Comparison

UnderstandStock vs Opti

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

Head to head
About

UnderstandStock

Explore stock market data with clarity and simplicity. Access 30 years of financial history and visualize trends with interactive charts. Gain insights to make informed investment decisions.

Highlights
  • Simple stock research
  • 30 years of financial data
  • Interactive charts
  • Clear data visualization
  • Informed investment decisions
Features
Read full description

Research stocks in a simple, clear way. Review financial data for the past 30 years. View charts of data.

About

Opti

Features
Read full description

OptiView is TradingView for options. An options analytics platform built for retail traders — scan the market, simulate strategies, and manage risk, all from your phone. OptiView addresses the common pain points retail options traders face, delivering a powerful, all-in-one solution with a clean, intuitive interface — available on mobile and desktop. Key features include: Strategy Assistant: build and visualize single- and multi-leg strategies to fit your market view OptiScan: scan and filter the entire universe of U.S. listed options Payoff simulation: visualize P&L outcomes through expiration Stress testing: see how a strategy holds up across volatility, dividend, and interest-rate scenarios Live or delayed data: free 15-minute delayed options data, or connect your brokerage for real-time data and order execution Broker integrations: Charles Schwab, E*TRADE, tastytrade, and Tradier Community-driven trade ideas and strategy insights Corporate earnings insights Portfolio tracking and overview …and more. Why choose OptiView? Free to use with quick onboarding, plus a Premium plan for advanced tools Built by a former hedge fund manager Designed specifically for retail traders Assists discovery of trade opportunities Greater clarity on your options risk-reward profile Intuitive, user-friendly interface For any feedback or concerns, please contact us at support@opti-view.com Risk Disclaimer: OptiView is an educational platform to explore how financial models work. Outputs are hypothetical and will almost certainly differ from actual market results. They are not predictions and should not guide investment decisions. Options and other financial products carry significant risk and may not be suitable for all investors. Past performance does not guarantee future results. Trading is conducted solely through your regulated brokerage. See www.opti-view.com for full risk disclaimer.

Screenshots

UnderstandStock4 screens
Opti4 screens

Verdict

The call

The clearest difference is in-app purchases: Opti at none against UnderstandStock's 1. Opti also leads on iOS requirement (15.1 vs 17.6). On price, rating, ratings volume and update cadence 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

Both are free to download. UnderstandStock sells 1 in-app purchase, starting at $19.99 per month. Opti asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for UnderstandStock against 5.0 for Opti. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 7 level
UnderstandStock versus Opti: the parameters behind the verdict, then further details
ParameterUnderstandStockOpti
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size36 MB49 MB
Age rating17+17+
DeveloperMelvin RamTORR.O

In-app purchases

1 purchases

UnderstandStock

Subscriptions1
  • UnderstandStock Pro$19.991 Month
None

Opti

No in-app purchases

Questions

Is UnderstandStock free?
UnderstandStock is free to download, with in-app purchases available.
Is Opti free?
Opti is free to download, with no in-app purchases.
Which has better reviews, UnderstandStock or Opti?
UnderstandStock and Opti are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do UnderstandStock or Opti have ads?
Neither UnderstandStock nor Opti shows ads.
Which is updated more often, UnderstandStock or Opti?
UnderstandStock ships an update weekly, and Opti weekly. Most recently, UnderstandStock was updated on October 10, 2026 and Opti on October 25, 2026.

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