App Store ratings
27
0.0% no change vs Aug 8, 2026- Average rating
- 4.2
Mobile game · 2018
Zero/Sum
"Zero/Sum is a cinematic puzzle game that combines unique puzzle gameplay with a ridiculous action movie storyline- complete with live action cutscenes!"
Estimated daily players
~810.0% no change vs one week ago
Range 8–490
Estimated total players
~1,6000.0% no change vs one week ago
Range 810–3.2K
Estimates, not counts — nobody publishes real player numbers for mobile games, so these are modelled from public signals. How we work them out
May 16, 2018iOS
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Player estimates
Nobody publishes how many people play Zero/Sum, so these figures are modelled from the public counts on App Store, Twitch. Each count stands in a roughly known ratio to a population — one Play rating per ~45 players, one Steam review per ~35 owners — and the estimates below combine those readings, weighted by how much each source can be trusted to speak for the whole game. Read the range as the answer and the headline as its middle.
Estimated daily players
~81
0.0% no change vs one week agoRange 8 – 490
No source reports a live count for this game, so this is a share of the total player base — a genre assumption rather than an observation, which is why the range is wide.
Estimated total players
~1,600
0.0% no change vs one week agoRange 810 – 3.2K
Everyone who has ever played, from the cumulative counts: store ratings and installs, Steam reviews, members and subscribers.
Estimated total players over time
2 readings · last 2 days
Average estimated players per month
| Month | Estimated total players | Change |
|---|---|---|
| August 2026 | ~1,600 | — |
Community activity
Last checked Aug 9, 2026
Store signals
How many people have rated, reviewed or installed Zero/Sum where it is sold.
Community signals
How many people gather around Zero/Sum outside the stores — members, subscribers and live viewers.
Not tracked for Zero/Sum: Google Play, Steam, Discord, Reddit, YouTube. A platform appears here once the game has a link to it — most mobile games have no Steam port or subreddit, so a gap is normal rather than a sign the game is small.
Storyline
"On the eve of discovering a mathematical cure for cancer, your mentor, Professor Claire Liddy, is murdered. Fortunately, before she died, the Professor was able to erase many of the plus and minus signs with her bloody hands, saving the cure from falling into the hands of her killers. Now it is up to you to fill back in the missing parts of the equation and resolve your professor's cure. It's up to you to cure cancer -- AGAIN! (It's a comedy)."
Trailers
Gameplay video
Trailer
Frequently asked questions
How many people play Zero/Sum?
We estimate that about 1,600 people have played Zero/Sum — plausibly between 810 and 3.2K. Around 81 of them play on a given day, in a range of 8 and 490. Both figures are modelled from public counts on App Store and Twitch rather than published by the developer, so read them as a scale rather than as a headcount.
Is Zero/Sum still active?
Yes. Zero/Sum is holding steady — it measured within a percent of where it was a week ago. We recheck every source daily, and the charts on this page show each platform's readings over time.
How are the Zero/Sum player estimates worked out?
Nobody publishes player counts for mobile games, so we infer them. Each public count we can read is converted into a population using a documented ratio — roughly one Google Play rating per 45 people who played, one Steam review per 35 owners, one Discord member per 40 players — and the live counts (Steam concurrents, members online, Twitch viewers) are converted the same way into a daily figure. Those separate estimates are then averaged in proportion to how much each source can be trusted, which is why sources that disagree widen the published range instead of cancelling out. This page is built on 2 readings taken since August 8, 2026.
When was Zero/Sum released?
Zero/Sum was released on May 16, 2018 for iOS.
What platforms is Zero/Sum available on?
Zero/Sum is available on iOS. You can get it from App Store (iPhone) and App Store (iPad).