Comparison

Pebbly Nudge vs Flint

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
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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

Flint

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Can't start that task? Just say it out loud. Flint captures your voice, turns it into an action, and helps you actually do it β€” with a visual timer that makes time feel real. Built specifically for the ADHD brain. β€” VOICE BRAIN DUMP β€” Speak instead of type. Say everything on your mind and Flint organizes it into tasks you can act on. No blank screens. No overwhelm. Just talk. β€” FLOW SESSIONS β€” Pick a task. Start a timed session with a visual countdown ring. Gentle haptic nudges keep you grounded without breaking focus. Step by step, one thing at a time. β€” TIME SENSE β€” ADHD time blindness makes 10 minutes feel like 2 hours. Flint makes time tangible β€” you see it, feel it through gentle pulses, and finally understand where it goes. β€” NO STREAKS. NO GUILT. β€” Missed a day? Start fresh. Flint doesn't punish you for being human. No streak counters. No guilt trips. Progress isn't linear, and that's okay. β€” TRACK YOUR JOURNEY β€” See your focus minutes, brain dumps, and active days. Weekly insights show patterns without pressure. Celebrate progress on your own terms. β€” FLINT PRO β€” Unlock your full potential: β€’ Personalized focus session recipes β€’ Deeper Time Sense analytics β€’ Premium soundscapes for deep work β€’ Calendar-aware smart reminders β€” WHY FLINT? β€” Most productivity apps assume your brain works like everyone else's. Flint doesn't. It was built from real ADHD experiences β€” the paralysis, the time blindness, the guilt cycle. Every feature exists because someone with ADHD needed it. Your brain isn't broken. It just needs the right spark. Download Flint and strike your first spark today. Privacy Policy: https://akaminski23.github.io/flint-legal/privacy.html Terms of Use: https://akaminski23.github.io/flint-legal/terms.html

Screenshots

Pebbly Nudge4 screens
Flint4 screens

Verdict

The call

The clearest difference is in-app purchases: Pebbly Nudge at none against Flint'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. Flint sells 2 in-app purchases, starting at $4.99 per month. Pebbly Nudge asks for nothing beyond the download.

Scorecard1 real difference Β· 7 level
Pebbly Nudge versus Flint: the parameters behind the verdict, then further details
ParameterPebbly NudgeFlint
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 2 daysβ€”
AdsNoNo
In-app purchasesNo β€” betterYes
MonetizationFreeβ€”
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.615.1 β€” better
Further details β€” not scored
Size40 MB76 MB
Age rating17+12+
DeveloperHock Boon Steven OngAdam Kaminski

In-app purchases

None

Pebbly Nudge

No in-app purchases

2 purchases

Flint

Subscriptions2
  • Flint Pro7 Days trial$4.991 Month
  • Flint Pro Annual7 Days trial$39.991 Year

Questions

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

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