Tradyn vs OneArbitrage
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tradyn
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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.
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.
- 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
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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
Verdict
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
Both are free to download. OneArbitrage sells 1 in-app purchase, starting at $24.99 per month. Tradyn asks for nothing beyond the download.
Tradyn ships an update every 2 months, OneArbitrage every 2 days. Both last shipped on October 31, 2026.
| Parameter | Tradyn | OneArbitrage |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 40 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | EQUIDITY TECHNOLOGIES L.L.C | OneArbitrage, LLC |
In-app purchases
Tradyn
No in-app purchases
OneArbitrage
- OneArbitrage Monthly$24.991 Month









