Invisible Dragons vs SoundEcho
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Invisible Dragons
Embark on a text-based strategy adventure in a frozen world. Build a dragon empire, manage resources like gold and spells, and survive an ice apocalypse. Experience the magic world with interactive notifications and Apple Watch integration.
- Text-based strategy gameplay
- Build a dragon empire
- Resource management (gold, spells)
- Interactive notifications
- Apple Watch integration
- Offline play
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The age of the Ice Apocalypse has begun. The world falls into absolute darkness and everything is frozen to death. Everything except the Dragon Eggs. Create your Dragon empire and try to survive. Invisible Dragons is a unique text based strategy about ice and fire, dragons and gold, spells and rituals. Stay in touch with your magic world through the interactive notification and get the full experience from your Apple Watch. Internet connection not required. – Developed by Doubble – Doubble.co Please don't hesitate to contact us with any questions and offers: dragons@doubble.co
SoundEcho
A fun and accessible memory game using sound cues. Players match pairs of buttons that produce the same sound to clear the board. Supports multiple sound themes and player counts, with Game Center integration.
- Sound-based memory matching
- VoiceOver accessibility
- Animal and computer sound themes
- Multiple difficulty levels (10, 15, 20 sounds)
- 2-4 player real-time multiplayer
- Game Center integration
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SoundEcho is a memory game with sounds that is easy to play and fully accessible with VoiceOver. SoundEcho is enjoyable for blind, low vision and sighted players alike. The gameplay is simple. Buttons showing a letter, number or smiley are spread across the screen. Tap a button to hear a sound. If two different buttons produce the same sound, they disappear. Find all matching sounds as quickly as possible with as few taps as you can. Choose from 4 sound categories: the classic animal and computer sounds, or the alternative traffic and musical instrument sounds. Each game contains 10, 15 or 20 sound pairs. SoundEcho integrates Game Center so you can compare scores, track achievements and play real-time matches with 2 to 4 players. SoundEcho was nominated for the 2023 Golden Apple Awards by the AppleVis website. Try SoundEcho for free today.
Screenshots
Verdict
The clearest difference is review sentiment: SoundEcho at 100% against Invisible Dragons's 47%. SoundEcho also leads on rating (4.3 vs 3.4). Invisible Dragons's advantage is in-app purchases (none vs 1) and ratings volume (49 vs 3). On price, update cadence, ads and monetization model 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. SoundEcho sells 1 one-off in-app purchase. Invisible Dragons asks for nothing beyond the download.
SoundEcho holds the better App Store score, 4.3 against 3.4. That said, the two scores are not equally well evidenced: Invisible Dragons has 49 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 47% of Invisible Dragons's written reviews are positive against 100% of SoundEcho's.
Invisible Dragons ships an update every 3 weeks, SoundEcho every 5 weeks. Both last shipped on October 24, 2026.
| Parameter | Invisible Dragons | SoundEcho |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (49 ratings) | 4.3 (3 ratings) — better |
| Positive reviews | 47.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 49 — better | 3 |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 8.3 — better | 17.0 |
| Further details — not scored | ||
| Size | 89 MB | 7 MB |
| Age rating | 4+ | 12+ |
| Developer | CONCEPT360 GmbH | Kristof Nijs |
Customer experience
Invisible Dragons
SoundEcho
Bugs and requests
Invisible Dragons
Reported bugs
22 issues- Cult/sacrifice mechanic broken, game freezes or crashes
- Sound does not mute even when settings are off
- Game hangs on cult symbol image
- Sacrifice animation loop, no progress on restart
- Freeze when trying to form cult
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- Star on sacrifice screen stays on
- Game freezes on cult
- Numbers overflow to 0.0 (e.g., fire production)
- Invisible fire after a while
- Late game glitches zeroing out production
- Overflow error with large numbers
- Mana ritual card seems broken
- Notifications for mana upgrades work incorrectly
- Game breaks after incrementing too much, production registers 0.00
- Major bug 'undid' progress
- Randomly resetting after activating cult
- Cult ritual selection screen takes over cult tab
- Apple Watch app restarts phone game
- Scrolling effects on Fire screen
- Red Xs in latest update
- Mana section disappeared in update
- Typo in Apple Watch glance
Requested features
13 requests- Fix cult/sacrifice bug
- Implement dark mode
- Improve tutorial
- Add more story elements
- More ritual card choices
Show 8 moreShow fewer
- Fix sound muting
- Add countdowns for upgrades
- More cult functionality
- Fix overflow error
- Improve UI navigation
- Add day mode
- Fix rounding costs
- Update app icon
SoundEcho
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Invisible Dragons
No in-app purchases
SoundEcho
- Purchasing the app$4.49
Questions
Is Invisible Dragons free?
Is SoundEcho free?
Which has better reviews, Invisible Dragons or SoundEcho?
Do Invisible Dragons or SoundEcho have ads?
Which is updated more often, Invisible Dragons or SoundEcho?
Other comparisons
