Master Solutions vs PreOpApp Kids
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Master Solutions
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We started in 2007 to provide our services to our customers through a set of life skills. The development of work includes a set of strategic institutions with leading alliances in the administrative and educational fields.
PreOpApp Kids
This app uses interactive games and friendly characters to help children and their families feel less anxious about upcoming surgery. It provides visual preparation, smart guidance, and resources for parents, aiming to build confidence and reduce stress.
- Interactive games for hospital familiarization
- Friendly characters for reassurance
- Kid-friendly visual preparation stories
- Smart reminders for surgical preparation
- Parent resources and guidance
- Physiology-responsive calming experiences
- Motivational challenges for anesthesia induction
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PreOpApp™ Kids is a patent-pending pediatric surgery preparation app with innovative technology designed to make preparing for surgery easier and less stressful for children and families. Created by a pediatric anesthesiologist, PreOpApp™ Kids helps parents and caregivers prepare their child for surgery and anesthesia with child-friendly education, calming tools, fasting reminders, stories, and interactive activities. Key Features: Interactive Games: Engaging, age-appropriate activities that help children become familiar with the hospital and operating room environment while encouraging calm breathing, focus, and emotional regulation. Practice blowing into the anesthesia mask with Little Hottie™! Also practice making a calming, centering Mandala that will sync with your child’s heart rate on the day of surgery with Mandala Sync™! Friendly Characters: A spark of courage flame (Little Hottie™), a cheerful goldfish, a cuddly sheep, a curious kitten, and other companions guide children through their surgical journey with warmth and reassurance. Kid-Friendly Hospital Preparation: Visual storytelling helps children understand what happens before surgery, reducing fear of the unknown and helping them feel more prepared. Download the Dream Fetcher interactive book today, available in the Kid Zone of PreOpApp™ Kids. Smart Guidance: Gentle, timely reminders that support surgical preparation, reduce last-minute stress, ease the burden on busy families, and help everyone stay on track. Enter your child’s arrival time for their surgery and this app will tell you what to do next to prepare your child. No stress. Future versions of PreOpApp™ Kids are designed to support secure integration with hospital systems to further improve communication between families and their surgical and anesthesia teams. Parent Resources: Practical guidance and tips for caregivers to help prepare their child for surgery with confidence. Beyond Preparation: Utility on the Day of Surgery Clinical Support: PreOpApp™ Kids can be used by anesthesiologists, CRNAs, CAAs, child life specialists, and other anesthesia team members to help support calmer transitions during induction of anesthesia. It can also support children in the preoperative holding area and provide comfort during transport to the operating room. Physiology-Responsive Experiences: A key innovation of PreOpApp™ Kids is that its games gently synchronize with a child’s natural breathing rhythm and heart rate. Visual and audio elements flow in real time with the child, creating a calming, immersive experience that supports connection and comfort during anesthesia induction. Motivational Challenges: Interactive games that invite children to remember playful details as they drift off to sleep — a modern, engaging alternative to familiar counting challenges like “How high can I count?” during anesthesia induction or counting sheep to fall asleep. Buy Mandala Sync™ today in the Kid Zone of PreOpApp™ Kids. Why PreOpApp™ Kids? Surgery can be overwhelming for children and families. By blending evidence-based approaches with engaging games and interactive technology, PreOpApp™ Kids makes preparation feel less scary and more empowering. Children learn what to expect, families feel supported, and the hospital experience becomes calmer for everyone involved. Created by a pediatric anesthesiologist, PreOpApp™ Kids is designed to complement the care children receive in hospitals while giving parents peace of mind that their child feels safe, supported, and ready. PreOpApp™ Kids: Turning surgery prep into a journey of learning, confidence, and calm — from at home to the operating room. Educational guidance is based on published anesthesia guidelines and supporting literature: sources available inside the app.
Screenshots
Verdict
The clearest difference is in-app purchases: Master Solutions at none against PreOpApp Kids's 3. Master Solutions also leads on update cadence (every 3 days vs every 11 days). On price, ads, device support 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
Both are free to download. PreOpApp Kids sells 3 one-off in-app purchases. Master Solutions asks for nothing beyond the download.
Master Solutions ships an update every 3 days, PreOpApp Kids every 11 days. Both last shipped on October 30, 2026.
| Parameter | Master Solutions | PreOpApp Kids |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (17 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 17 — better |
| Update frequency | Every 3 days — better | Every 11 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 75 MB | 1.0 GB |
| Age rating | 4+ | 4+ |
| Developer | EMCAN-TEC | LN Welsh MD Anesthesiologist, LLC |
In-app purchases
Master Solutions
No in-app purchases
PreOpApp Kids
- Little Hottie$2.99
- Mandalasync Game$2.99
- Dream Fetcher Book$9.99
Questions
Is Master Solutions free?
Is PreOpApp Kids free?
Do Master Solutions or PreOpApp Kids have ads?
Which is updated more often, Master Solutions or PreOpApp Kids?
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