Molehill Mountain vs Worth Warrior
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Molehill Mountain
This app helps autistic individuals understand and manage anxiety using Cognitive Behavioural Therapy (CBT). It allows users to track worries, identify triggers, and access daily tips and interactive activities designed to address common anxieties.
- Anxiety tracking and trigger identification
- Daily tips for understanding anxiety
- Mini-tips for common autistic anxieties
- Interactive CBT activities
- Pattern and trend identification
- Personalized check-ins
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Molehill Mountain has been developed by Autistica and King’s College London to help autistic people understand and self-manage their anxiety. We have worked with closely autistic people at every stage in developing Molehill Mountain to ensure that it is easy for autistic people to use and is relevant to their needs. Molehill Mountain is based on Cognitive Behaviour Therapy (CBT), a well-established and clinically proven technique for managing the symptoms of anxiety. The app has been developed with the full involvement of Professor Emily Simonoff, Dr Ann Ozsivadjian and Dr Rachel Kent from the Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King’s College London. Most autistic people experience anxiety on a regular basis. Around eight out of ten will have symptoms of anxiety – and of these, three or four will have enough symptoms to be given a diagnosis of anxiety disorder. Molehill Mountain allows you to track your worries and identify the situations that trigger your anxiety. Your daily check-ins are plotted on a chart which allows you to identify pattern and trends – and you can also display a previous check-in to help you identify recurring triggers for your anxiety. Over time, you unlock tips that will help you to understand your anxiety and learn ways to manage it. The daily tips have been completely rewritten for this new version of Molehill Mountain. In addition, we have added dozens of extra mini-tips to cover many of the common causes of anxiety and stress in autistic people, such as hypersensitivity to noise, light and touch or difficulties with social situations and communication. The app also has interactive CBT activities which you can use at any time. These draw upon well-established and clinically proven techniques and are designed to help you to recognise and overcome unhelpful patterns of thinking. The development of Molehill Mountain has been supported by: • The Maudsley Charity • The Worshipful Company of Information Technologists’ Charity • The Pixel Fund Autistica Autistica is the UK’s national autism research charity. They exist to create breakthroughs that enable every autistic person to live a happy, healthy and long life. They do so by: • Shaping and growing research across the UK • Funding new and innovative research solutions • Campaigning for better services and shaping national policy • Sharing evidence-based tools, resources, and information https://www.autistica.org.uk/ @Autistica The Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King’s College London King’s College London is one of the top 10 UK universities in the world (QS World University Rankings, 2018/19) and among the oldest in England. King’s has more than 31,000 students (including more than 12,800 postgraduates) from some 150 countries worldwide, and some 8,500 staff. The Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King’s College London is the premier centre for mental health and related neurosciences research in Europe. It produces more highly cited outputs (top 1% citations) on mental health than any other centre (SciVal 2019) and on this metric we have risen from 16th (2014) to 4th (2019) in the world for highly cited neuroscience outputs. World-leading research from the IoPPN has made, and continues to make, an impact on how we understand, prevent and treat mental illness and other conditions that affect the brain. https://www.kcl.ac.uk/ioppn @KingsIoPPN
Worth Warrior
This app helps young people manage negative body image, low self-worth, and early-stage eating difficulties. It uses Cognitive Behavioural Therapy principles to challenge negative thoughts and behaviors, offering tools for self-soothing and positive change.
- Challenge negative self-thoughts
- Alter negative behaviors
- Develop self-soothing techniques
- Separate fact from assumption about body image
- Access information on eating disorders
- Build a safety net of support
- Journal thoughts and feelings
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‘To hit a target of worth takes practice and courage. Believe you can do it, keep trying and you will get there.’ Worth Warrior is a free app created for young people to manage negative body image, low self-worth, and related early-stage eating difficulties or disorders. Created for teenage mental health charity stem4 by Dr Krause, a Consultant Clinical Psychologist, in collaboration with young people, the app uses principles from the evidence-based Cognitive Behavioural Therapy for eating disorders (CBT-E). Like all stem4's award winning apps, it is free, private, anonymous, and safe. The app provides a range of helpful activities and information, based on the notion that through learning to challenge and change thoughts, emotions, behaviours, and body image issues underlying low self-worth, eating and body related issues can be helped. By identifying these underlying factors, and monitoring them over time, you can also start to identify what your triggers and maintaining factors are and work towards making positive change. The ‘Change the Story’ section of the app helps identify negative self thought and learn how to substitute positive self-thoughts. ‘Change the Action’ focuses on identifying negative behaviours and altering them. In ‘Change the Emotion’ users are provided with alternative, self soothing behaviours to manipulate their eating and in ‘Change the way I view my Body’ users are taught how to separate fact from assumption. There is also a range of information within the app for users to learn more about eating disorders, such as the importance of regular eating and hunger, the health consequences of eating-related behaviours, and issues that maintain eating disorders. The app also allows users to build a ‘safety net’ of helpful thoughts, behaviours and people to contact, and signposts to help. Finally, users can monitor and keep track of which app activities help, record thoughts and feelings in a journal, and view daily motivators. We understand the importance of privacy and so no identifiable data is collected in the app and no WIFI access or data is required. It is built to NHS standards. Please note that the Worth Warrior app is an aid in treatment but does not replace it. Worth Warrior is the latest app in stem4’s digital portfolio of apps that use evidence-based principles to help young people manage the symptoms of mental health difficulties and disorders. As of June 2022, stem4’s existing apps (Calm Harm, Clear Fear, Combined Minds and Move Mood) have been downloaded over 3.25 million times, and have received various awards including: The Digital Leaders 100 Awards ‘Tech for Good Initiative of the Year’ in 2020, for stem4’s full app portfolio The Health Tech Awards Winner ‘Best Healthcare App of the Year’ in 2021, for Calm Harm The CogX Awards Winner in ‘Good Health and Well-Being’ in 2020, for Clear Fear
Screenshots
Verdict
The clearest difference is rating: Molehill Mountain at 4.7 against Worth Warrior's 4.0. Molehill Mountain also leads on update cadence (monthly vs every 4 months) and ratings volume (106 vs 3). Worth Warrior's advantage is iOS requirement (13.4 vs 15.6). On price, review sentiment, ads and in-app purchases 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.
Molehill Mountain holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Molehill Mountain has 106 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 56% of Molehill Mountain's written reviews are positive against 50% of Worth Warrior's.
Molehill Mountain ships an update monthly, Worth Warrior every 4 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | Molehill Mountain | Worth Warrior |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (106 ratings) — better | 4.0 (3 ratings) |
| Positive reviews | 56.3% of reviews — better | 50.0% of reviews |
| Number of ratings | 106 — better | 3 |
| Update frequency | Monthly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.4 — better |
| Further details — not scored | ||
| Size | 25 MB | 38 MB |
| Age rating | 17+ | 12+ |
| Developer | Autistica apps | Stem4 |
Customer experience
Molehill Mountain
Worth Warrior
In-app purchases
Molehill Mountain
No in-app purchases
Worth Warrior
No in-app purchases
Questions
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