Comparison

Tether vs Sjogrens Tracker

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

Sjogrens Tracker

Features
Read full description

Sjögren's wears you down in ways no one else sees. The dryness, the fatigue that floors you by noon, the brain fog mid-sentence, the joint ache that arrived months before anyone said "autoimmune." Sjögren's Tracker turns that scattered daily reality into one clear picture you can show your rheumatologist, eye doctor, and dentist without repeating your whole history every visit. Built for newly diagnosed patients, long-term patients managing extraglandular involvement, and caregivers. Covers primary Sjögren's, secondary Sjögren's with RA, lupus, or scleroderma, seronegative Sjögren's, SS-related interstitial lung disease, SS-related small fiber neuropathy, and lymphoma surveillance. TRACK YOUR SYMPTOMS - Dry eye severity, OSDI score, Schirmer time, foreign body sensation, photophobia - Dry mouth, dysphagia, parotid swelling, dental caries, oral candidiasis - Fatigue intensity, recovery time, and post-exertional crashes - Joint pain by joint, morning stiffness duration, swelling - Brain fog, word-finding misses, memory lapses - Neuropathy episodes, sensory versus motor, small fiber patterns - Raynaud's attacks and vasculitis skin signs - Lung symptoms, dyspnea, dry cough - GI involvement, esophageal dysmotility, reflux - Genitourinary dryness MEDICATIONS - Hydroxychloroquine (Plaquenil), dose and refills - Pilocarpine (Salagen) and cevimeline (Evoxac) for sicca - Cyclosporine drops (Restasis) and lifitegrast (Xiidra) - Low-dose naltrexone for fatigue and pain - Rituximab infusion dates, premeds, reactions - Methotrexate, prednisone, IVIG cycles - Side effects and pharmacy refill reminders TRIGGERS AND FACTORS - Air conditioning, dry climate, low humidity days - Antihistamines and anticholinergic burden - SSRIs and other drying medications - Stress, infection, sleep loss, dehydration - Dietary triggers and alcohol LABS AND INSIGHTS - Anti-Ro/SSA, anti-La/SSB, ANA titer and pattern - Rheumatoid factor, ESR, CRP - Complement C3 and C4, IgG, IgA, IgM - Cryoglobulins, urinalysis for renal involvement - Salivary gland biopsy notes and salivary flow rate - Pearson correlations across symptoms, labs, triggers, and sleep - Trend charts that turn months of logs into one clear view SHARE WITH YOUR DOCTOR - PDF reports built for rheumatology, ophthalmology, dentistry - Dedicated sections for ENT, pulmonology, and neurology - Sjögren's patients see four to seven specialists, one chart saves repeating the history each visit - Export your data any time, in two taps CARE PLAN AND PATHWAYS - Eye drop schedule and oral care prompts - Hydration goals, sun protection, dental prevention protocol - Exercise pacing for fatigue and mindfulness for stress - Pathways education on Sjögren's pathophysiology and lymphoma risk awareness - A daily check-in routine you can finish in under a minute PRIVACY AND ACCESSIBILITY - Encrypted storage, no community required - Export and delete on demand - 50 languages with VoiceOver and TalkBack support - Dark mode and large text Download Sjögren's Tracker now and take charge of your sicca symptoms and extraglandular care. You deserve to walk into every appointment with one clear picture instead of a year of guesswork. Sjögren's Tracker is for informational and personal tracking use only. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional for medical concerns. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Tether4 screens
Sjogrens Tracker4 screens

Verdict

The call

The clearest difference is device support: Sjogrens Tracker at 4 against Tether's 2. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Tether sells 3 in-app purchases, starting at $4.99 per month and Sjogrens Tracker sells 10 in-app purchases, starting at $4.95 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 5 level
Tether versus Sjogrens Tracker: the parameters behind the verdict, then further details
ParameterTetherSjogrens Tracker
PriceFreeFree
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.1 — better15.5
Further details — not scored
Size39 MB202 MB
Age rating17+12+
DeveloperZachary LyonsDigital Therapeutics

In-app purchases

3 purchases

Tether

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

Sjogrens Tracker

Subscriptions8
  • Flex Pass$4.951 Month
  • Sjogrens Tracker Weekly$6.997 Days
  • monthly access$9.991 Month
Show 5 more
  • Yearly Access$24.991 Year
  • smart pass$29.991 Month
  • premium sale$29.991 Year
  • yearly access$39.991 Year
  • yearly access3 Days trial$59.991 Year
One-time2
  • Sjogrens Care Plan$9.99
  • Sjogrens Lifetime Upgrade$149.99

Questions

Is Tether free?
Tether is free to download, with in-app purchases available.
Is Sjogrens Tracker free?
Sjogrens Tracker is free to download, with in-app purchases available.
Do Tether or Sjogrens Tracker have ads?
Neither Tether nor Sjogrens Tracker shows ads.

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