All software in the index, 5261 listings

SpiceDB is an open source permissions database from AuthZed, built on the model Google described in its Zanzibar paper. It stores relationships between subjects and resources and answers permission questions against them, rather than evaluating rules written per application.

The relationship based model is what distinguishes it from role based systems and it handles a problem those systems handle badly. Real permissions are frequently relational: a user may edit a document because they belong to a team that owns a folder containing it. Expressing that as roles means enumerating combinations that multiply as the hierarchy grows, whereas storing relationships and traversing them answers the question directly however deep the nesting goes.

Consistency matters more here than the model suggests, and it is why Zanzibar was a notable paper rather than an obvious design. A permissions system that returns stale answers will allow access that was just revoked, so the guarantees offered around freshness are a substantive part of what the database provides.

AuthZed offers SpiceDB as open source alongside managed cloud hosting, with a self service tier priced by the hour and dedicated and enterprise options above it. That combination lets a team adopt the open source engine and move to managed hosting without changing the model.

TextUs is a business texting platform built around conversational messaging rather than one way broadcast, combining campaigns, a shared inbox, automation, keywords, analytics and WhatsApp messaging. Its pricing is published as a platform fee plus a per message rate, which the vendor presents deliberately as showing real costs upfront.

Separating the platform fee from the message rate is the honest way to price this category and it is worth understanding why. Messaging costs scale with volume while the software does not, so a single blended monthly figure either overcharges a light sender or collapses when a heavy one arrives. Quoting both parts lets a buyer calculate their own cost from their own volume rather than discovering it on the first invoice.

The conversational emphasis shapes the product. A shared inbox means an inbound reply reaches a team rather than disappearing, which is the difference between texting as a broadcast channel and texting as a two way conversation. For recruiting and sales teams, where response rates are the point, that distinction is the reason to buy.

Around the inbox the platform offers campaigns for outbound sending, automation and AI features, keyword handling for inbound opt ins, analytics and developer tools. WhatsApp messaging extends the same conversational model onto a channel with wider international reach.

Textmagic is a business messaging platform covering SMS alerts, reminders, notifications and marketing campaigns, extended with automation flows, a shared inbox and email campaigns. It brings SMS, live chat and social channels into one inbox so a team handles every inbound conversation from a single place.

Consolidating channels into one inbox is the design decision that matters most in daily use. A customer who texts today and uses live chat tomorrow is one person, and when those conversations sit in different tools the team answers as if they were strangers. One inbox preserves the thread, which is what makes the interaction feel continuous to the customer.

Automation flows add drip campaigns and message sequences through a flow builder, so a follow up sequence can be defined once rather than sent manually. That is where recurring value accumulates, because the sequences keep running without staff attention.

Practical telephony details are handled directly, including toll free numbers, 10DLC registration for United States business messaging, and bringing an existing number. Those are the requirements that block a business from sending compliantly in the United States, so having them handled in the product removes real setup friction. A light CRM with tasks and deals sits alongside the messaging.

tastytrade is an online brokerage built around options trading, offering stocks, exchange traded funds, options, futures, futures options, forex, crypto and prediction markets through desktop, web, mobile and API platforms. Its commission schedule is published in full rather than summarised, which is unusual in a category where the real cost of trading is often difficult to establish before opening an account.

Charging to open a position but not to close it is the pricing decision that defines the product for its intended user. An options trader manages positions actively, rolling and closing far more often than a buy and hold investor, so a schedule that charges on both sides doubles the cost of exactly the behaviour this platform is designed around. Capping the opening commission per leg limits the cost of multi leg strategies, which are the strategies options traders actually place.

The platform is built for that same audience, with tooling oriented toward positions and probabilities rather than around research reports and long term allocation. An API is offered alongside the desktop, web and mobile clients for traders who want to automate.

Education is a substantial part of the offering, with courses, webinars and market content produced continuously. That reflects the reality that options carry risks a new trader may not have priced, and that a brokerage whose revenue depends on informed activity has reason to invest in explaining them.

Enterprise Architect from Sparx Systems is a modelling and design platform used for systems engineering, software architecture, business process modelling and enterprise architecture. It is sold in tiered editions, Professional, Corporate, Unified and Ultimate, with a software as a service option, floating licences and academic pricing alongside the perpetual desktop product.

Breadth of notation is what has kept it in use for so long. The same installation covers UML, SysML, BPMN and enterprise architecture frameworks, so an organisation modelling software, systems and business process does not need a separate tool and a separate licence pool for each discipline. That consolidation is the main commercial argument.

Licensing flexibility matters more in this category than buyers expect. Modelling tools are used intensively by a few people and occasionally by many, so floating licences shared across a team fit actual usage far better than per seat purchases, and academic pricing supports the universities where engineers first learn the notation.

Pro Cloud Server extends the desktop product to shared repositories, browser access through WebEA and stakeholder collaboration through Prolaborate, which addresses the recurring problem that models are built by specialists but need to be read by people who will never install the tool.

Robinhood is an investing application offering stocks, exchange traded funds, options, crypto, futures and prediction markets from one account, with a stated minimum of one dollar to begin. It is the platform most associated with the shift to commission free retail trading, and its design has always prioritised removing the friction between a person and a first trade.

The low entry point is the product decision that defines it. Being able to start with a single dollar, including through fractional shares, removes the capital barrier that historically kept younger and lower income investors out of markets entirely. That accessibility is also the source of the criticism the platform attracts, since the same frictionlessness applies to instruments such as options and futures that carry considerably more risk than buying a share.

Robinhood Legend is the more advanced interface offered alongside the standard application, aimed at users who have outgrown the simplified view and want charting and order tooling closer to a conventional trading platform.

The firm has recently moved into agentic trading, offering a dedicated account an AI agent can trade in with activity and performance monitored in the app, plus a virtual credit card built for agent use. Products are provided through separate regulated entities, with stocks and funds through Robinhood Financial and crypto through a separate arm.

OpenGov provides a software platform built specifically for local and state government, covering enterprise resource planning, budgeting, grants management, enterprise asset management, permitting and licensing, procurement, tax and revenue, constituent relationship management and 311 request handling. It is sold as one platform connecting departments rather than as separate systems bought individually.

Unifying government departments is a harder problem than the equivalent in business, and that is precisely why it is valuable. A city's permitting office, finance team, public works department and call centre have historically bought their own systems on their own timelines, leaving a resident who reports a pothole, applies for a permit and pays a bill interacting with three unconnected systems that do not know they are the same person. One platform makes the resident, rather than the department, the organising unit.

Budgeting is where OpenGov started and remains central, because public budgeting is a distinct discipline. It is a public, participatory process with statutory deadlines and published documents, not an internal planning exercise.

Procurement matters for the same reason, since public purchasing follows prescribed competitive processes designed for accountability rather than for speed. AI features have been added across the products, including a scope builder for procurement and assistance in tax and revenue work.

NinjaTrader is a futures trading platform and brokerage, covering futures, futures options and single stock futures with desktop, web and mobile clients. It is aimed at active futures traders rather than at long term investors, and the product is organised around charting, order execution and strategy development.

Day trading margin is the number that determines who this platform suits. Intraday margin requirements set how much capital must be held to carry a position during the session, and a low requirement lets a trader hold a position on a small account. That is what makes futures accessible to individual traders, and it is equally the reason the risk is significant, since the same leverage magnifies losses.

Commission on a per micro contract basis matters because micro contracts are how most individual traders now access futures markets. A rate quoted per micro contract rather than per standard contract is priced for the size these traders actually trade rather than for institutional volume.

Around the brokerage the platform provides free charting, a trading simulator for practising without capital at risk, extensive customisation and strategy development tooling. The vendor also publishes a large body of educational material on futures basics, trading plans and risk management, which is appropriate for an instrument where leverage is the main hazard.

moomoo is an investing platform offering equities across United States, Singapore, Japanese, Hong Kong and Korean markets, alongside exchange traded funds, real estate investment trusts, treasuries, options, crypto and wealth management products. The breadth of Asian market access is what distinguishes it from platforms oriented mainly around United States listings.

Multi market coverage in one account is the practical draw for investors in the Asia Pacific region. Holding Singapore, Hong Kong, Japanese and United States positions usually means either several brokerage relationships or accepting depositary receipts as a proxy, and consolidating them removes both the administrative overhead and the currency handling that comes with it.

The analysis tooling is more substantial than the app format suggests, with an earnings calendar, heat maps, fundamental and technical screens, investment themes, an economic calendar and institutional tracking. Paper trading and a desktop client sit alongside the mobile application for users who want to work on a larger screen.

A regular savings plan supports scheduled recurring investment on a daily, weekly, fortnightly or monthly basis, with automated bank transfers and currency exchange handled by the platform. Wealth management products including cash and income funds are offered alongside the brokerage account.

MetaTrader is a trading platform for forex and stock markets, distributed through brokers rather than sold directly to traders. MetaTrader 5 is the current version, offering desktop, web and mobile clients with charting, technical analysis, fundamental analysis and alerting.

The distribution model is the first thing to understand about it. A trader does not buy MetaTrader, they open an account with a broker who offers it, which is why no price is published on the platform's own site. That model is also why the platform is so widely encountered, since a single familiar interface spans a large number of competing brokers and a trader changing broker need not learn new software.

The MQL5 ecosystem is what has kept it entrenched. Traders can buy or sell automated trading robots and custom indicators through a marketplace, subscribe to trading signals from other traders, or publish their own. That turns the platform into a marketplace for strategies as much as a place to execute them.

Virtual hosting is offered so automated strategies can run continuously without the trader's own machine staying on, which matters for any robot expected to react to markets around the clock. The web terminal allows trading from a browser without installing anything.