Immunity Science vs Probiotics Guide.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Immunity Science
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In 2020, the world changed forever in ways that confounded our experts and eroded trust in our institutions. Immunity Science was founded with the understanding that there is no one size fits all option for your immunity. We humbly invite you to learn more about the benefits of scientific knowledge and how knowledge about immunity can guide a healthier lifestyle for you and your family.
Probiotics Guide.
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Learn about probiotics, gut bacteria, and the microbiome. Probiotics Guide helps you explore probiotic bacteria, gut microbiome science, and the role of beneficial microbes in human health. Discover probiotic strains, understand digestive health, and learn how microorganisms influence the body. The app provides structured information designed for students, health learners, and anyone interested in probiotics and microbiome research. Probiotic Strains • Explore common probiotic bacteria • Learn about different probiotic strains • Understand how probiotics support the body • Discover the role of beneficial microbes Gut Health • Learn how probiotics support digestion • Understand the gut microbiome • Explore connections between gut health and overall wellness Health Benefits • Digestive health support • Immune system interactions • Skin and metabolic health connections • Microbiome balance and function Usage and Safety • General probiotic usage information • Possible side effects and sensitivities • Interactions with foods and supplements • Storage considerations for probiotic products Search and Discovery • Search probiotic strains quickly • Explore probiotics through organized categories • Find information about gut health topics Learning Tools • Educational facts about probiotics • Quiz mode to test microbiome knowledge • Structured content designed for easier learning Favorites • Save important probiotic strains • Quickly access frequently viewed topics Designed for Easy Learning • Clean and simple interface • Organized probiotic information • Easy navigation between topics Premium Features Upgrade for additional benefits: • Offline access to probiotic information • Ad-free experience • Improved reading convenience Privacy Focused • No unnecessary permissions • No personal data collection • Information remains on your device Who This App Is For • Health-conscious individuals • Nutrition students • Healthcare learners • Researchers interested in microbiome science • Anyone interested in probiotics and gut health Educational Disclaimer This app provides educational information only and does not offer medical advice. Always consult a qualified healthcare professional for health decisions. Probiotics Guide helps you explore probiotic strains, understand gut microbiome science, and learn about beneficial bacteria. Download Probiotics Guide to explore probiotics and gut health knowledge. LICENSED APPLICATION END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Verdict
The clearest difference is in-app purchases: Immunity Science at none against Probiotics Guide.'s 2. Immunity Science also leads on ads (none vs shown). Probiotics Guide.'s advantage is update cadence (every 2 weeks vs every 14 months). On price, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Probiotics Guide. sells 2 in-app purchases, starting at $1.99 per month. Immunity Science asks for nothing beyond the download.
Immunity Science ships an update every 14 months, Probiotics Guide. every 2 weeks. The most recent releases landed on September 15, 2026 and September 29, 2026 respectively.
| Parameter | Immunity Science | Probiotics Guide. |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 14 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 32 MB | 160 MB |
| Age rating | 4+ | 4+ |
| Developer | Immunity Science, Inc. | Olga Ivanova |
In-app purchases
Immunity Science
No in-app purchases
Probiotics Guide.
- Subscription$1.991 Month
- Sponsorship$1.99
Questions
Is Immunity Science free?
Is Probiotics Guide. free?
Do Immunity Science or Probiotics Guide. have ads?
Which is updated more often, Immunity Science or Probiotics Guide.?
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