QuestPrehab™ vs ReFleks
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QuestPrehab™
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The QuestPrehab App helps people prepare for major medical intervention such as surgery or cancer treatment. QuestPrehab App (formerly Craetus) is created to help you build strength, physical and psychological, to ensure you are at your fittest to take on the challenge of a medical intervention such as cancer treatment or surgery. The app is designed by specialists recognised for their expertise in Prehab. The app is a virtual and accessible friend, holding your hand, guiding you and motivating you through your daily fitness journey. Promising results have already been reported with the use of apps to improve adherence and outcomes in other health areas, such as weight loss and diabetes management. In collaboration with specialist guidance, the app aims to improve your confidence in adherence and compliance with your personalised Prehab plan. Easier to access than paper handouts and allows your Prehab expert to adjust your quests and offer support based on your input. Dual effects of not only ensuring you meet your daily quests, also assuring you are increasing your functional reserve by gradual and supervised increase in the challenge. We wish you good luck in living your best life, through and beyond any medical intervention, cancer or surgery.
ReFleks
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At ReFleks we are developing new treatments for Osteoarthritis. In the UK, 8 million people have osteoarthritis. It is a disabling disease caused by the breakdown of cartilage in the joint. One of the main causes of Osteoarthritis is a joint injury – but not everyone who has a joint injury will develop osteoarthritis. We want to understand why this is and who is most at risk. Then we can identify who will benefit from our treatments. A major problem in creating treatments for Osteoarthritis is that very few patients worsen within one year and therefore, showing benefit is very difficult and costly. At Bone & Joint Health we are starting a new study funded by the NIHR Barts BRC - the North East London Osteoarthritis (NELOA) study - which aims to identify markers to predict patient's prognosis. This can be done via blood tests, for instance. Such test would enable us to know who to treat and when, and to assess benefit in real time, without the need to wait years to see progression of joint damage. Our ReFleks App has been created together with Deep-C Vision and funded by the UKRI. You may have been invited to download this app if you have recently had a knee injury and have been invited to join our NELOA study.
Screenshots
Verdict
The clearest difference is update cadence: ReFleks at every 3 weeks against QuestPrehab™'s every 3 months. QuestPrehab™'s advantage is iOS requirement (13.0 vs 15.6). 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.
QuestPrehab™ ships an update every 3 months, ReFleks every 3 weeks. The most recent releases landed on October 1, 2026 and September 16, 2026 respectively.
| Parameter | QuestPrehab™ | ReFleks |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 62 MB | 44 MB |
| Age rating | 12+ | 17+ |
| Developer | C Digital Healthcare Ltd | Deep-C Vision |
In-app purchases
QuestPrehab™
No in-app purchases
ReFleks
No in-app purchases








