Cogs vs Perfect Echo
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Cogs
A remastered 3D puzzle game where you construct intricate machines using sliding tiles. Explore various game modes, from building step-by-step to timed challenges and move-limited puzzles.
- Build complex machines with sliding tiles
- 3D puzzle gameplay
- Inventor Mode for learning
- Time Challenge Mode
- Move Challenge Mode
- Remastered for modern devices
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Cogs is a multi-award-winning puzzle game where players build increasingly complex machines using sliding tiles 3D. Originally launched in 2009, we completely remastered Cogs from the ground up in 2025 to look beautiful on modern phones and tablets. "One of the highest quality puzzle games we've seen." – PocketGamer "The visual design and imagination of the game are stunning, with great attention to detail, and the sound effects are downright enticing." – Adrenaline Vault "A masterpiece visually, as well with the actual gameplay." – AppAdvice INVENTOR MODE Starting with simple puzzles, players are introduced to the widgets that are used to build machines — gears, pipes, balloons, chimes, hammers, wheels, props, and more. TIME CHALLENGE MODE If you finish a puzzle in Inventor Mode, it will be unlocked here. This time, it will take fewer moves to reach a solution, but you only have 30 seconds to find it. MOVE CHALLENGE MODE Take your time and plan ahead. Every tap counts when you only get ten moves to find a solution.
Perfect Echo
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Find the perfect timing and reach the end of the level
Screenshots
Verdict
The clearest difference is price: Perfect Echo at Free against Cogs's $4.99. Perfect Echo also leads on in-app purchases (none vs 4). Cogs's advantage is ads (none vs shown) and update cadence (every 2 months vs every 35 months). On device support and iOS requirement 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
Perfect Echo is free to download; Cogs costs $4.99 up front. Cogs sells 4 one-off in-app purchases. Perfect Echo asks for nothing beyond the download.
Cogs ships an update every 2 months, Perfect Echo every 35 months. The most recent releases landed on September 30, 2026 and September 10, 2026 respectively.
| Parameter | Cogs | Perfect Echo |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.6 (33 ratings) — better | — |
| Positive reviews | 54.6% of reviews | — |
| Number of ratings | 33 — better | — |
| Update frequency | Every 2 months — better | Every 35 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 93 MB | 41 MB |
| Age rating | 4+ | 17+ |
| Developer | Lazy 8 Studios | Marco Andreotti |
Bugs and requests
Cogs
Reported bugs
2 issues- Game crashes on some devices
- Levels don't load properly
Requested features
3 requests- Add a reset option
- Provide more free levels
- Improve restore purchase functionality
Perfect Echo
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Cogs
- Cogs Puzzle Pack 2$0.99
- Cogs Puzzle Pack 3$0.99
- Cogs Puzzle Pack 4$0.99
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- Cogs Puzzle Pack 5$0.99
Perfect Echo
No in-app purchases
