Comparison

ThetaForge vs Shihtzu Trading

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

Head to head
About

ThetaForge

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ThetaForge helps you model, visualize, and understand options strategies in a visual, educational environment. Build single-leg and multi-leg options structures, explore payoff behavior, adjust volatility assumptions, and test theoretical scenarios across price and time. Whether you are learning options mechanics or comparing complex strategy shapes, ThetaForge gives you a clear way to understand breakevens, defined risk, payoff behavior, and model-based outcomes. ThetaForge is designed as an educational strategy modeling tool — not a brokerage, signal service, or financial advisor. What you can do with ThetaForge Create and analyze options strategies including calls, puts, spreads, covered positions, and multi-leg structures. Visualize strategy payoff across a range of underlying prices. Explore breakevens, max profit, max loss, and risk-defined behavior. Adjust volatility assumptions to see how theoretical values may change. Model scenarios across price movement, time, and implied volatility. Compare strategy behavior before expiration and at expiration. Use strategy templates and guided explanations to better understand common options structures. Review neutral, risk-focused explanations that explain mechanics without telling you what to trade. Built for options learners and strategy builders ThetaForge is for people who want to understand how options strategies behave. It can help you explore questions like: How does this spread behave if the underlying moves up or down? Where are the breakeven points? How much risk is defined upfront? How does volatility affect the theoretical value of the position? What happens as time passes? How do multiple legs interact inside one strategy? Educational, visual, and privacy-conscious ThetaForge focuses on strategy modeling and theoretical analysis. It does not connect to brokerages, place trades, provide trade signals, or provide personalized investment recommendations. It is built to help you explore mechanics, structure, payoff, and risk in a clearer way. Important disclaimer ThetaForge is provided for educational and informational purposes only. It does not provide financial, investment, trading, tax, or legal advice. Options involve risk and are not suitable for all investors. Theoretical outputs, models, and scenarios are estimates only and may differ from real market prices, fills, liquidity, assignment behavior, taxes, fees, and other real-world outcomes. Always do your own research and consult a qualified financial professional before making financial decisions. License Agreement By downloading or using ThetaForge, you agree to Apple’s Standard End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Shihtzu Trading

This app translates complex institutional market data into easy-to-understand cards. It helps users identify big money movements and learn to interpret market signals for educational purposes.

Highlights
  • Categorized market data feed
  • Ticker symbol analysis
  • Options premium flow board
  • Plain-English glossary
  • Alert conviction meter
  • Clean dark interface
Features
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Shihtzu Trading puts institutional positioning on one dark screen you can read in seconds. CHART Any ticker. Candles with dealer levels drawn on them: the call wall, the put wall, the gamma flip, and the dark-pool prints that still matter. Pinch to zoom; expand to fill the screen. GAMMA The whole structure at once — every strike across every expiry, with the largest node found at a glance and this week's walls marked. SPX, SPY, QQQ and any name you search. FLOW Options prints as they land: side, size, premium, sweep or block. Filter by name, index or premium. Every session is kept, so what you missed is still there. DARK POOL Blocks and average-price programs as they print, and the price levels they leave behind. Levels in play sits inside the tab. ALERTS Dark pool, flow and gamma reads, each a card: what printed, where price sits, and how loud the read is. Tap a card to open the chart at that level. Pushes only for the categories you choose. BUILT FOR READING One dark interface, no walls of text. The same data as the web console at shihtzutrading.io; sign in with your email and both stay in step. EDUCATIONAL, NOT FINANCIAL ADVICE Shihtzu Trading is an educational tool. Nothing in the app is financial advice, a recommendation, or a promise of performance. Markets are risky; always do your own research. Questions? Visit shihtzutrading.io. Terms of Use (EULA): https://shihtzutrading.io/terms Privacy Policy: https://shihtzutrading.io/privacy

Screenshots

ThetaForge4 screens
Shihtzu Trading4 screens

Verdict

The call

The clearest difference is price: ThetaForge at Free against Shihtzu Trading's $14.99. ThetaForge also leads on iOS requirement (13.0 vs 15.1). On update cadence, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

ThetaForge is free to download; Shihtzu Trading costs $14.99 up front. ThetaForge sells 2 in-app purchases, starting at $14.99 per month and Shihtzu Trading sells 1 in-app purchase, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 12, 2026 and October 22, 2026 respectively.

Scorecard2 real differences · 8 level
ThetaForge versus Shihtzu Trading: the parameters behind the verdict, then further details
ParameterThetaForgeShihtzu Trading
PriceFree — better$14.99
Rating—5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesYes
Monetization—Subscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size70 MB37 MB
Age rating4+17+
DeveloperOne Nonstop Engineer LLCShihtzu Trading Co., LLC

In-app purchases

2 purchases

ThetaForge

Subscriptions2
  • ThetaForge Pro Monthly$14.991 Month
  • ThetaForge Pro Yearly$134.991 Year
1 purchases

Shihtzu Trading

Subscriptions1
  • Shih Tzu Membership3 Days trial$24.991 Month

Questions

Is ThetaForge free?
ThetaForge is free to download, with in-app purchases available.
Is Shihtzu Trading free?
Shihtzu Trading costs $14.99, and also offers in-app purchases.
Do ThetaForge or Shihtzu Trading have ads?
Neither ThetaForge nor Shihtzu Trading shows ads.
Which is updated more often, ThetaForge or Shihtzu Trading?
ThetaForge ships an update fortnightly, and Shihtzu Trading fortnightly. Most recently, ThetaForge was updated on October 12, 2026 and Shihtzu Trading on October 22, 2026.

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