Comparison

PTSD Tracker vs Undercurrent

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

Head to head
About

PTSD Tracker

Features
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Presta PTSD Tracker helps you manage the lasting effects of trauma by turning daily tracking into progress and understanding. It combines evidence-based tools to reduce flashbacks, anxiety, nightmares, and hypervigilance while improving focus, sleep, and emotional balance. Built for those living with trauma, Presta helps you regain control of your mental health with data-driven insights and personalized structure. Reclaim Control Over PTSD - Fast, easy symptom logging - Record panic attacks, intrusive memories, dissociation episodes, or stress triggers in seconds. Recognize patterns behind your emotional and physical responses. - Mood, sleep, and medication tracking - See how rest, treatment, and routines affect your symptoms and overall mental health. - Smart analytics and insights - Visual dashboards reveal correlations between sleep quality, stress levels, and symptom intensity, helping you identify what supports your recovery. - Exportable progress reports - Generate detailed PDF or CSV summaries to share with your therapist, psychologist, or physician for more effective treatment planning. - Personalized reminders - Set reminders for journaling, mindfulness exercises, medication intake, or therapy appointments to stay consistent in your self-care routine. - Advanced journaling - Use structured notes and reflections to document flashbacks, grounding techniques, or thoughts after therapy sessions. - Secure health records - Store sensitive data safely with end-to-end encryption and optional Face ID or Touch ID for privacy and peace of mind. Built for Everyday Use - Clean, minimal interface designed to reduce overwhelm and encourage daily tracking. - Apple Health integration - Sync sleep, activity, and mindfulness data to connect physical and emotional wellness in one place. - Goal tracking - Define mental health goals such as improving sleep or reducing panic frequency and monitor your progress over time. - Correlation detection - Identify how environmental factors, routines, or medications impact your symptoms and recovery outcomes. - Cloud backup - Keep your data safely stored and accessible across multiple devices. - Offline mode - Record entries anytime without needing an internet connection. - Frequent updates - Benefit from continuous feature improvements and refinements to ensure the best tracking experience. Go Beyond Symptom Tracking - Personalized PTSD management plan - Follow guided plans that help manage avoidance, insomnia, flashbacks, and anxiety triggers step by step. - Educational content - Access curated mental health articles and coping strategies for trauma recovery, emotional regulation, and grounding techniques. - Health diary - Combine notes, habits, and daily logs in one secure personal health journal to gain a complete view of your well-being. - Integrations with fitness and mindfulness tools - Track how physical activity, breathing exercises, or meditation influence stress and symptom reduction. - Care coordination - Use your reports and insights to collaborate better with healthcare professionals and improve treatment outcomes. Start Building Stability Today Setup is simple - download, personalize, and begin tracking your journey within minutes. Choose a flexible subscription plan that fits your needs and manage it directly through the Apple Store. Every feature is built to help you understand your symptoms, manage your triggers, and reclaim balance in your daily life. Presta turns awareness into recovery by helping you monitor progress, improve communication with your care team, and strengthen resilience one entry at a time. Start your path to calm, confidence, and control today. Any insights provided by Presta PTSD Tracker do not constitute medical advice. The app is designed for tracking purposes only and is not intended to diagnose, treat, cure, or prevent any disease or condition. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Undercurrent

Features
Read full description

You know something is off, but what? Headaches that seem random. Energy that crashes for no reason. You suspect a pattern, but every time the doctor asks "have you noticed any patterns?" you draw a blank. Undercurrent is a private notebook for the small things, and the patterns hiding inside them. LOG IN FOUR TAPS OR FEWER Symptoms, food, medications, activities, and observations. Quick chips for what you log most. Or just tell the on-device AI assistant in plain language: "headache after lunch" and it handles the rest. WHAT WE'VE NOTICED Once you've logged a few events, the Insights page surfaces co-occurrences in your own data, phrased in soft language. None of it claims to cause anything. You decide if it's signal or noise. • Pre-window pattern: what tends to show up in the hours before symptoms • Time-of-day cluster: when symptoms tend to gather • Day-of-week peak: which days run hottest • Recurring sequence: a familiar arc, repeated • Co-occurrence: tags that appear alongside symptoms • Seasonality: a year, at a glance (Pro) • Environment: weather, pressure, humidity, air quality (Pro) • Long-term cycles and intervention effectiveness (Pro) A REPORT YOU CAN HAND TO YOUR CLINICIAN (Pro) One tap exports an editorial PDF: auto-numbered observations, frequency tables, time-of-day distributions, and an event log. Black-and-white printable, sized for a five-minute appointment. No portal login on the other end. APPLE HEALTH INTEGRATION (Pro) Pull in workouts and mindful sessions automatically. The data stays on your device and is folded into the same patterns engine. TRACK MULTIPLE PEOPLE (Pro) Separate threads for yourself, your kids, or anyone you care for. Each thread gets its own timeline, observations, and reports. 100% PRIVATE BY DEFAULT • No account required, start logging immediately • All data stored locally on your device • AI runs on-device using Apple Intelligence; nothing is sent to a server to be analysed • Optional iCloud backup, protected by Apple's encryption • No analytics, no tracking, no ads BUILT ON PUBLISHED RESEARCH Self-monitoring is the most effective technique in digital health interventions for chronic conditions, backed by analysis of 85 clinical studies. Smartphone diaries have been shown to identify real triggers; visual diary summaries help patients and providers focus on actionable plans. FREE FOREVER • Unlimited logging of symptoms, food, meds, actions, observations • Today, Timeline, and Calendar views • AI chat assistant for plain-language logging • Basic Insights: pre-window, time-of-day, day-of-week, sequences, co-occurrences • Local-only data, stays on your device UNDERCURRENT PRO Ā· ONE-TIME PURCHASE Ā· $19.99 Pay once, keep everything forever. No subscription, no recurring charges. • Weather, pressure, and humidity correlations • Long-term cycles, seasonality, intervention effectiveness • Editorial PDF report for your clinician with full observation set • Track multiple people, with separate threads for each • Apple Health sync • iCloud backup Whether you're trying to figure out what shows up before your migraines, why your energy crashes after lunch, which foods leave you uncomfortable, or what helps your child sleep better, Undercurrent gives you a quiet place to write it down and the patterns that emerge over time. NOT A MEDICAL DEVICE Undercurrent describes statistical co-occurrences in your self-logged data. It is not intended to diagnose, treat, cure, or prevent any disease. Observations are informational only, not medical advice. Always consult a qualified healthcare professional about symptoms, medications, or treatment decisions. In an emergency, call your local emergency number. Notice what's quietly shaping how you feel.

Screenshots

PTSD Tracker4 screens
Undercurrent4 screens

Verdict

The call

The clearest difference is ads: Undercurrent at none against PTSD Tracker's shown. PTSD Tracker's advantage is device support (4 vs 2). On price, in-app purchases and iOS requirement there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. PTSD Tracker sells 13 in-app purchases, starting at $4.95 per month and Undercurrent sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences Ā· 4 level
PTSD Tracker versus Undercurrent: the parameters behind the verdict, then further details
ParameterPTSD TrackerUndercurrent
PriceFreeFree
Update frequency—Every 2 weeks
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.515.1 — better
Further details — not scored
Size200 MB69 MB
Age rating12+12+
DeveloperDigital TherapeuticsLloyd Rowat

In-app purchases

13 purchases

PTSD Tracker

Subscriptions12
  • steady pass$4.951 Month
  • easy pass$7.997 Days
  • weather max$9.993 Months
Show 9 more
  • flex pass$18.991 Month
  • carey ai max$19.991 Month
  • smart pass2 variants$19.991 Year
  • carey ai ultra$29.991 Month
  • limited sale$29.991 Year
  • select pass$34.991 Year
  • your free pass3 Days trial$39.991 Year
  • free access3 Days trial$39.991 Year
  • 7-Day Trial7 Days trial$49.991 Year
One-time1
  • carey ai credits$8.99
1 purchases

Undercurrent

One-time1
  • Undercurrent Health: Pro$19.99

Questions

Is PTSD Tracker free?
PTSD Tracker is free to download, with in-app purchases available.
Is Undercurrent free?
Undercurrent is free to download, with in-app purchases available.
Do PTSD Tracker or Undercurrent have ads?
PTSD Tracker shows ads; Undercurrent does not.

Other comparisons