Escape vs Zero/Sum
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Escape
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The game rule is very simple! Press left or right button and find the escape point. But, as you see, the escape point is not easy to discover. This game is easy to play and it is very fun!
Zero/Sum
Solve mathematical puzzles to uncover a cure for cancer in this unique puzzle game. Experience an 80s action movie-inspired storyline with live-action cinematics and a variety of fresh puzzle mechanics. Features daily challenges and time trials.
- Unique and original puzzle gameplay
- 80s action movie-inspired storyline
- Full motion video cinematics with real actors
- Variety of puzzle types (melting, number)
- Daily Challenge Mode with new puzzles
- Time Trial mode
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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). FEATURES - A completely UNIQUE and ORIGINAL puzzle game! - Puzzle gameplay that will make you feel and look SMART! - A thrilling, 80s ACTION MOVIE-inspired storyline! - Full motion video GREEN SCREEN cinematics! With REAL human ACTORS! - NO mention of CANDY or CUPCAKES or sweets of any kind in the story at all! - A variety of different puzzle types and mechanics to keep things FRESH (melting puzzles, number puzzles, and so much more)! - A Daily Challenge Mode featuring 10 NEW puzzles EVERY DAY! - Time Trial mode - try to beat your best time on RANDOM PUZZLES! - Completely INDEPENDENTLY developed and published! (Support your local punk band)! I ignored my newborn child to make this game, please ignore yours to play it!* *Note: I worked on the game every night after my son fell asleep, there is nothing more important to me than being a father. That being said, this game is a CLOSE second. Like neck and neck, really.
Screenshots
Verdict
The clearest difference is ads: Zero/Sum at none against Escape's shown. Zero/Sum also leads on update cadence (every 2 months vs every 14 months) and iOS requirement (8.0 vs 15.6). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Escape ships an update every 14 months, Zero/Sum every 2 months. The most recent releases landed on November 9, 2026 and November 2, 2026 respectively.
| Parameter | Escape | Zero/Sum |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.2 (27 ratings) — better |
| Positive reviews | — | 53.8% of reviews |
| Number of ratings | — | 27 — better |
| Update frequency | Every 14 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 8.0 — better |
| Further details — not scored | ||
| Size | 89 MB | 973 MB |
| Age rating | 4+ | 12+ |
| Developer | Oscar Tsang | Sean Kearney |
In-app purchases
Escape
No in-app purchases
Zero/Sum
No in-app purchases









