United Traders vs STDI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
United Traders
Invest in a variety of U.S. market instruments, including IPOs, pre-IPO, OTC stocks, SPACs, and ETFs. Build a diversified portfolio with fractional shares and access detailed risk and return analysis for each investment.
- Invest in IPOs, Pre-IPO, and OTC stocks
- Fractional share investing
- Portfolio building tools
- Risk and return analysis
- Buy and sell orders
- Early and partial exit options
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We select the best stocks Invest in the most promising instruments the U.S. market has to offer: IPO — private stocks prior to a company's listing Pre-IPO and ОТС — investments in the over-the-counter market. A unique offering from United Traders: invest in private Silicon Valley companies a year or a few years prior to IPO. SPAC — invest in funds that make money on pre-IPO investments Stocks and ETFs — hundreds of the world's best companies and exchange-traded funds. Start with one share You can join the majority of investments buying just one share. Your orders for pre-IPO and OTC investments are executed with up to fractions — add 1.5 Udemy or 0.3 SpaceX shares! Build your own portfolio Our analysts indicate the risk level and potential return for every investment idea. Our platform supports buy and sell orders. You can also cancel orders. Options for early and partial exit from investments — for better portfolio rebalancing. Commissions are indicated for every investment. Stock price dynamics and investment history are shown in your account. Start investing with United Traders! Go to the section "How it works" to learn more about investments Contact us through the website chat
STDI
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STDI-проводник в мир инвестиций по всему миру! В приложении вы сможете: • Пройти регистрацию и открыть счет; • Осуществить пополнение счета и перевод денег онлайн; • Конвертация денег в любой валюте по биржевому курсу; • Покупка и продажа любых финансовых инструментов: акции, облигации, фонды; • Операции привлечения и размещения денежных средств и ценных бумаг; • Контролируйте все свои заявки и инвестиционный портфель; • Аналитика и инвестиционные идеи; • Прогнозы аналитиков, технические индикаторы, графики и фундаментальные показатели по компании и многое другое
Screenshots
Verdict
The clearest difference is iOS requirement: United Traders at 12.0 against STDI's 15.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
United Traders ships an update fortnightly, STDI monthly. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.
| Parameter | United Traders | STDI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (6 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Fortnightly — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 79 MB | 42 MB |
| Age rating | 4+ | 17+ |
| Developer | UT Exchange OU | АО «ИК Standard» |
In-app purchases
United Traders
No in-app purchases
STDI
No in-app purchases









