Senior Assassin apps, compared

We build one of the tools on this page, so read us with that in mind. What follows is still the honest version: there are things the other options do that we cannot do, and if one of those things matters to your class you should go use it. The short answer is that the apps differ mostly on two questions — does it cost money, and does it track where players are — and those two answers should decide it for you.

Verified August 2026 from each product's own public pages. Pricing and features in this category change between seasons; check the source before you commit a whole class to one.

The short version

• Biggest and best known: Splashin. It is the one Wikipedia names, and the one your class has probably heard of.
• Best free native app: HuntinHuntin or Parabellum, depending on whether you want more features or fewer.
• Best safety feature anyone has shipped: Parabellum's speed limits, genuinely.
• Best if you want a scoreboard and push notifications: Catcher Games, free to ten players.
• Best if you do not want downloads, accounts, or location data: what we build. That is the whole reason it exists.

Splashin

The category leader and the app most seniors mean when they say "the app." It handles the full season — rosters, purges, eliminations — and it is the only one with real name recognition, which matters more than feature lists when you are trying to get a hundred classmates to actually sign up for the same thing.

It also broadcasts participating players' live locations as a gameplay mechanic. For some classes that is the fun part. It is worth knowing that it is happening, that it means a live map of where teenagers are exists on someone's server, and that location-driven pursuit is a factor in the vehicle incidents on our safety page. Decide deliberately rather than by default.

Catcher Games

The most SEO-visible of the group, and the most conventional product: automatic target assignment, elimination tracking, real-time scoreboards, push notifications. Free for games up to ten players; past that the host pays a one-time fee per player, listed at $1.50, and only for players who actually join.

The per-player model is genuinely fair — you do not pre-pay for a roster that does not show up. For a class of 200 it is still real money coming out of one student's pocket unless they collect it back.

HuntinHuntin

Free, on iOS and Android, with no ads and no paywall. One target per round, tag to advance, automatic round tracking. It does the core loop and does not try to do more than that.

If your class wants a native app with notifications and nobody wants to pay or organize much, this is the straightforward pick, and "free with no ads" is a real claim rather than a trial tier.

Parabellum

The most configurable of the group, free with no subscriptions or player limits: geo-fencing, schedules, purges, immunity, revives, team or solo play.

It also ships speed limits — the app can tell when a player is moving at vehicle speed. Given that every death connected to this game has involved a car, that is the single most useful safety feature anyone in this category has built, and we will say so plainly even though they are a competitor. If your class has a car problem, this is a real reason to pick Parabellum. Note that a speed limit implies the app knows how fast you are moving, which means location data.

Running it with no app (what we build)

This site is not an app. It is a set of web pages: an editable rulebook you publish under a class code, a target generator, and a live board students open in whatever browser is already on their phone. Nobody downloads anything and nobody makes an account.

Three things follow from that, and they are the only reasons to choose it:

• No location data exists. Not stored, not shared, not collectible. There is nothing to broadcast or leak because it is never gathered.
• We cannot read your game. The class code never reaches our server. Rulebook, roster and targets are encrypted in the organizer's own browser and stored as ciphertext under a hash, so a roster of real student names is not sitting in a database we can open. The detail is here.
• Free with no pot. No entry fee and no jackpot, by rule rather than by pricing tier. Entry-fee pots are the part of this game schools object to most.

What we do not do

Being honest about this is the point of the page:

• No push notifications. A web page cannot tap someone on the shoulder the way a native app can. Students check the board; it does not chase them. If your class needs pinging, use a native app.
• No GPS features at all. No geo-fencing, no proximity alerts, no speed limits. If you want Parabellum's speed limiting, we structurally cannot offer it.
• No brand recognition. Splashin is the name your class knows. We are a website they have not heard of.
• Organizer rights live on one device. Your edit key is in your browser's local storage. There is a backup download, but lose the device without it and you lose control of the game. That is the direct cost of not having accounts.

How to actually choose

1. Does anyone object to location tracking? If a parent or administrator would, that decides it — pick a no-location option.
2. Will students actually download an app? If getting the whole class onto one app is the hard part, a link that opens in a browser removes the step entirely.
3. Is anyone willing to pay? If not, that rules some options out at scale.
4. Do you need notifications? If yes, you need a native app. This is the clearest reason to not use us.
5. Does your class have a car problem? Then read the safety page first, whatever tool you pick. No app fixes that; the rulebook does.

Whichever you choose, the rules matter more than the software. Ours are free to copy even if you run your game somewhere else.