Chart AI vs Napkin Dōjō
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chart AI
This app uses artificial intelligence to analyze trading charts in seconds. Upload a chart image to get detailed insights on trade ideas, trends, market structure, and indicators. Save your analyses for future reference or to scan more charts.
- AI-powered chart interpretation
- Trade idea analysis
- Trend and market structure identification
- Liquidity zone and order block detection
- Indicator analysis
- Save and revisit analyses
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Chart AI leverages artificial intelligence to help you interpret candlestick trading charts in seconds, using the following steps: 1.) Upload a screenshot or take a photo of any trading chart. 2.) Receive a detailed analysis in seconds of: *Trade Idea *General Trend *Market Structure *Liquidity Zones *Order Blocks and Fair Value Gaps *Indictor Analysis 3.) Save your analysis so that you can revisit it later or scan another chart Chart AI can be used by beginners to help better understand the market or for seasoned traders and investors who would like to validate market movement. *Note: Chart AI requires a USD$3.99 weekly, $14.99 monthly or $49.99 annual subscription. *Subscription allows the user to upload unlimited images of trading charts to receive technical analysis. *Note: Chart AI does not provide financial advice. Any and all information is for educational purposes only and we suggest consulting with a professional and engaging in your own due diligence before investing. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://www.chartaiapp.com/privacypolicy
Napkin Dōjō
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A dojo is where you go to train. You show up with intention, you practice something real, and you leave a little sharper than when you came in. That is the spirit of this app. Napkin Dojo is for the ideas no one teaches you in school. The concepts that keep turning up in the best books and the most interesting conversations - the ones you half-know but can never quite pin down. The vocabulary of craft and cities and design. The words other languages have for feelings yours cannot name. The mental models of people building things at the edge of what is possible. The trade language you need to hold your own in rooms that matter. Each idea is a card: what it means, how it shows up in the real world, and a question that tests whether it actually landed. Rate yourself - Known, Heard of, or Don't know - and Dojo brings it back at the right moment, until the idea stops being something you recognise and becomes something you carry. Current decks: - Japan Mind: 113 Japanese concepts, from kaizen to yugen to ikigai - Lost in Translation: words other languages have for feelings English leaves unnamed - First Principles: how the teams building at the edge of what's possible actually think - City Makers: how great architects and urbanists think about the places we live - Design Eye: the vocabulary of how things are designed well - Cloth and Thread: the language of fine cotton and linen for the discerning buyer New decks added as the world gets more interesting. No account. No algorithm deciding what you should care about. No noise. Just the ideas you have decided are worth knowing, practiced until they are genuinely yours.
Screenshots
Verdict
The clearest difference is in-app purchases: Napkin Dōjō at none against Chart AI's 4. Napkin Dōjō also leads on update cadence (daily vs every 3 weeks) and iOS requirement (13.0 vs 18.0). On price, ads 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. Chart AI sells 4 in-app purchases, starting at $3.99 per 7 days. Napkin Dōjō asks for nothing beyond the download.
Chart AI ships an update every 3 weeks, Napkin Dōjō daily. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Chart AI | Napkin Dōjō |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (75 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 75 — better | — |
| Update frequency | Every 3 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | MATT LYNDON COSTELLO | Bharat Khandelwal |
Bugs and requests
Chart AI
Reported bugs
9 issues- Subscription not working
- App prompts to pay again
- Restore purchases button doesn't work
- Buggy app
- Cannot access app or saved data
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- App doesn't work
- Blank analysis
- No analysis created
- No response from support
Requested features
2 requests- Add features for day trading
- Option for different time frames
Napkin Dōjō
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Chart AI
- Unlimited Chart Scans3 Days trial$3.997 Days
- Weekly Subscription3 Days trial$5.997 Days
- Monthly Subscription$14.991 Month
Show 1 moreShow fewer
- Yearly Subscription3 Days trial$49.991 Year
Napkin Dōjō
No in-app purchases
Questions
Is Chart AI free?
Is Napkin Dōjō free?
Do Chart AI or Napkin Dōjō have ads?
Which is updated more often, Chart AI or Napkin Dōjō?
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