Tether vs Symloom
Price, ratings, monetisation and update history for both apps, side by side — 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. Tether’s 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 body’s 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: • Daily streak tracking to build consistent logging habits • Supplement tracker • Save and bookmark healing protocols • Saved food scan results for quick reference • Optional daily affirmations • Dark mode • Secure cloud backup when signed in • 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/
Symloom
This app helps adults with chronic symptoms track their health by logging flares, triggers, medications, and daily context. Review your history with clear insights and prepare for appointments with exportable reports. It prioritizes user privacy and does not use health information for advertising.
- Symptom logging with curated library
- Track triggers, meds, mood, sleep, and more
- Private health diary timeline
- Personalized pattern insights
- PDF/CSV health reports
- Optional Apple Health integration
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Symloom is a private symptom tracker and health diary for adults living with recurring or chronic symptoms. Log flare-ups, possible triggers, medications, sleep, stress, food, weather, and daily context—then review a clearer history over time. TRACK WHAT MATTERS • Search a curated library of 286 symptoms, or add your own • Start with templates for migraine, digestive symptoms, chronic pain, fatigue and pacing, dizziness/POTS, or autoimmune flares • Record symptoms, possible triggers, medication context, mood, energy, bowel changes, sleep, stress, food, hydration, activity, caffeine, alcohol, and weather • Complete a focused check-in in minutes REVIEW YOUR HISTORY • Keep check-ins in one private timeline • See basic weekly summaries and transparent personal-pattern insights • Review the observation period and available evidence behind every insight • Mark factors or entries that should be excluded from analysis PREPARE FOR APPOINTMENTS • Create clear PDF or CSV reports • Choose a date range and the information you want to include • Share only when you explicitly decide to export OPTIONAL APPLE HEALTH CONTEXT Connect selected read-only Apple Health data types to add context to your check-ins. Symloom remains useful if you skip, limit, or disconnect Apple Health. PRIVATE BY DESIGN Symloom does not use health information for advertising or retargeting. Your symptom labels, medication names, notes, severity values, reports, and raw Apple Health values are never sent to product analytics. Symloom helps you organize and communicate your history. It does not diagnose conditions, identify causes, recommend treatment, or replace professional medical care. Terms of Use (EULA): https://symloom.com/terms Privacy Policy: https://symloom.com/privacy
Screenshots
Verdict
The clearest difference is update cadence: Symloom at every 3 weeks against Tether's every 2 months. On price, ads, in-app purchases and device support 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. Tether sells 3 in-app purchases, starting at $4.99 per month and Symloom sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
Tether ships an update every 2 months, Symloom every 3 weeks. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.
| Parameter | Tether | Symloom |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 39 MB | 66 MB |
| Age rating | 17+ | 4+ |
| Developer | Zachary Lyons | AppEcho Labs ,LLC |
In-app purchases
Tether
- Tether Premium$4.991 Month
- Tether Premium$39.991 Year
- Tether Premium$79.99
Symloom
- Trace Pro Monthly$7.991 Month
- Trace Pro Annual7 Days trial$39.991 Year








