Letter Rooms vs Aether Echo
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Letter Rooms
A simple yet challenging word puzzle game where you rearrange letters to form answers based on hints. It offers over 390 diverse puzzles across various topics, with a special mode for kids and collaborative multiplayer options.
- Over 390 puzzles
- 12 different topics
- Kids mode
- Collaborative Multiplayer via SharePlay
- Accessibility features
- Widget and GameCenter support
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+ Apple Design Award Finalist 2022! + Letter Rooms is wonderfully simple word game. Each puzzle shows you a hint and a set of letters to create the desired answer. Initially you have to rearrange the letters, but later you'll have to master on-off and mutli-letters to succeed. The over 390 different puzzles will challenge your knowledge of things like animals, pop culture, sports or food! But don't despair if you don't know the answer - you can skip any level without consequences. Features: - Solve over 390 puzzles from 12 different topics, like animals, pop culture, sports, or culinary - Kids mode with 180 puzzles made for kids from age 9-11 - Collaborative Multiplayer via SharePlay - Accessibility features like the dyslexic font and support for VoiceOver and VoiceControl. - Plus: Widget, GameCenter, ... What reviewers said about Letter Rooms: CultOfMac: "Letter Rooms is a canstfiat jumbled-word game for iOS" 148Apps: "Letter Rooms is a tight and clever puzzle game that understands that less is more." MacStories Newsletter: "A simple anagram puzzle game with an elegant, playful design." Metro GameCentral: "Each level’s brevity makes it a pleasant diversion when you’ve got a few minutes to spare, which is just what you need from mobile entertainment" Hope you have fun with the game! If you have any suggestions or feedback, please reach out to me: - Twitter: https://twitter.com/klemensstrasser - Mail: support@strasser.app
Aether Echo
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Can you remember sounds without seeing anything? Aether Echo is a pure audio memory-matching game that challenges your ears, not your eyes. Sixteen tiles hide eight pairs of unique sounds — bird calls, ocean depths, city drones, classical instruments, and precise 3D-positioned tones. Tap to reveal, listen carefully, and match the pairs using only your memory. Every sound is placed in 3D space around you. With headphones, the difference between tiles feels real — sounds come from your left, right, above, below. This is spatial audio memory at its purest. FEATURES • 5 unique sound worlds — Nature, Cyber City, Deep Ocean, Classical, Spatial Training • All packs free — no paywalls, no level locks • 3D spatial audio using AVAudioEngine • Best score tracking per sound pack • CoreHaptics feedback on every interaction • Premium dark UI — designed for focus • 6 languages: English, 中文繁體, 中文简体, 日本語, 한국어, Español Remove Ads available as a one-time $0.99 purchase.
Screenshots
Verdict
The clearest difference is ads: Letter Rooms at none against Aether Echo's shown. Letter Rooms also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). Aether Echo's advantage is update cadence (every 2 days vs every 6 weeks). On price 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. Letter Rooms sells 1 one-off in-app purchase and Aether Echo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Letter Rooms ships an update every 6 weeks, Aether Echo every 2 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.
| Parameter | Letter Rooms | Aether Echo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (601 ratings) — better | — |
| Positive reviews | 69.8% of reviews | — |
| Number of ratings | 601 — better | — |
| Update frequency | Every 6 weeks | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 75 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Klemens Strasser | Sui Fai Law |
Bugs and requests
Letter Rooms
Reported bugs
5 issues- App crashes on startup (iPhone 13 mini with latest iOS)
- Level progression loops back to earlier levels unexpectedly
- VoiceOver interaction quirks with letter dragging
- Occasional typos and incorrect clues
- Letter positioning issues when double-tapping after dragging
Requested features
8 requests- More free levels available without paywall
- Hint system for difficult clues
- Harder difficulty levels for advanced players
- Support for additional languages (Swedish, Finnish, etc.)
- Ability to return to previously skipped levels
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- Math-related puzzles with fractions and decimals
- Spelling out of clues for better accessibility
- More content and levels overall
Aether Echo
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Letter Rooms
- All Puzzles$2.99
Aether Echo
- Remove Ads$0.99









