iChill vs PFA Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iChill
This app teaches six wellness skills based on the Trauma Resiliency Model to help manage stress and trauma. It guides users to understand and regulate their nervous system, promoting a balanced state for better well-being. Regular practice can reduce anxiety and depression symptoms.
- Teaches six wellness skills
- Based on Trauma Resiliency Model
- Helps regulate nervous system
- Promotes balanced 'Okay Zone'
- Reduces anxiety and depression symptoms
- Suitable for all ages
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Are you feeling stressed, not quite yourself, or worried about a loved one? iChill is here to help. iChill teaches six wellness skills from the Trauma Resiliency Model (TRM)® and Community Resiliency Model (CRM)® to help you manage sensations associated with trauma and stress, enhancing your well-being. Based on the biology of the human nervous system, iChill helps us understand and regulate our body's natural rhythms. When in harmony, our nervous system aids in navigating life's challenges, helping us make sound decisions for ourselves and our community. This balanced state is called the Resilient Zone or "Okay Zone." Stressful events can bump us into the High Zone (anxious, uptight) or Low Zone (numb, disconnected). iChill helps us return to our Okay Zone, restoring balance. Regular practice of these skills can reduce anxiety and depression symptoms, improving overall well-being. iChill benefits children, teens, and adults of all ages. It helps us answer the question, “What else is true?” leaning into our strengths to help manage distress in the present moment. iChill is not meant as a substitute for counseling with a licensed mental health professional. Learn more about iChill's developer, the Trauma Resource Institute, at traumaresourceinstitute.com.
PFA Mobile
This app assists responders in providing psychological first aid to adults, families, and children. It offers summaries of PFA fundamentals, interventions, mentor tips, a self-assessment tool, and a survivor needs form for data collection and referrals.
- PFA fundamentals summaries
- Interventions for specific survivor needs
- Mentor tips for field application
- Self-assessment tool for responder readiness
- Survivor needs form for data collection
- Easy referral system
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PFA Mobile was designed to assist responders who provide psychological first aid (PFA) to adults, families, and children as part of an organized response effort. This app provides responders with summaries of PFA fundamentals, PFA interventions matched to specific concerns and needs of survivors, mentor tips for applying PFA in the field, a self-assessment tool for readiness to conduct PFA, and a survivors' needs form for simplified data collection and easy referral. PFA Mobile was created by VA's National Center for PTSD in partnership with the National Child Traumatic Stress Network (NCTSN) and DoD's National Center for Telehealth & Technology.
Screenshots
Verdict
The clearest difference is review sentiment: PFA Mobile at 100% against iChill's 68%. PFA Mobile also leads on rating (4.5 vs 4.2). iChill's advantage is update cadence (every 5 months vs every 13 months) and ratings volume (35 vs 11). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
PFA Mobile holds the better App Store score, 4.5 against 4.2. Both are backed by a comparable volume of ratings — 35 and 11 respectively. Written reviews point the same way: 68% of iChill's written reviews are positive against 100% of PFA Mobile's.
iChill ships an update every 5 months, PFA Mobile every 13 months. The most recent releases landed on September 4, 2026 and June 10, 2026 respectively.
| Parameter | iChill | PFA Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (35 ratings) | 4.5 (11 ratings) — better |
| Positive reviews | 68.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 35 — better | 11 |
| Update frequency | Every 5 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 144 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Trauma Resource Institute, Inc. | US Department of Veterans Affairs (VA) |
Customer experience
iChill
PFA Mobile
In-app purchases
iChill
No in-app purchases
PFA Mobile
No in-app purchases









