Comparison

Optical Inquisitor Zero vs Nuclear Day Survival

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Optical Inquisitor Zero

Experience a retro sniper adventure set in 1988. Help Tommy Rissken get revenge on those who betrayed him and return to his daughter. Features superior sniper mechanics, ragdoll physics, and an 80s soundtrack.

Highlights
  • Superior sniper mechanics
  • Ragdoll physics
  • Destructible bodies
  • 80s style soundtrack
  • Interactive level elements
  • Old 80s style cell phones
Features
Read full description

*Optical Inquisitor Zero is the Free version of the game* **Optical Inquisitor 17+ - Uncensored version without Ads available!** Its the year 1988. Acid wash jeans are in. Our hero, Tommy Rissken has been betrayed by his friends and had to serve a prison sentence for 8 years. Now he's back with a vengeance. With your help, he'll get his revenge on his 'friends' and be able to return to his daughter. **NOTE: Compatible with iPhone 4, iPad 2 and up.** Features: - Superior Sniper mechanics - Great ragdoll physics, destructible bodies - Racing and Underground Gamblers Club (only in 17+ edition) - Great cartoon animations - Amazing 80s style soundtrack from 'Perturbator', 'RTRY', 'Vector Hold', 'Protector-101', 'Palm Highway Chase', 'Tommy', 'Betamaxx', 'Flash Аrnold', 'Silenx', 'M-Town Vice', 'Vincenzo Salvia', 'Hot Hot Hawk', 'Brutal Pony Riders', 'Bestrack', 'The Аstral Stereo Project', 'Bourgeoisie', 'Mr Pteez', 'Quasars', 'DrPECCO' - Build your own weapons (only in 17+ edition) - Great interactive elements in levels - Old 80's style cell phones - Brutal interrogations (only in 17+ edition) - No IAP =Trailer on Youtube= http://youtu.be/Tn_GHBDlvmc Follow us for the latest info and game news! • http://crescentmoongames.com/other-games/ • http://facebook.com/crescentmoongames • http://facebook.com/OpticalInquisitor • http://twitter.com/cm_games

About

Nuclear Day Survival

Experience a gripping survival game set in a post-nuclear city. Battle radiation, hunger, and disease while uncovering a compelling story. Your choices will determine the fate of yourself and others.

Highlights
  • Hard survival mechanics
  • Unique storyline and quests
  • Dynamic game world
  • Crafting system
  • Explore ruined environments
Features
Read full description

A captivating survival game with a unique atmosphere. Survive in a city that was hit by a nuclear attack. Can you survive in a world where there was a nuclear explosion? Radiation, hunger, disease and suffering are all around you. Your goal is to escape from the dying city and find the love of your youth. Unique atmosphere and piercing to the depths of the story. Reveal the mystery of the missing documents and make a choice: save the people around you or leave them to perish.. What awaits you in the game: - Hard survival. You will be haunted by the typical problems of a survivor, such as hunger, disease, thirst, a gradually coming nuclear winter and bandits. - Unique story. Along the way, you will find many stories of different people, exciting puzzle quests and the right to choose during the passage of quests. - Dynamic game world. In the game world, weather conditions will change, the balance of power of groups of people outside, and so on. Explore abandoned and ruined. Peculiarities: - Crafting system - Unique storyline - Exploring an interesting world Now - Demo Version.

Screenshots

Optical Inquisitor Zero4 screens
Nuclear Day Survival4 screens

Verdict

The call

The clearest difference is rating: Optical Inquisitor Zero at 4.4 against Nuclear Day Survival's 3.8. Optical Inquisitor Zero also leads on in-app purchases (none vs 18) and review sentiment (90% vs 59%). Nuclear Day Survival's advantage is update cadence (every 2 months vs every 7 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Nuclear Day Survival sells 18 one-off in-app purchases. Optical Inquisitor Zero asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Optical Inquisitor Zero holds the better App Store score, 4.4 against 3.8. That said, the two scores are not equally well evidenced: Optical Inquisitor Zero has 2.6K ratings behind it against 354, so its average is the more settled of the two. Written reviews point the same way: 90% of Optical Inquisitor Zero's written reviews are positive against 59% of Nuclear Day Survival's.

UpkeepUpdate frequency

Optical Inquisitor Zero ships an update every 7 months, Nuclear Day Survival every 2 months. Both last shipped on October 30, 2026.

Scorecard7 real differences · 3 level
Optical Inquisitor Zero versus Nuclear Day Survival: the parameters behind the verdict, then further details
ParameterOptical Inquisitor ZeroNuclear Day Survival
PriceFreeFree
Rating4.4 (2.6K ratings) — better3.8 (354 ratings)
Positive reviews90.3% of reviews — better59.5% of reviews
Number of ratings2.6K — better354
Update frequencyEvery 7 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better15.0
Further details — not scored
Size60 MB734 MB
Age rating17+9+
DeveloperCrescent Moon Games LLCAPPWILL COMPANY LTD

Customer experience

Optical Inquisitor Zero

All ratings2,605 ratings
Positive84.1%
Neutral10.0%
Negative5.9%
Written reviews1,315 reviews
Positive90.3%
Neutral5.8%
Negative4.0%

Nuclear Day Survival

All ratings349 ratings
Positive68.2%
Neutral13.5%
Negative18.3%
Written reviews279 reviews
Positive59.5%
Neutral16.5%
Negative24.0%

User reviews

Optical Inquisitor Zero

From 2.6K App Store ratings

What we love

  • 👍 Fun gameplay
  • 🚀 Good value for money
  • 🎨 Interesting retro style
  • 💥 Satisfying sniper mechanics

Room to improve

  • 🔒 Censored content
  • 🔋 Frequent ads
  • 🐛 Occasional crashes or bugs
  • 🕰️ Short story mode

Nuclear Day Survival

From 354 App Store ratings

What we love

  • 🤑 Pocket version of Stalker
  • 🔥 Unique and cool game
  • 👍 Great mix of grinding and story
  • 🚀 No ads

Room to improve

  • 🐛 Buggy at times
  • 🔥 Progression halted due to bugs
  • 🐢 Slow traveling locked behind ads
  • 🤯 Quests and rewards are broken
  • 🤕 Radiation levels and crafting values are inconsistent

Bugs and requests

Optical Inquisitor Zero

Reported bugs

2 issues
  • Levels resetting after crashes
  • Difficulty progressing past certain missions

Requested features

4 requests
  • Uncensored version
  • More missions and levels
  • Ability to disable ads
  • Improved performance on older devices

Nuclear Day Survival

Reported bugs

7 issues
  • Progression blocked at certain points due to bugs
  • Crafted items disappearing from inventory
  • Quests getting stuck or not progressing
  • Crouching bug that prevents standing up
  • Enemies/objects becoming invincible or glitched
Show 2 more
  • Saves getting corrupted or lost
  • Inability to leave certain areas or progress further

Requested features

6 requests
  • Add Chinese language support
  • Allow replaying individual missions/quests without restarting the game
  • Reduce cooldown on raids and expeditions
  • Add more content and larger-scale updates
  • Improve inventory management
Show 1 more
  • Fix no-ads purchase functionality

In-app purchases

None

Optical Inquisitor Zero

No in-app purchases

18 purchases

Nuclear Day Survival

One-time18
  • Panacea$0.99
  • Tickets Bundle$1.99
  • Protection$2.49
Show 15 more
  • Healing$2.49
  • Tickets Pouch$2.99
  • Starter Pack$2.99
  • Box of Tickets Sale$3.89
  • Tickets Bag$3.99
  • Firepower$3.99
  • Disabling advertising$4.99
  • Sniper$5.49
  • Tickets Backpack$5.99
  • No ADS$5.99
  • Suitcase Tickets Sale$7.99
  • Tickets Box$8.99
  • Suitcase with Tokens$14.99
  • Cabinet with Tokens$29.99
  • UAZ of tokens$59.99

Questions

Is Optical Inquisitor Zero free?
Optical Inquisitor Zero is free to download, with no in-app purchases.
Is Nuclear Day Survival free?
Nuclear Day Survival is free to download, with in-app purchases available.
Which has better reviews, Optical Inquisitor Zero or Nuclear Day Survival?
Optical Inquisitor Zero is rated higher. Optical Inquisitor Zero averages 4.4 out of 5 from 2.6K ratings, while Nuclear Day Survival averages 3.8 from 354 ratings.
Do Optical Inquisitor Zero or Nuclear Day Survival have ads?
Neither Optical Inquisitor Zero nor Nuclear Day Survival shows ads.
Which is updated more often, Optical Inquisitor Zero or Nuclear Day Survival?
Optical Inquisitor Zero ships an update every 7 months, and Nuclear Day Survival every 2 months. Most recently, Optical Inquisitor Zero was updated on October 30, 2026 and Nuclear Day Survival on October 30, 2026.

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