Assembly Line! vs Just Button
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Assembly Line!
Build and manage an efficient assembly line to maximize profits. This idle tycoon game features strategic machine placement and resource management. Earn money even when offline and unlock upgrades to become a wealthy industrialist.
- Build and manage assembly lines
- Strategic machine placement
- Resource crafting and selling
- Offline revenue generation
- Machine and resource information
- Over 50 resources and 18 machines
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Assembly Line - Build and manage your assembly line! Assembly Line combines elements from idle and tycoon games. You need to build the best assembly line in order to have the most profit possible. There're different types of machines that will help you achieve that, but you must use them strategically. Become rich as you build the best assembly line ever! The plan is simple: Build resources and then sell them. Start with the initial machine and create basics resources, and use more advanced machines to craft and create more complex resources. When you go offline the machines will keep working and still generate revenue, so when you come back you will have a pile of money to swim on it. Just like Scrooge Mcduck! :) It is only up to you how much you can make, Assembly Line is an idle game, but with the combination of tycoon and strategy elements you have a lot of choices in how you will make money. Assembly Line also offers you an information menu, where you can read information about each individual machine and resource to make the best decision on how you will set up your line. Features: • 18 different machines that will help you manage your assembly line! • More than 50 different resources to make and sell! • 20+ upgrades that will increase your profit! • Buy different assembly lines, to increase your revenue! • Earn money even when offline! • Become rich as you build and manage the best assembly line! • Not internet required.
Just Button
This is a minimalist application that provides a single interactive button. Each tap increments a counter displayed on the screen. It offers a distraction-free experience with no advertisements or in-app purchases.
- Single interactive button
- Number counter
- No ads
- No in-app purchases
- No data mining
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No Ads, No In-App Purchases, No Data-Mining. Just Button is incredibly simple. You tap the button, and the number goes up. It is, after all, just a button.
Screenshots
Verdict
Assembly Line! and Just Button both sit at 4.2 stars, but that hides the real split: 83% of Just Button's written reviews are positive against 62% of Assembly Line!'s. Just Button also leads on ratings volume (944 vs 57) and update cadence (every 3 weeks vs every 2 months). On price, rating, ads 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.2 for Assembly Line! against 4.3 for Just Button. That said, the two scores are not equally well evidenced: Just Button has 944 ratings behind it against 57, so its average is the more settled of the two. Written reviews are what separate them: 62% of Assembly Line!'s written reviews are positive against 83% of Just Button's.
Assembly Line! ships an update every 2 months, Just Button every 3 weeks. The most recent releases landed on October 11, 2026 and October 16, 2026 respectively.
| Parameter | Assembly Line! | Just Button |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (57 ratings) | 4.3 (944 ratings) — better |
| Positive reviews | 61.7% of reviews | 83.3% of reviews — better |
| Number of ratings | 57 | 944 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 69 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Joao Reis | aleros.io LLC |
Customer experience
Assembly Line!
Just Button
User reviews
Assembly Line!
From 57 App Store ratingsWhat we love
- 🚀 Amazing and addictive game
- 👍 Satisfying factory building
- 🤓 Challenging and strategic
- 🎮 Fun and engaging gameplay
Room to improve
- 🐛 Bugs with transporters and multi-selector
- 🔧 Some features not working as expected
- 💰 Unbalanced progression and profitability
- 📱 Compatibility issues with iPhone X
Just Button
From 944 App Store ratingsWhat we love
- 🚀 Addictive and engaging gameplay
- 👍 Unique and minimalistic design
- 🔒 No ads or in-app purchases
- 💡 Surprising depth and story
- 🚀 Smooth and responsive controls
Room to improve
- 🐛 Occasional bugs and glitches
- 🔊 Loud sound effects that can't be muted
- 🤔 Frustrating mini-games and difficulty spikes
- 🕰️ Repetitive and grindy progression
Bugs and requests
Assembly Line!
Reported bugs
4 issues- Transporter menu not closing
- Filtered robotic arm not working properly
- Machines resetting after closing the app
- Offline earnings not properly credited
Requested features
4 requests- Copy and paste functionality
- More blueprints and production options
- Improved offline earnings calculation
- Better UI and number display for high values
Just Button
Reported bugs
3 issues- Progress reset after purchasing certain upgrades
- Inability to exit certain mini-games without restarting
- Inconsistent button responsiveness
Requested features
3 requests- Option to disable sound effects
- Ability to save progress and resume later
- More variety in gameplay and mini-games
In-app purchases
Assembly Line!
No in-app purchases
Just Button
No in-app purchases
