RocketDip vs Principle
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
RocketDip
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Should you buy Bitcoin today? RocketDip answers that question with a real-time composite buy signal score from 0-10, combining four proven technical indicators into one easy-to-read number. HOW IT WORKS RocketDip analyzes four key Bitcoin indicators and combines them into a single score: - RSI β momentum and oversold detection - Fear & Greed Index β market sentiment analysis - Moving Average Cross β trend direction (50/200 MA) - 24H Price Change β short-term momentum FEATURES - Live buy signal score updated every 5 minutes - Real-time price, market cap, and volume data - Interactive price chart with signal history - Smart alerts for dips, surges, and FOMO warnings - Deep-dive explanations for every indicator - Home screen widget RocketDip is for educational and informational purposes only. Not financial advice.
Principle
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How long will you keep investing on gut feeling? Build your trading rules without code. Test them on US and Korean stocks. Combine moving averages, stop-loss, and partial take-profit to backtest your strategy. For education and entertainment only. Past simulation does not predict future results. Build rules. Let the data answer. -- Rule Builder - Set moving average periods, stop-loss, and take-profit with a few taps - No coding required, ready in 1 minute - Combine partial buy/sell, multi-stage take-profit, and more -- Historical Backtest - US and Korean daily stock data - 1 token per stock - Cached results reuse on identical conditions (no extra token) -- Result Analysis - Cumulative return chart - Buy/sell signal markers on the price chart - Maximum drawdown, win rate, average holding period and more -- Share Your Rules - Share your rules with friends - Import rules from others and backtest them yourself -- Invite Friends - Verify more, together - Share your invite code; when a friend signs up and enters it, - you and your friend each get 15 tokens (up to 10 invites per month) -- Token Packs - 4 token packs: 10 / 33 / 115 / 600 tokens - Larger packs include more bonus tokens -- Disclaimer - This app is an education and entertainment simulation tool. - This app does NOT provide investment advice, stock picks, or trading signals. - Backtest results are simulations based on past data and do not guarantee future returns. - This app is NOT connected to live trading. - The company assumes no responsibility for any losses in actual trading.
Screenshots
Verdict
The clearest difference is update cadence: Principle at every 10 days against RocketDip's every 4 weeks. Principle also leads on iOS requirement (13.0 vs 26.2). On price, ads, in-app purchases and device support 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
Both are free to download. RocketDip sells 1 one-off in-app purchase and Principle sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
RocketDip ships an update every 4 weeks, Principle every 10 days. Both last shipped on September 10, 2026.
| Parameter | RocketDip | Principle |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks | Every 10 days β better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.2 | 13.0 β better |
| Further details β not scored | ||
| Size | 6 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Alan Haley | μ£Όμνμ¬ μ μ |
In-app purchases
RocketDip
- Remove Ads$1.99
Principle
- 10 Tokens$1.99
- 33 Tokens$4.99
- 115 Tokens$14.99
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- 600 Tokens$59.99
