Comparison

Deja vs CFD Signal

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

Head to head
About

Deja

Features
Read full description

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

CFD Signal

Features
Read full description

CFD Signal notifies you of technical-indicator events on CFD instruments β€” precious metals, energy, and stock indices. Stay on top of key market moments without watching charts all day. Key features: - Alerts for technical signals: moving-average crossovers, RSI, price breakouts, and more - Monitors multiple timeframes at once (5-minute to weekly) - Fine-grained notification settings β€” filter by instrument, timeframe, and signal type - "Quiet hours" setting to suppress notifications at night - Quick access to the chart when a signal fires Instruments covered: Precious metals (gold, silver, platinum), energy (crude oil, natural gas), and major stock indices. Plans: - Free: 1 instrument x 1 timeframe x all signal types - Basic (Β₯700/month): 15 instruments x 4 timeframes (M5/M10/M30/H1/H4) x 40 signal types - Premium (Β₯1,500/month): 37 instruments x 8 timeframes (M5 through Weekly) x all signal types A one-month free trial is available for each paid plan. Auto-renewing monthly subscription, cancel anytime. Subscription details: - Auto-renewing monthly subscription. Renews automatically unless canceled at least 24 hours before the end of the current period. - Manage or cancel anytime in Settings > Apple ID > Subscriptions on your iPhone. - Payment is charged to your Apple ID account upon purchase confirmation. Important: This app provides objective, technical-indicator-based information. It is not investment advice or solicitation. It does not recommend any specific instrument or transaction; all investment decisions are your own responsibility. CFD trading involves risk. Terms of Use: https://yaneyuka.com/cfd-signal-terms/ Privacy Policy: https://yaneyuka.com/cfd-signal-privacy-policy/ Contact: info@yaneyuka.com Operator: Goudoukaisya slime (合同会瀾slime)

Screenshots

Deja3 screens
CFD Signal4 screens

Verdict

The call

The clearest difference is in-app purchases: Deja at none against CFD Signal's 2. Deja also leads on update cadence (every 4 days vs every 4 months). 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. CFD Signal sells 2 in-app purchases, starting at $3.99 per month. Deja asks for nothing beyond the download.

UpkeepUpdate frequency

Deja ships an update every 4 days, CFD Signal every 4 months. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

Scorecard2 real differences Β· 4 level
Deja versus CFD Signal: the parameters behind the verdict, then further details
ParameterDejaCFD Signal
PriceFreeFree
Update frequencyEvery 4 days β€” betterEvery 4 months
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPod
Requires iOS15.015.0
Further details β€” not scored
Size73 MB16 MB
Age rating4+4+
DeveloperJUHWAN LEEmasafumi matsumoto

In-app purchases

None

Deja

No in-app purchases

2 purchases

CFD Signal

Subscriptions2
  • Basic$3.991 Month
  • Premium$9.991 Month

Questions

Is Deja free?
Deja is free to download, with no in-app purchases.
Is CFD Signal free?
CFD Signal is free to download, with in-app purchases available.
Do Deja or CFD Signal have ads?
Neither Deja nor CFD Signal shows ads.
Which is updated more often, Deja or CFD Signal?
Deja ships an update every 4 days, and CFD Signal every 4 months. Most recently, Deja was updated on October 2, 2026 and CFD Signal on October 1, 2026.

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