Comparison

Tether vs Symloom

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Tether

Features
Read full description

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/

About

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.

Highlights
  • 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
Features
Read full description

Symloom is a private symptom tracker and health diary for adults living with recurring or chronic symptoms. Record flare-ups and the daily context around them, then review a clearer history over time. TRACK WHAT MATTERS • Log symptoms and flare-ups in seconds • Add possible triggers and medication context • Record sleep, stress, mood, food, activity, hydration and weather • Keep your check-ins organized in one timeline REVIEW YOUR HISTORY • See transparent personal-pattern insights over time • Review the observation period and available evidence behind each insight • Understand which factors changed alongside your symptoms without treating an association as a cause • Compare recent patterns and weekly changes PREPARE FOR APPOINTMENTS • Create clear PDF or CSV reports • Select the date range and information you want to include • Bring a more organized symptom history to appointments • Export or share only when you decide Symloom helps you organize and communicate your health history. It does not diagnose conditions, determine causes, recommend treatment or replace professional medical care. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Tether4 screens
Symloom4 screens

Verdict

The call

Tether and Symloom are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

Tether ships an update every 2 months, Symloom monthly. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

ScorecardNo meaningful differences
Tether versus Symloom: the parameters behind the verdict, then further details
ParameterTetherSymloom
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.1 — better16.0
Further details — not scored
Size39 MB110 MB
Age rating17+4+
DeveloperZachary LyonsAppEcho Labs ,LLC

In-app purchases

3 purchases

Tether

Subscriptions2
  • Tether Premium$4.991 Month
  • Tether Premium$39.991 Year
One-time1
  • Tether Premium$79.99
2 purchases

Symloom

Subscriptions2
  • Trace Pro Monthly$7.991 Month
  • Trace Pro Annual7 Days trial$39.991 Year

Questions

Is Tether free?
Tether is free to download, with in-app purchases available.
Is Symloom free?
Symloom is free to download, with in-app purchases available.
Do Tether or Symloom have ads?
Neither Tether nor Symloom shows ads.
Which is updated more often, Tether or Symloom?
Tether ships an update every 2 months, and Symloom monthly. Most recently, Tether was updated on October 10, 2026 and Symloom on October 8, 2026.

Other comparisons