LineStar DFS & Props Optimizer

Review by eFreeware

The most distinctive thing about LineStar DFS & Props Optimizer is that it does not just offer research; it builds the lineups. The app is a companion for Daily Fantasy Sports contests on DraftKings, FanDuel and Yahoo, and its centerpiece is a lineup optimizer that the developer says can churn out more than 150 lineups in short order. That combination of research and automated construction is what separates it from a plain stats app.

It is aimed at DFS players who already enter contests on those platforms and want an edge in lineup construction. The developer pitches it as useful whether or not you consider yourself a sports expert, because the optimizer weighs a long list of factors for each athlete. I read that as a tool for people who take DFS seriously enough to pay for projections and alerts, rather than a casual scores app.

The app is free to download, carries ads and offers in-app purchases, with a Premium subscription available. It has been on Google Play since August 2015 and currently sits at a 4.6 average from 1,167 ratings, with more than 10,000 installs. Those numbers describe a niche audience, which fits a product built around a specific paid hobby.

The optimizer is the headline act

LineStar's main selling point is its lineup optimizer, which the developer describes as patented and now in its fourth generation. You tell it which sport and slate you are playing, and it generates lineups in volume, which is useful for anyone entering multiple contests or running a stack-heavy strategy. The app weighs more than a hundred distinct factors per player, which is why the tool sits at the center of the app rather than on the side.

The practical detail I like is import and export. Lineups built in LineStar can be sent straight to DraftKings, FanDuel or Yahoo, so you are not retyping a roster into another app. There is also a late swap function for players who are scratched or ruled out, which addresses one of the more tedious parts of managing several entries close to lock.

The app also tracks a Perfect Lineup in real time for each sport, showing how the optimal roster is performing as games unfold. For someone running a dozen entries, that is a useful benchmark for judging how far off the pace a given build is. Whether the optimizer's output actually beats your own instincts is something only your results can answer.

Projections, props and the research layer

Around the optimizer sits a set of research tools. The app provides projected ownership percentages, which matter if you are trying to differentiate a tournament entry, and a stack finder for pairing players from the same team. There are daily matchup alerts, Vegas odds, weather alerts and confirmed starting lineups, all of which feed into lineup decisions on the major platforms.

Player props get their own treatment. Props AI is included with LineStar Premium and is billed as offering precise prop predictions, alongside EV+ props and outlier predictions. If you bet props as well as build DFS lineups, that is the part of the app most likely to justify the subscription; if you only play classic contests, it is extra weight you may not use.

There is a social dimension too. A live community chat lets users swap strategies, and community likes surface what other players are favoring. Push notifications flag game and player information as it changes, and games, stats, news and players are updated frequently through the day. Advanced sorting and filtering help you narrow a player pool without scrolling through everything.

What it asks of you: platforms, Premium and ads

Daily fantasy on DraftKings, FanDuel and Yahoo is what LineStar is built for. The optimizer, import and export, and the research tools are all oriented around those contests.

The app itself is free, but it contains ads and offers in-app purchases. LineStar Premium is priced at $39.99 per month or $239.99 per year, and Props AI is included with Premium. The subscription renews automatically through your Google Play account, with renewal charged within 24 hours before the end of the current period. Cancellation is handled through the app's settings page or Google Play, and no cancellation of the current subscription is allowed while it is active.

The app is intended for adults and is described as being for entertainment purposes only, with no real money betting involved. That framing matters: LineStar is a research and lineup tool, not a place to place wagers.

How I would approach it

The sensible way in is to start with the free app and use the optimizer on a sport you know well, then compare its output against the lineups you would have built yourself. That tells you quickly whether the projections and ownership estimates are adding anything to your process. The import and export path to DraftKings, FanDuel or Yahoo is worth setting up early, since it removes the most repetitive part of entering multiple lineups.

If you play props, the Premium tier is where Props AI, EV+ props and outlier predictions live, so that is the feature set to weigh against the monthly or annual price. The annual plan works out cheaper per month, but it is a real commitment for a hobby with a volatile return. I would treat the subscription as a cost of doing business only if you are entering enough contests for the research to matter.

The alerts are the feature I would lean on most during a slate. Matchup, weather and starting lineup notifications, plus late swap, address the things that go wrong in the final hour before lock. Sorting and filtering, combined with projected ownership, make it easier to find lower-rostered players without guesswork. The community chat is there if you want a second opinion, though its value depends on the crowd in it on a given day.

Narrow, priced for regulars

LineStar is a focused product, and that focus is both its strength and its limit. Everything in it serves DFS lineup construction and props research on three specific platforms. The value of the optimizer depends on you playing the contests it supports. The ads and the subscription sit on top of that core, so the real cost of using it seriously is the Premium price.

For a regular DFS player, the combination of automated lineup building, direct import to the operators, live ownership projections and late swap is a coherent toolkit. For someone who enters a single casual lineup on a Sunday, the Premium props tools would be hard to justify. The 4.6 rating from a modest install base suggests the people who do use it tend to stick with it.

A tool for committed DFS players

I would recommend LineStar to DFS players who enter multiple lineups on DraftKings, FanDuel or Yahoo and want the building and research in one place. The patented optimizer, operator import and export, late swap and live ownership projections are the reasons to install it, and the props features give Premium subscribers a second use case. The free download makes it easy to try the app before committing to a subscription.

The trade-offs are clear enough. It is built around three platforms, it carries ads, and the Premium tier costs $39.99 a month or $239.99 a year if you want the props side. If you play DFS seriously enough that research and lineup volume affect your results, the toolset is well matched to that habit. If you dabble occasionally, the free app is where I would start.

What's new in version 3.7.8

* Optimizer updates for NHL line stacking. * Stack Finder fixes * Save hand-built lineups in V4. * Big plays are back in chat (they were filtered by slate) * Sort options added in the lineup player picker * Team DEF: chart UI fixes when lines wouldn't draw * Have feedback? Email us! #1 in Mobile DFS & Props | 7-Day Free Trial Available E-mail: [email protected] with any questions or ideas!