KidTrauma vs Hidden Hum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KidTrauma
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KidTrauma is an application developed for parents to support their child in the early aftermath of a traumatic event. Main features: - Trauma-Check: Evidence-based screening questionnaire to check if professional advice is recommended - Age specific information about how to support the child - Individual advice how to deal with the child’s symptoms - Contact details for referrals to mental health professionals - Downloads About us: The KidTrauma application was developed by Professor Markus Landolt from the University Children´s Hospital Zurich, Switzerland. Professor Landolt is trained as a family and behavioral therapist and specialized in clinical work and research with traumatized children and their parents. Responsible for the content: - Prof. Markus Landolt; PhD - Ines Jenni, MSc
Hidden Hum
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Hidden Hum is a first-of-its-kind Early Skills Profiler that celebrates your child’s unique growth journey from birth to age 5. It offers clear insights into their developmental progress, growth outcomes, and personalised recommendations. 1. Quick, engaging, and easy to use 2. Thoughtfully designed experience that keeps you involved and curious 3. Built around your inputs to better understand and support your child 4. Get a detailed Early Skills Profile in under 6 minutes 5. Monitor development across key domains to understand your child’s everyday skills with clarity and confidence
Screenshots
Verdict
The clearest difference is update cadence: Hidden Hum at every 3 weeks against KidTrauma's every 12 months. KidTrauma's advantage is iOS requirement (12.2 vs 14.0). 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. Neither carries in-app purchases, so what you see is what you pay.
KidTrauma ships an update every 12 months, Hidden Hum every 3 weeks. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.
| Parameter | KidTrauma | Hidden Hum |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 12 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.2 — better | 14.0 |
| Further details — not scored | ||
| Size | 126 MB | 97 MB |
| Age rating | 4+ | 4+ |
| Developer | Markus Landolt | Divamo Well Being Private Limited |
In-app purchases
KidTrauma
No in-app purchases
Hidden Hum
No in-app purchases








