized stack analysis:** Get a StackScore for your routine along with nutrient-level coverage, dosing feedback and gap analysis against your health goals.
- **Expert-designed protocols:** Follow regimens designed by clinicians and functional-medicine experts for goals like longevity, gut health, fitness, weight management and fertility.
- **Tracker with reminders:** Smart scheduling, reminders and daily intake logging so you actually stick to your supplement routine.
- **Research center and community:** Browse nutrient explainers, goal guides and protocols informed by thousands of published studies, plus a members' community.

**Strengths:** TrustScore turns supplement quality into a plain numeric rating with visible criteria; Stack analysis catches overlaps, dosing issues and coverage gaps across a whole routine; Protocols contributed by named, credentialed experts rather than anonymous listicles; Free core tier with no paywall on basic tracking and product research

**Limitations:** Health guidance is educational and not a substitute for professional medical advice; Pro tier required for the most advanced personalization features; Vendor-supplied listings and scores may not cover every niche or regional brand; App-centric experience, so desktop-only users get less value

[Profile (Markdown)](https://openaitools.app/tool/suppco.md)

## Frequently Asked Questions

### How do PureStrength (FormCheck AI) and SuppCo compare in monthly traffic?

PureStrength (FormCheck AI) has 0 monthly visits, while SuppCo has 207,874. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

PureStrength (FormCheck AI) has a month-over-month growth rate of —; SuppCo has -21.9%.

### How does pricing compare?

PureStrength (FormCheck AI): Free. Free to download and use as of version 3.0 (January 2025), with optional in-app purchases. The app was previously subscription-based; verify the current pricing and any in-app offers on the App Store page for your region. SuppCo: Freemium. Freemium. SuppCo is free for all users, including the stack tracker, TrustScore product ratings and research content. An optional Pro subscription unlocks advanced personalization tools, and the SuppCo Buying Club offers 30% back in Supp Credits on purchases.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [FitnessAI](https://openaitools.app/tool/fitnessai-com) | 174,453 | -24.6% | Freemium | AI strength training that programs every set, rep and weight | [.md](https://openaitools.app/tool/fitnessai-com.md) |
| 2 | [Planfit - AI Personal Trainer](https://openaitools.app/tool/planfit-ai-personal-trainer) | 137,689 | +3.3% | Free | Free AI personal trainer that builds your gym workout plan in 30 seconds | [.md](https://openaitools.app/tool/planfit-ai-personal-trainer.md) |
| 3 | [AlterMe](https://openaitools.app/tool/alter) | 108,996 | -11.4% | Paid | Builds personalized wellness plans from DNA and biometrics, but focuses less on dedicated supplement stack optimization. | [.md](https://openaitools.app/tool/alter.md) |
| 4 | [Empirical Health](https://openaitools.app/tool/empirical-health) | 70,517 | -28.8% | Paid | Pairs biomarker testing with wellness plans, but does not provide specific supplement quality ratings or stack dosing. | [.md](https://openaitools.app/tool/empirical-health.md) |
| 5 | [SHRED](https://openaitools.app/tool/shred) | 57,430 | -15.3% | Freemium, Free Trial | Elite coach-built training plans, precision-tuned by adaptive AI | [.md](https://openaitools.app/tool/shred.md) |
| 6 | [Peak Strength](https://openaitools.app/tool/peakstrength-app) | 44,681 | -21.5% | Free Trial | Sport-specific strength programming that tells you exactly what to lift | [.md](https://openaitools.app/tool/peakstrength-app.md) |
| 7 | [BodBot](https://openaitools.app/tool/bodbot-com) | 25,589 | -26.8% | Freemium | Adapts workout and nutrition plans dynamically, but does not offer specialized supplement stack tracking or quality ratings. | [.md](https://openaitools.app/tool/bodbot-com.md) |
| 8 | [Gyroscope](https://openaitools.app/tool/gyrosco-pe) | 19,865 | -5.2% | Freemium, Free Trial, Paid | Consolidates biometric health data with an AI coach, but lacks granular supplement stack analysis and safety ratings. | [.md](https://openaitools.app/tool/gyrosco-pe.md) |
| 9 | [Trainer+ by Vitruvian](https://openaitools.app/tool/vitruvianform-com) | 18,126 | -41.4% | Paid | An all-in-one digital home gym with AI and expert coaching | [.md](https://openaitools.app/tool/vitruvianform-com.md) |
| 10 | [MyCoach Ai](https://openaitools.app/tool/mycoachai-com) | 15,959 | +47.2% | Free Trial, Paid | One branded app for nutrition, training and client check-ins | [.md](https://openaitools.app/tool/mycoachai-com.md) |

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Source: https://openaitools.app/compare/purestrength-vs-suppco

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