Comparison

Deja vs FundSmart by Fun Digital Data

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

Head to head
About

Deja

Features
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Have you ever looked at a stock chart and thought, "I have seen this pattern before"? Deja finds historical charts that match your current pattern and shows you what happened next. Deja scans thousands of historical price patterns across stocks and crypto to find the ones most similar to the chart you are looking at right now. Then it tells you, with real statistics, how those similar patterns played out -- whether prices went up or down, and by how much. CORE FEATURES -- Pattern Matching Engine Deja identifies similar historical chart patterns across NASDAQ, NYSE, and crypto markets. Each match includes a similarity score so you know how closely it resembles the current chart. -- Statistical Predictions For each set of matched patterns, Deja calculates 1-day and 5-day predictions including win rate, maximum gain, maximum loss, IQR range, and median outcomes. No guesswork -- just data. -- Interactive Comparison Charts Overlay the current chart with any historical match to visually compare how patterns align. Switch between line and OHLC views. See exactly where the "similar part" is and what happened after. -- Customizable TP/SL Levels Set your Take Profit and Stop Loss using the metric that fits your trading style -- Max, Min, IQR bounds, or Median values. The chart updates in real time to show your selected levels. -- Live Price Data Real-time price updates via WebSocket with historical data merged seamlessly. Watch the current pattern develop as it happens. -- Multi-Market Coverage Browse and analyze charts from NASDAQ, NYSE, NYSE-ARCA, and major cryptocurrency pairs. HOW TO USE 1. Select a market category and symbol 2. View the live candlestick chart with prediction overlays 3. Scroll down to see the full statistical analysis 4. Explore individual similar chart matches 5. Use the data to inform your trading decisions Deja does not predict the future. It shows you what historically happened when similar patterns appeared. Use this information as one input in your trading analysis. Download Deja and start making data-driven trading decisions.

About

FundSmart by Fun Digital Data

Features
Read full description

FundSmart – Smart Copy Trading & Investment Insights FundSmart is a professional trading and investment platform designed for traders and investors seeking smarter market decisions. Whether you are exploring quantitative strategies, following experienced traders, or monitoring market opportunities, FundSmart provides powerful tools to support your investment journey. Key Features • Copy Trading Follow experienced traders and manage your investment portfolio more efficiently. • Quantitative Strategies Discover and evaluate trading strategies based on data-driven analysis. • Market Insights Access real-time market information, technical analysis, and trading signals. • Trading Community Connect with traders, share ideas, discuss strategies, and learn from market participants worldwide. • Portfolio Management Track account performance, positions, and investment statistics in one place. • Risk Management Tools Monitor exposure and make informed trading decisions with built-in risk controls. Suitable For Forex Traders Gold Traders Commodity Traders Quantitative Investors Copy Trading Users Market Analysts FundSmart helps you trade smarter through data, insights, and community collaboration.

Screenshots

Deja3 screens
FundSmart by Fun Digital Data4 screens

Verdict

The call

The clearest difference is in-app purchases: Deja at none against FundSmart by Fun Digital Data's 6. Deja also leads on update cadence (every 4 days vs every 3 weeks). FundSmart by Fun Digital Data's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

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

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

Both are free to download. FundSmart by Fun Digital Data sells 6 one-off in-app purchases. Deja asks for nothing beyond the download.

UpkeepUpdate frequency

Deja ships an update every 4 days, FundSmart by Fun Digital Data every 3 weeks. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

Scorecard3 real differences Ā· 3 level
Deja versus FundSmart by Fun Digital Data: the parameters behind the verdict, then further details
ParameterDejaFundSmart by Fun Digital Data
PriceFreeFree
Update frequencyEvery 4 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size73 MB69 MB
Age rating4+17+
DeveloperJUHWAN LEEFUN DIGITAL DATA CO., LIMITED

In-app purchases

None

Deja

No in-app purchases

6 purchases

FundSmart by Fun Digital Data

One-time6
  • 12 points$16.99
  • 35 points$49.99
  • 70 points$99.99
Show 3 more
  • 140 points$199.99
  • 175 points$249.99
  • 210 points$299.99

Questions

Is Deja free?
Deja is free to download, with no in-app purchases.
Is FundSmart by Fun Digital Data free?
FundSmart by Fun Digital Data is free to download, with in-app purchases available.
Do Deja or FundSmart by Fun Digital Data have ads?
Neither Deja nor FundSmart by Fun Digital Data shows ads.
Which is updated more often, Deja or FundSmart by Fun Digital Data?
Deja ships an update every 4 days, and FundSmart by Fun Digital Data every 3 weeks. Most recently, Deja was updated on October 2, 2026 and FundSmart by Fun Digital Data on October 9, 2026.

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