Prop Professor vs OddsShopper: Is Custom EV Worth More Than Convenience?

The Bottom Line

Prop Professor and OddsShopper Portfolio EV both find bets where the math beats the sportsbook, but they disagree on who should run it. Prop Professor hands you the controls: you pick the devigging method, weight sportsbooks per market, and decide which books count as sharp in each sport. OddsShopper Core includes custom devigging too, but the product is built to hand you a ranked list and track what you do with it. After running both side by side across a stretch of MLB slates, I found Prop Professor was the one built for tuning market by market, and its $49 Sportsbook plan costs half of OddsShopper Core's $99.95. For bettors who already understand expected value, that makes it the better +EV tool. BetSmart earns a commission if you sign up through links on this page, but our rankings come from hands-on testing and are not swayed by commission rates.

Prop Professor scored 4.5 overall, with a 4.8 for ROI potential and a 4.7 for features. Its fall price change split the product into three plans. Sportsbook ($49 a month) covers customizable +EV and arbitrage, real-time odds across 30+ sportsbooks, and a Smart Money screen that tracks exchange and Pinnacle prices against the square books. Fantasy ($49) carries the DFS alt-line optimizers for PrizePicks, Underdog, Sleeper, and seven other apps. All Access ($69) bundles both. Every plan now includes full iOS and Android apps, which closes what used to be its biggest gap. The limits now are onboarding and polish: the custom weights take setup, and there is no free trial, only a free preview of the optimizer pages once you log in. Our full Prop Professor review has the complete breakdown.

OddsShopper Portfolio EV scored 4.4 overall, with a 4.6 for ease of use and a 4.5 for features. Core costs $99.95 per month and scans 110+ sportsbooks across 40+ leagues for +EV and arbitrage, with custom devigging and a Liquidity Tool that reads Kalshi and Polymarket orders. It tracks your profit, closing line value, and expected value as one portfolio. Native iOS and Android apps, entry builders for Underdog, PrizePicks, and Sleeper, and a 7-day free trial round it out. Pro at $149.95 is the live-betting tier, adding in-game EV, in-game arbitrage, and in-game liquidity signals. See our breakdown of OddsShopper for the full assessment.

Quick Comparison

Features: Both run +EV detection, arbitrage scanning, real-time odds, custom devigging, and one-click bet slips. The split is depth versus breadth. Prop Professor goes deeper on the math, with per-market sportsbook weights and alt-line optimizers across 10 DFS apps. OddsShopper goes wider, with 110+ sportsbooks, portfolio tracking by risk level, a parlay builder, the Liquidity Tool on Core, and in-game tools on Pro.

Usability: OddsShopper scored 4.0 for UI and 4.6 for ease of use. Prop Professor scored 4.2 for both. Both now run on iOS, Android, and web. OddsShopper's rebuilt Portfolio Lab cleaned up the research view and is quicker to learn, though parts of the interface still feel clunky. Prop Professor's odds screen could use UX polish, but the core tools are powerful once the layout clicks.

Value: Prop Professor charges $49 a month for Sportsbook or Fantasy and $69 for All Access, against $99.95 for OddsShopper Core and $149.95 for Pro. Even Core on annual billing works out to about $83 a month. OddsShopper counters with a 7-day free trial, 50% off the first month through our link, and a 300-bet profit guarantee. Prop Professor has no trial, but code BETSMART takes 25% off your first month, and a $20 weekly plan lets you test it over one football weekend.

What Makes Prop Professor the Better Custom EV Tool

1. Customizable EV Calculations Few Tools Offer at This Price

Custom devigging is where Prop Professor pulls ahead. You set sportsbook weights per market, choose your devigging method, and pick which books to trust as sharp by sport. If you think Pinnacle sets the sharpest NFL sides but Circa is better for NBA totals, you build that into the math. OddsShopper Core lets you choose which books define its fair price, but the product still centers on its own ratings and a portfolio view. For bettors who want to control the math behind their +EV bets, Prop Professor delivers that depth for $49.

2. Real-Time Odds That Refresh Every Two Seconds

Prop Professor's real time odds comparison screen updates every two seconds across 30+ sportsbooks, plus prediction markets including Novig, ProphetX, and Polymarket US. Speed matters in +EV betting, because a line showing 3% expected value can disappear inside a minute once the market catches up. On an August MLB slate, a strikeout prop flagged at a soft number moved to the consensus price before the next half inning. The Smart Money view adds order-book depth from exchanges and Pinnacle, so you can see the size behind a sharp price before you chase it. When you are racing the market to a number on an NFL Sunday or a full NBA slate, the refresh rate is what you are paying for.

3. A DFS Alt-Line Optimizer OddsShopper Cannot Match

Prop Professor's DFS optimizers calculate expected value for alternative lines on PrizePicks, Underdog, Betr, Dabble, DraftKings Pick6, Sleeper, ParlayPlay, HotStreak, Boom Fantasy, and Chalkboard, using each site's multipliers. Slip Gen builds on that by creating and validating +EV fantasy slips you can enter in one click. That pays off most in the early weeks of the NBA season, when rotations are still settling and a points or rebounds line can sit a full number apart from one pick'em app to the next. You see which alt lines clear the payout math before you build the entry. The optimizers sit on the $49 Fantasy plan, so a pick'em player does not need All Access. OddsShopper's DFS side is solid, with projections and entry builders for Underdog, PrizePicks, and Sleeper, but it does not run EV against alt lines across 10 apps.

When OddsShopper Is Better

You Want the Widest Market Coverage

OddsShopper pulls odds from 110+ sportsbooks across 40+ leagues, against Prop Professor's 30+ books. More books means more stale numbers to catch, especially on props and smaller leagues that only a handful of books post. Core also includes the Liquidity Tool, which reads resting orders on Kalshi and Polymarket so you can see where sharp money sits before a sportsbook moves. Pro carries that workflow into live games with in-game EV, in-game arbitrage, and in-game liquidity signals. If you bet live or shop lines across regional books, OddsShopper covers more ground than Prop Professor.

You Want Portfolio Tracking Built In

OddsShopper's portfolio builder groups bets by risk tolerance and reports profit, closing line value, and expected value side by side. A losing week with strong CLV reads very differently from a winning week with bad CLV. Entry is manual, but the framing keeps you judging process over last night's result. Prop Professor does not build its workflow around results tracking, so most bettors will pair it with a separate bet tracking app or a spreadsheet.

You Want to Skip the Setup

OddsShopper surfaces +EV bets without asking you to build a weighting scheme first. Open it, read what the model flags, bet. Prop Professor's customization carries a learning curve, and OddsShopper's free week plus its 300-bet guarantee let you find out which style suits you with little at risk. For how it holds up against a larger scanner, see our OddsShopper vs OddsJam comparison.

Pricing

Prop Professor raised prices this fall and now runs three plans, each billed monthly or weekly. Sportsbook is $49 a month or $20 a week and covers +EV, arbitrage betting tools, real-time odds, and Smart Money. Fantasy is $49 a month or $20 a week for the DFS optimizers, Slip Gen, and the odds screen. All Access is $69 a month or $25 a week and bundles both. Code BETSMART takes 25% off your first month on any tier, bringing All Access to $51.75 and either $49 plan to $36.75. There is no free trial, but logging in opens a free preview of the optimizer pages, and a single $20 week is the cheapest paid way in.

OddsShopper Portfolio EV comes in two tiers. Core is $99.95 a month and covers the pre-game +EV scanner, arbitrage, custom devigging, the Liquidity Tool, and portfolio tracking. Pro is $149.95 a month and adds in-game EV, in-game arbitrage, and in-game liquidity signals. Weekly billing is $29.95 or $44.95, and annual is $999.95 or $1,499.95, about 17% below twelve monthly payments. Both tiers carry a 7-day free trial, and signing up through our link takes 50% off the first month with no code. OddsShopper also advertises a refund of your initial purchase if you place 300+ bets following its recommendations and do not profit, so read the terms before counting on it.

Year one makes the gap plain. On monthly billing with BETSMART, Prop Professor's Sportsbook plan comes to about $576 and All Access to about $811. OddsShopper Core comes to about $1,149 with the half-off first month, or $999.95 paid annually, and Pro to about $1,724 or $1,499.95. Even the cheapest OddsShopper year costs about $424 more than the Sportsbook plan and about $189 more than All Access. If you only bet before kickoff, Core is the OddsShopper plan to price against, since Pro's extra $50 a month buys live-game tools only. The honest counterpoint is risk. OddsShopper gives you a free week and a written guarantee, while Prop Professor's cheapest paid test is $20.

Can These Tools Pay for Themselves?

ROI comes down to how consistently you act on the data. Prop Professor's two-second refresh keeps you off stale lines, and its custom weights sharpen as you learn which books hold up in which markets. OddsShopper's CLV tracking tells you whether your process is working before your win-loss record does.

Run rough numbers. A winning $100 bet at -105 instead of -110 pays about $4.33 more. Say you place 20 bets a week, get the better price on a third of them, and win about half of those. That is roughly $14 a week, or about $60 a month, enough to cover the $49 Sportsbook plan and most of All Access. OddsShopper Core, even at the annual rate of about $83 a month, needs more volume or bigger price gaps to pay for itself. Neither tool makes betting profitable on its own. The payoff scales with how disciplined you are about taking the better number every time.