Gun Builder Simulator vs Idle Gun Assembly
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Gun Builder Simulator
Explore a vast arsenal of realistic firearms, from assault rifles to pistols. Customize weapons with various attachments and experience authentic mechanics, including muzzle flashes and shell ejection. Enjoy unlimited ammo and simulation shooting with over 150 levels.
- Unlimited Ammo
- Realistic Muzzle Flashes
- 3D Ejecting Shells
- Functional Attachments
- Weapon Customization
- Simulation Shooting
- Shooting Range
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From the most popular military assault rifles to the pistols, machine guns, sniper rifles, shotguns, sub-machine guns with unlimited ammo, realistic muzzle flashes and 3D ejecting shells and functional attachments. Every single weapon is for free with all attachments unlocked. Contains many different camouflage accessories such as optics, lasers, lights, reflex sights and much more! All guns are completely customizable! If you are in love with guns as we are you'll experience an unforgettable experience! Airsoft fans will love this. ***FEATURES*** - Unlimited Ammo - Super Slow motion - Shake sensors to fire - Realistic smoke and muzzle flashes - 3D gun bullets and shells - Realistic Sounds - Authentic Weapon Mechanics - All screen supported modern gun weapons - Detailed HD & cool graphics - Simulation shooting - Selective fire - Shooting Range - Over 150 levels We have collected the best firearms in the world for our simulator: ***WEAPONS INCLUDE*** • Bushmaster ACR (adaptive combat rifle) • 1911 pistol • Dragunov SVD Sniper rifle • MPA .45 ACP submachine gun • M4 Tactical Shotgun • AR-15 custom carbine Assault Rifle When you completely build your weapon you can take screenshot and share it with friends or via social networks. Whatever you choose in build options will be saved on your device so you do not have to worry about saving. In the options you can choose how to shoot with your gun, select slow or normal motion, chose unlimited ammo or the normal number of bullets within magazine. It’s the same for vibrations, smoke effects and screen rotation. Download the best gun builder app for free now!
Idle Gun Assembly
Design, build, and upgrade unique weapons to destroy targets. Mix and match parts, paint your creations, and level up to unlock new components for maximum damage and in-game cash. Become the ultimate gunsmith in this idle simulation game.
- Design custom weapons
- Mix and match gun parts
- Paint weapon creations
- Upgrade for maximum damage
- Unlock new gun parts
- Destroy insane targets
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Design and use the most craziest and powerful weapons. Use it to blow up insane targets. Mix, Match and Paint to create your favorite gun. Upgrade and get maximum damage and cash. Unlock more gun parts as you Level Up. Experience the epic Gun idle game and Become the best Gun Smith!!
Screenshots
Verdict
The clearest difference is review sentiment: Gun Builder Simulator at 68% against Idle Gun Assembly's 0%. Gun Builder Simulator also leads on rating (4.3 vs 2.3) and ratings volume (307 vs 4). Idle Gun Assembly's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price 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. Gun Builder Simulator sells 1 one-off in-app purchase. Idle Gun Assembly asks for nothing beyond the download.
Gun Builder Simulator holds the better App Store score, 4.3 against 2.3. That said, the two scores are not equally well evidenced: Gun Builder Simulator has 307 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 68% of Gun Builder Simulator's written reviews are positive against 0% of Idle Gun Assembly's.
Gun Builder Simulator ships an update every 5 months, Idle Gun Assembly every 11 days. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.
| Parameter | Gun Builder Simulator | Idle Gun Assembly |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (307 ratings) — better | 2.3 (4 ratings) |
| Positive reviews | 67.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 307 — better | 4 |
| Update frequency | Every 5 months | Every 11 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 95 MB | 106 MB |
| Age rating | 17+ | 9+ |
| Developer | Marijana Peric | Studd Technology Solutions |
Customer experience
Gun Builder Simulator
Idle Gun Assembly
In-app purchases
Gun Builder Simulator
- Premium Version$2.99
Idle Gun Assembly
No in-app purchases
Questions
Is Gun Builder Simulator free?
Is Idle Gun Assembly free?
Which has better reviews, Gun Builder Simulator or Idle Gun Assembly?
Do Gun Builder Simulator or Idle Gun Assembly have ads?
Which is updated more often, Gun Builder Simulator or Idle Gun Assembly?
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