Comparison

Pebbly Nudge vs Anchor

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Pebbly Nudge

This app offers a mental wellness companion inspired by CBT and habit-building techniques. It features an AI chatbot trained on research, journaling, guided breathing, and to-do lists to support self-care and improve mental resilience.

Highlights
  • AI-powered CBT chatbot
  • Guided journaling
  • Mindfulness exercises
  • To-do list integration
  • Gamified progress tracking
  • Personalized self-care
Features
Read full description

Inspired by self-help books, CBT therapy, and habit-building techniques, Pebbly Nudge App ("Nudge) was designed using the creator’s personal journey through loneliness and depression during COVID. Nudge aims to be a well-being companion, seamlessly blending mindfulness, productivity, and self-reflection into a beautifully intuitive app. The App integrates an AI-powered chatbot, journaling, guided breathing and to-do lists to support mental wellness. Nudge strives to make self-care accessible to those who may not have the means to afford professional or medical treatment, offering an empowering alternative for mental well-being. So begin your journey to improved mental resilienceβ€”one insightful entry at a time! Now for the AI geeky deep dive: A key feature of our platform is an AI-powered chatbot, meticulously trained on 108 peer-reviewed Cognitive Behavioral Therapy (CBT) research articles. Leveraging the creator's expertise in data engineering and model building, the chatbot was developed using Natural Language Processing (NLP) techniques to ensure contextually relevant and scientifically grounded responses. The chatbot was trained on 108 high-quality CBT research articles, which underwent preprocessing techniques such as text tokenization, stemming, and lemmatization to standardize language. Stop words, punctuation, and metadata were filtered out to refine the training dataset, improving model efficiency. The text corpus was converted into numerical representations using Word2Vec, TF-IDF, and BERT embeddings to capture semantic meaning and contextual relationships. Sentence similarity models were implemented to accurately match user queries to the most relevant research-backed responses. Various Transformer-based architectures (e.g., BERT, RoBERTa) and traditional machine learning classifiers (e.g., Random Forest, SVM, Logistic Regression) were tested to optimize accuracy (It reached an accuracy of 97.6%!). The model was fine-tuned using supervised learning on labeled datasets to enhance response precision. A human-in-the-loop validation process was implemented, where subject matter experts reviewed and approved chatbot responses to ensure adherence to CBT principles. The chatbot integrates user feedback loops and reinforcement learning to continuously refine its accuracy and relevance. The chatbot operates on a retrieval-based response generation mechanism, ensuring scientifically validated responses rather than generating freeform text. In summary: With a visually calming interface, gamified progress tracking, and AI-driven insights, Nudge redefines self-care with a highly personalized experience. More than just an app, Nudge is a movement toward accessible digital well-being. By blending AI-driven machine learning with psychological expertise, Nudge ensures that individuals worldwide receive inclusive, credible, and tailored mental health supportβ€”without barriers. Medical Disclaimer: This app does not provide medical diagnoses or treatment. It is intended for informational purposes only. Please consult a qualified healthcare professional before making any medical decisions.

About

Anchor

Features
Read full description

ADHD doesn't mean broken. It means your brain works differently β€” and it needs tools built for it. Anchor is the ADHD app built for adults who are tired of systems that weren't designed for them. No judgment. No fluff. Just structure that actually works. AI Coach Finn β€” a warm, direct coach available anytime you need to think out loud, get unstuck, or just feel less alone. Morning & Evening Check-ins β€” track your mood, energy, and motivation daily to spot your patterns. 155 Evidence-Based Lessons β€” bite-sized modules across focus, emotional regulation, relationships, and more. Focus Timer β€” grow your plant companion while you work, breathe, and stay present. Routines & Habit Tracker β€” build consistency without the shame spiral. Gamification β€” earn XP, unlock trophies, climb the leaderboard, spin the wheel. Community β€” connect with others who actually get it. Free 7-day trial. Then $9.99/month or $59.99/year. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://anchoradhd.app/privacy.html

Screenshots

Pebbly Nudge4 screens
Anchor4 screens

Verdict

The call

The clearest difference is in-app purchases: Pebbly Nudge at none against Anchor's 2. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Anchor sells 2 in-app purchases, starting at $9.99 per month. Pebbly Nudge asks for nothing beyond the download.

Scorecard1 real difference Β· 7 level
Pebbly Nudge versus Anchor: the parameters behind the verdict, then further details
ParameterPebbly NudgeAnchor
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 2 daysβ€”
AdsNoNo
In-app purchasesNo β€” betterYes
MonetizationFreeβ€”
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 β€” better16.4
Further details β€” not scored
Size40 MB58 MB
Age rating17+12+
DeveloperHock Boon Steven OngMAXIMUS OLIVER HELFRICH

In-app purchases

None

Pebbly Nudge

No in-app purchases

2 purchases

Anchor

Subscriptions2
  • Anchor Pro Monthly7 Days trial$9.991 Month
  • Anchor Pro Yearly7 Days trial$59.991 Year

Questions

Is Pebbly Nudge free?
Pebbly Nudge is free to download, with no in-app purchases.
Is Anchor free?
Anchor is free to download, with in-app purchases available.
Do Pebbly Nudge or Anchor have ads?
Neither Pebbly Nudge nor Anchor shows ads.

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