Call all 100 Senate races
Every 2026 Senate contest, with the current candidates, tallied live as you assign them. The chamber count updates with each call so you always know where the majority stands.
VoteMapper is an election simulator for iPhone, iPad, Mac and Apple Vision Pro. Call every Senate race and House district yourself, watch the majority flip as you go, and see exactly what has to happen for either party to take Congress.
Start from the consensus forecast and change your mind about the races you think the models have wrong. Or start from a blank map and build the outcome from scratch.
Download on the App StoreiPhone · iPad · Mac · Apple Vision Pro





Every 2026 Senate contest, with the current candidates, tallied live as you assign them. The chamber count updates with each call so you always know where the majority stands.
The full House map at district level, not state level, with the same running majority count.
The Electoral College map that started it all — assign states, split Maine and Nebraska districts, and watch the electoral vote total move.
Load any past election, compare it against another, and see how the map and the electoral vote math have changed over more than two centuries.
Keep as many maps as you want, name them, come back to them, and sync across your devices with iCloud.
Lock in your predictions, get a shareable certificate with a public verification link, and have your calls scored against real results as races are called.
Plenty of people never touch the 2026 maps. They load 1912 to watch Roosevelt and Taft split the Republican vote, or 1876 to see how close it really got, and then start changing things to see what it would have taken. That is a first-class way to use VoteMapper, not a side effect of one built for forecasting.
Every cycle, not a highlight reel of the famous ones. Pick a year and the map fills in with what actually happened.
States carry the electoral votes they actually held that year, not today's numbers painted onto an old map. The finish line moves with them: 35 electors won it in 1788, out of 69. It takes 270 now.
Load an early election and the states admitted later are greyed out and cannot be called at all. The map grows as the country does.
Federalists and Democratic-Republicans, Whigs and Free Soilers, Know Nothings and the Constitutional Union, Populists, Bull Moose and La Follette Progressives, Southern Democrats and American Independents — each in its own color, rather than flattened into modern red and blue.
A loaded election is an ordinary editable map. Flip a state in 2000, hand Roosevelt the states Taft carried, redistribute a third party's electors — the totals recalculate against that year's majority, not against 270.
Compare any year against any other and watch where the coalitions moved, which states changed hands, and how the electoral weight shifted between them.
VoteMapper covers the same ground — an interactive electoral map you fill in yourself — as a native app for iPhone, iPad, Mac and Vision Pro, with 2026 Senate and House maps alongside the presidential one, offline access, and saved scenarios that sync across your devices.
Open the Senate map, start from the consensus forecast, and change the races you disagree with. The majority count updates as you go, so you can see which handful of races actually decide control rather than reasoning about all 100 at once.
Yes — all 435 districts, called individually, with a running majority count.
No. It ships with a consensus forecast as a starting point and then gets out of the way. Every call is yours, and you can throw out the starting point entirely.
Every presidential election from 1788 through 2024 is in there, and you can stay entirely in the historical maps if the midterms are not what brought you. Nothing about the app pushes you toward the current cycle.
Yes. Historical elections render the parties that actually contested them — Whigs, Federalists, Populists, Bull Moose Progressives, Southern Democrats and the rest — with their own colors and their own electoral vote counts, including states that split their electors.
That is the main thing people do with them. Load any year, then reassign whatever you want. The running total recalculates against the number of electors that actually existed that year and the majority that year required.
iPhone, iPad, Mac and Apple Vision Pro, with iCloud sync across all of them.
People who follow elections closely enough to disagree with the forecasts. People who follow them for the fun of it and mostly want to pull apart old maps. Students, teachers and anyone working out how 435 districts and 100 Senate seats add up to control of Congress. It's a tool for working through the math yourself, not a news feed.
Download on the App StoreVoteMapper is made by Scattered Labs, a one-person studio. VoteMapper is not affiliated with any political party, campaign or news organization.