Tether vs AIP Diet Tracker
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Tether
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Living with chronic sensitivities can feel overwhelming, but you do not have to navigate it alone. Tether is a personal health companion designed for anyone dealing with environmental triggers, food sensitivities, nervous system overload, or complex chronic symptoms. Track your experiences, identify patterns, and receive personalized AI-powered insights, all in one place. YOUR PERSONAL HEALTH JOURNAL Log symptoms, foods, supplements, exposures, events, and recovery activities in seconds. Tetherβs smart journal helps connect the dots between what you eat, what you encounter, and how you feel. CORTEX, YOUR AI HEALTH COMPANION Ask Cortex anything about your health journey. Powered by advanced AI and grounded in your personal data, Cortex offers thoughtful, informed guidance tailored to your specific triggers, safe items, and sensitivity profile. It is like having a wise friend who understands biology and takes your symptoms seriously. FOOD SCANNER Snap a photo of any food label or ingredient list. Tether analyzes it against your personal trigger and safe item lists, flagging potential concerns and suggesting alternatives. HEALING PROTOCOL LIBRARY Access a curated library of evidence-informed protocols across three tiers: Immediate Relief, Maintenance Routines, and Deep Repair Strategies. From breathwork to vagal toning to gut support, find guided tools that meet you where you are. SENSITIVITY PROFILE Build a living map of your bodyβs responses. Track triggers, safe items, and items you are testing. Watch your profile evolve as you learn what works for your unique biology. SYSTEM CHECK Take a guided assessment to explore which body systems may be contributing to your symptoms, including immune balance, nervous system regulation, histamine pathways, and gut health. INSIGHTS AND PATTERNS Tether analyzes your journal entries to surface patterns you might otherwise miss. See connections between your symptoms, triggers, exposures, and daily habits over time. ALSO INCLUDED: β’ Daily streak tracking to build consistent logging habits β’ Supplement tracker β’ Save and bookmark healing protocols β’ Saved food scan results for quick reference β’ Optional daily affirmations β’ Dark mode β’ Secure cloud backup when signed in β’ Data export and full data control Tether is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare provider. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
AIP Diet Tracker
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Calm is the most complete AIP diet tracker for people following the Autoimmune Protocol. Whether you're managing Hashimoto's disease, lupus, rheumatoid arthritis, IBD, psoriasis, or another autoimmune condition, Calm gives you everything you need to follow the AIP elimination diet with clarity and confidence. THE AIP FOOD DATABASE - Comprehensive database of AIP-approved and eliminated foods - Instant green, amber, and red status for every ingredient - Search any food to know its AIP elimination phase status - Identify hidden food sensitivities with organized tracking - Covers all AIP phases from strict elimination to reintroduction DAILY SYMPTOM TRACKING - Log energy, mood, digestion, sleep, and pain levels each day - Track gut healing progress with visual symptom trends - Spot connections between specific foods and symptom flares - Build a personal record your healthcare provider can review - See how your autoimmune response changes over time REINTRODUCTION PROTOCOL - Step-by-step guide to AIP reintroduction stages - Log each food reintroduction with symptom notes at 2 hours, 8 hours, and 24 hours - Build your personal food map - know exactly which foods trigger your leaky gut symptoms - Track food sensitivities systematically with the science-backed protocol - Follow the method trusted by functional medicine practitioners FOOD LOG AND COMPLIANCE - Track every meal with AIP compliance scoring - Keep a detailed food diary during your elimination phase - Review eating patterns to understand your gut healing journey AI AIP GUIDE (PREMIUM) - Ask questions about the AIP protocol and get personalized guidance - Understand confusing ingredients and their elimination phase status - Get meal ideas tailored to your current reintroduction stage - Receive practical support for navigating your autoimmune diet WHO CALM IS FOR - Anyone following the Autoimmune Protocol diet - People with Hashimoto's, lupus, rheumatoid arthritis, Crohn's disease, psoriasis, or any autoimmune condition - Anyone healing leaky gut through elimination diet and gut healing protocols - People in the elimination phase or beginning food reintroduction - Anyone identifying food sensitivities through systematic tracking PREMIUM FEATURES Upgrade to Calm Pro for unlimited food reintroduction tracking, symptom trend charts, personal food sensitivity map, AI AIP guidance, and PDF export for your healthcare provider. Calm is not a medical app and does not provide medical advice. Always consult your healthcare provider before starting any elimination diet or making changes to your treatment plan. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Verdict
The clearest difference is iOS requirement: Tether at 15.1 against AIP Diet Tracker's 18. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Tether sells 3 in-app purchases, starting at $4.99 per month and AIP Diet Tracker sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Tether ships an update every 2 months, AIP Diet Tracker monthly. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.
| Parameter | Tether | AIP Diet Tracker |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Monthly β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod β better | iPhone |
| Requires iOS | 15.1 β better | 18 |
| Further details β not scored | ||
| Size | 39 MB | 11 MB |
| Age rating | 17+ | 4+ |
| Developer | Zachary Lyons | Karol Jaworski |
In-app purchases
Tether
- Tether Premium$4.991 Month
- Tether Premium$39.991 Year
- Tether Premium$79.99
AIP Diet Tracker
- Calm Pro$4.991 Month
- Calm Pro1 Year trial$39.991 Year
- Calm Pro$39.991 Year









