Assembly Line! vs Cog Hero
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.
Cog Hero
A puzzle game where players arrange gears to make them spin. Connect gears of matching colors to initiate movement, with stacked gears turning if their colors align with neighbors. Unlock new color schemes and challenge yourself with increasingly difficult levels.
- Gear arrangement puzzle
- Color matching mechanics
- Randomly generated boards
- Unlockable color schemes
- Portrait and landscape support
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A board full of gears. Can you get them all turning? Tap a gear to select it, then tap where it should go. Gears spin when they connect to a matching color, and stacked gears turn if either of their colors matches a neighbor. Different colors can overlap and still spin. Locked gears can't be moved, so build a path of other gears to reach them and set them spinning. • Random boards, endless replays • Win to unlock new color schemes • No ads, no internet needed • Easy is free to play as much as you like. Upgrade to unlock Medium, Hard and Max! NEW: Plays in portrait or landscape on iPhone Duo!
Screenshots
Verdict
The clearest difference is rating: Assembly Line! at 4.2 against Cog Hero's 3.4. Assembly Line! also leads on in-app purchases (none vs 1) and update cadence (every 2 months vs every 21 months). On price, review sentiment and ads 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. Cog Hero sells 1 one-off in-app purchase. Assembly Line! asks for nothing beyond the download.
Assembly Line! holds the better App Store score, 4.2 against 3.4. That said, the two scores are not equally well evidenced: Assembly Line! has 57 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 62% of Assembly Line!'s written reviews are positive against 67% of Cog Hero's, so the app with the better star average is not the one people write more warmly about.
Assembly Line! ships an update every 2 months, Cog Hero every 21 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.
| Parameter | Assembly Line! | Cog Hero |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (57 ratings) — better | 3.4 (8 ratings) |
| Positive reviews | 61.7% of reviews | 66.7% of reviews — better |
| Number of ratings | 57 — better | 8 |
| Update frequency | Every 2 months — better | Every 21 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 69 MB | 3 MB |
| Age rating | 4+ | +4 |
| Developer | Joao Reis | Headlight Software, Inc. |
Customer experience
Assembly Line!
Cog Hero
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
Cog Hero
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Assembly Line!
No in-app purchases
Cog Hero
- Unlock All Difficulty Levels$0.99
