Nekosan vs Responsibility Zero
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Nekosan
Guide a cat through challenging dungeons to retrieve stolen stars. Utilize one-finger controls for running, sliding, wall jumping, and flying across numerous levels. Embark on an adventure to reclaim what the mice have taken.
- Run, slide, wall jump, and fly mechanics
- Dozens of challenging levels
- One-finger control gameplay
- Retrieve stolen stars
- Infiltrate mouse dungeons
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Oh no… The mice stole all the stars :’( Only a cat can infiltrate their dungeons to get them back! Help Nekosan and his friends to run, slide, wall jump, and fly through dozens of devilish levels. And all of this with one finger! Are you up to the challenge? :3
Responsibility Zero
Engage in a quirky game where you can offload your troubles onto others. Explore over 100 unique methods, unlock secret levels, and play as diverse characters with amusing sound effects. This game offers a lighthearted escape with plenty of hidden content.
- Over 100 ways to give trouble
- Over 20 secret levels
- Play as 10+ characters
- Weird sound effects
- Easter eggs
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- Over 100 ways to give your trouble to others. - Over 20 secret levels and easter eggs. - Play as over 10 different characters: memer, elephant, robot and more. - With some really weird sound. Turn on audio for more fun. - Game is created by very responsible developers ʘ‿ʘ You won't want to spend a single penny in this game. P.S. “The price of greatness is responsibility.”
Screenshots
Verdict
The clearest difference is ads: Responsibility Zero at none against Nekosan's shown. Responsibility Zero also leads on update cadence (daily vs every 2 months) and rating (4.9 vs 4.6). On price, review sentiment, ratings volume and in-app purchases 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. Nekosan sells 5 one-off in-app purchases and Responsibility Zero sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Responsibility Zero holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 869 and 831 respectively. Written reviews complicate that: 83% of Nekosan's written reviews are positive against 77% of Responsibility Zero's, so the app with the better star average is not the one people write more warmly about.
Nekosan ships an update every 2 months, Responsibility Zero daily. The most recent releases landed on September 30, 2026 and September 28, 2026 respectively.
| Parameter | Nekosan | Responsibility Zero |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (869 ratings) | 4.9 (831 ratings) — better |
| Positive reviews | 82.6% of reviews — better | 77.3% of reviews |
| Number of ratings | 869 — better | 831 |
| Update frequency | Every 2 months | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 79 MB | 125 MB |
| Age rating | 4+ | 4+ |
| Developer | 1Button SARL | Feeling Game Company Ltd. |
Customer experience
Nekosan
Responsibility Zero
User reviews
Nekosan
From 869 App Store ratingsWhat we love
- 😻 Cute and adorable cat character
- 👍 Simple and intuitive one-tap controls
- 🕹️ Challenging and addictive gameplay
- 🎨 Visually pleasing minimalist design
Room to improve
- 🔍 Unclear controls and lack of tutorial
- 💰 Frequent ads and intrusive monetization
- 🤯 Extremely difficult and frustrating levels
- 🐛 Crashes and performance issues after updates
Responsibility Zero
From 831 App Store ratingsWhat we love
- 👍 Fun and entertaining
- 💡 Unique and creative gameplay
- 🤗 Relatable and humorous
- 🙌 Enjoyable experience
Room to improve
- 🙄 Repetitive gameplay
- 🤯 Excessive ads
- 🤔 Confusing controls
- 🥱 Outdated graphics
Bugs and requests
Nekosan
Reported bugs
3 issues- Game crashes on launch after recent update
- Inability to exit video ads without watching them
- Progress not saved after exiting the game
Requested features
4 requests- More levels and content updates
- Better tutorial and control explanation
- Option to remove ads for a one-time fee
- Restart button for quick retries
Responsibility Zero
Reported bugs
2 issues- Crashes on older devices
- Freezing issues
Requested features
4 requests- More level variety
- Improved control scheme
- Reduced ad frequency
- Graphical updates
In-app purchases
Nekosan
- Pack of 9 Lives$0.99
- Key$0.99
- Maurice$0.99
Show 2 moreShow fewer
- Skip a Stage$0.99
- Remove All Ads$2.99
Responsibility Zero
- Parent$1.99
- Worker$1.99
- Robot$1.99
Show 7 moreShow fewer
- Ballet$1.99
- Swimmer$1.99
- Zombie$1.99
- Elephant$1.99
- Muscle$1.99
- Developer$1.99
- Black Hole Bundle$2.99
