rex.fit vs Isomorphic Labs
Side-by-side comparison of features, pricing, and ratings
At a glance
| Dimension | rex.fit | Isomorphic Labs |
|---|---|---|
| Pricing | Freemium (The Drop wearable ~$199, Rex AI chatbot free-tier available) | Contact-based (enterprise partnerships only) |
| Target Users | Individuals wanting automated meal tracking | Pharma companies needing AI drug discovery |
| Core Technology | Computer vision + WhatsApp AI chatbot for nutrition logging | AlphaFold-based predictive & generative models for drug design |
| Key Integration | WhatsApp (primary interface), The Drop wearable | No integrations; partnerships via direct collaboration |
| Recent News | No recent news | Series B (Feb 2026), J&J collab (Jan 2026), $600M funding (Mar 2025) |
| Best For | Fitness enthusiasts, weight loss seekers, WhatsApp users | Large pharma, late-stage drug development, research institutions |
If you're an individual wanting effortless calorie and macro tracking via WhatsApp or a wearable, rex.fit is a practical freemium choice. But if you're a pharmaceutical company targeting accelerated drug discovery, Isomorphic Labs’ AlphaFold-based platform and deep pharma partnerships (e.g., Novartis, J&J) are unmatched — though it's only accessible through enterprise contracts. Pick rex.fit for personal nutrition; pick Isomorphic Labs for institutional drug R&D.
AI-native drug discovery partner for pharma, building on AlphaFold to design novel therapeutics.
Visit WebsiteWhat real users say: rex.fit vs Isomorphic Labs
Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.
rex.fit
0 mentions · mixed
What users praise
- • WhatsApp integration makes logging as easy as sending a text or photo.
- • Automated tracking eliminates manual entry for calories, macros, and workouts.
- • Free to start with no upfront cost to test the chatbot.
- • Personalized daily report cards provide feedback on diet and exercise.
What frustrates them
- • No community reviews or usage data to verify accuracy or reliability.
- • The Drop wearable is pre-order only; core value proposition is delayed.
- • Photo-based nutrition logging is known to be error-prone across all AI tools.
- • Only available on WhatsApp—no standalone app for iOS/Android or web.
Researched Jul 3, 2026
Isomorphic Labs
48 mentions across 3 sources · 82% positive
Hacker News, YouTube, Lemmy
What users praise
- • Built on the Nobel-winning AlphaFold, giving it instant credibility in structural biology.
- • Drug Design Engine extends beyond structure to generative molecule design, promising novel chemistry.
- • Deep partnerships with Novartis and J&J, with potential billions in royalties.
- • Interdisciplinary team of top ML and drug discovery experts, ensuring depth of expertise.
What frustrates them
- • Not accessible to individual researchers or small biotech due to partnership model only.
- • Proprietary nature of parts of its tech limits community scrutiny and independent validation.
- • CASP16 results suggest AlphaFold 3-based models aren't always better than older methods for protein-ligand interactions.
- • No marketed drugs yet; outcomes remain uncertain with royalties tied to long timelines.
Researched Aug 18, 2026
Who should pick which
- Solo fitness enthusiastPick: rex.fit
With freemium pricing and WhatsApp integration, it's a low-cost way to automate meal logging and get daily feedback.
- Pharma R&D teamPick: Isomorphic Labs
Isomorphic Labs' AlphaFold-based drug design engine and partnerships (Novartis, J&J) accelerate discovery at scale.
- Weight loss beginnerPick: rex.fit
Snap-and-track simplicity via AI chatbot reduces friction, ideal for starting healthy habits.
- Large biotech companyPick: Isomorphic Labs
Series B and $600M funding signal robust capacity for massive drug programs; contact-based pricing fits enterprise budgets.
- Researcher exploring AI in biologyPick: Isomorphic Labs
Access to cutting-edge digital biology simulation, but only via partnership – not as a standalone tool.
Frequently Asked Questions
rex.fit vs Isomorphic Labs: which should you choose?
If you're an individual wanting effortless calorie and macro tracking via WhatsApp or a wearable, rex.fit is a practical freemium choice. But if you're a pharmaceutical company targeting accelerated drug discovery, Isomorphic Labs’ AlphaFold-based platform and deep pharma partnerships (e.g., Novartis, J&J) are unmatched — though it's only accessible through enterprise contracts. Pick rex.fit for personal nutrition; pick Isomorphic Labs for institutional drug R&D.
Can I use rex.fit without The Drop wearable?
Yes, rex.fit's AI chatbot works on WhatsApp via photo or text, no wearable required.
Isomorphic Labs is spinout from DeepMind – does it use AlphaFold?
Yes, its Drug Design Engine is built on AlphaFold and proprietary models for protein-ligand interactions.
Does rex.fit integrate with other fitness apps like MyFitnessPal?
No, rex.fit integrates primarily with WhatsApp and its own wearable; no barcode scanning or third-party app integrations are listed.
How can I get pricing for Isomorphic Labs?
Pricing is not public; you must contact their enterprise sales team to discuss partnership terms.
Which tool is better for weight loss?
rex.fit is designed for personal nutrition tracking, making it more suitable for weight loss. Isomorphic Labs is for drug discovery, not consumer health.
Is rex.fit medically validated?
There is no mention of clinical validation; it's a consumer tool for logging and feedback, not medical advice.
What recent milestones has Isomorphic Labs achieved?
In 2025-2026, it raised $600M external investment, closed a Series B, partnered with Johnson & Johnson, appointed a President and CMO, and established US operations.
Can I try rex.fit for free?
Yes, rex.fit likely offers a free tier for its AI chatbot; The Drop wearable likely requires purchase.
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Last reviewed: July 3, 2026