Comparison

Tradyn vs OneArbitrage

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

Head to head
About

Tradyn

Features
Read full description

TRADYN is a professional multi-asset trading terminal designed for speed, precision, and modern market access. Monitor real-time prices, analyze advanced charts, place and manage trades, and track account activity — all from one powerful trading interface built for active traders. Trading Features • Real-time market watchlists • Multiple order types, including market and pending orders • Fast and intuitive trade execution panel • Price levels for open positions, Stop Loss, and Take Profit displayed on charts • Detailed trade history and account reports Advanced Platform Tools • Interactive charting with zoom and scroll • Customizable chart color themes • Technical indicators for market analysis • Drawing tools including trend lines and Fibonacci tools • Multi-language user interface • Push notifications for trade activity Market Access TRADYN connects to trading servers provided by your broker. Trade Forex, stocks, commodities, indices, and other instruments depending on your broker’s offering. Broker & Trading Notice To trade with real funds, you must open a trading account with a financial services provider (broker) connected to the TRADYN platform. TRADYN is a software provider and does not offer financial or brokerage services. Trading accounts, order execution, pricing, and account management are provided by your selected broker. TRADYN does not hold client funds and does not access broker servers or databases. Trading involves risk and may result in financial loss. Ensure you understand the risks before trading.

About

OneArbitrage

Manage your stock arbitrage account and track trading activity. Connect your brokerage, automate workflows, and view earnings. Offers a free trial for new members.

Highlights
  • Connect U.S. brokerage accounts
  • Track reverse stock split arbitrage (RSA)
  • View earnings and trading activity
  • Manage referrals and payouts
  • Automate RSA workflows
  • Manage account settings and billing
Read full description

OneArbitrage is the mobile companion for your OneArbitrage subscription. Connect your U.S. brokerage, track reverse stock split arbitrage (RSA) activity, and manage your account from your phone. WHAT YOU CAN DO • Sign in securely with your OneArbitrage account • View earnings and trading activity • Manage referrals and payout settings • Connect or refresh your Robinhood brokerage link • Update account settings and billing HOW IT WORKS OneArbitrage is subscription software (SaaS). Your assets stay at your broker; we do not hold your funds. After you link a supported brokerage and complete setup, our system helps automate the RSA workflow you configure. SUBSCRIPTION New members start free until their first winning trade. On iPhone, paid membership is an auto-renewable In-App Purchase (OneArbitrage Monthly). On U.S. App Store storefronts, Stripe checkout is also available. Pricing and renewal details appear below, in the app, and on this product page. SUPPORT Questions? Visit our website or email support@onearbitrage.com. OneArbitrage is not a broker-dealer and does not provide personalized investment advice. Subscriptions OneArbitrage Monthly is an auto-renewable subscription. Length: 1 month. Price: the price shown on this product page and in the app at purchase (varies by country or region). Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless you turn off auto-renew at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends. You can manage the subscription and turn off auto-renew in your Apple ID account settings after purchase. Any unused portion of a free trial, if offered, is forfeited when you purchase a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.onearbitrage.com/privacy Terms of Service: https://www.onearbitrage.com/terms

Screenshots

Tradyn4 screens
OneArbitrage4 screens

Verdict

The call

The clearest difference is in-app purchases: Tradyn at none against OneArbitrage's 1. Tradyn also leads on device support (3 vs 1). OneArbitrage's advantage is update cadence (every 2 days vs every 2 months). On price, ads and iOS requirement 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. OneArbitrage sells 1 in-app purchase, starting at $24.99 per month. Tradyn asks for nothing beyond the download.

UpkeepUpdate frequency

Tradyn ships an update every 2 months, OneArbitrage every 2 days. Both last shipped on October 31, 2026.

Scorecard3 real differences · 6 level
Tradyn versus OneArbitrage: the parameters behind the verdict, then further details
ParameterTradynOneArbitrage
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Subscription
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better16.4
Further details — not scored
Size40 MB63 MB
Age rating4+4+
DeveloperEQUIDITY TECHNOLOGIES L.L.COneArbitrage, LLC

In-app purchases

None

Tradyn

No in-app purchases

1 purchases

OneArbitrage

Subscriptions1
  • OneArbitrage Monthly$24.991 Month

Questions

Is Tradyn free?
Tradyn is free to download, with no in-app purchases.
Is OneArbitrage free?
OneArbitrage is free to download, with in-app purchases available.
Do Tradyn or OneArbitrage have ads?
Neither Tradyn nor OneArbitrage shows ads.
Which is updated more often, Tradyn or OneArbitrage?
Tradyn ships an update every 2 months, and OneArbitrage every 2 days. Most recently, Tradyn was updated on October 31, 2026 and OneArbitrage on October 31, 2026.

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