# SIGNAL: Merge Protocol — A merge mystery in deep space > A merge mystery in deep space (iPhone/iPad app by Yung Keet Lee.) - Source: https://appshunter.io/ios/app/signal-merge-protocol/id6764376434 (this page in markdown: same URL + `.md`) - Developer: [Yung Keet Lee](https://appshunter.io/developer/1892242673) - Category: Games, Adventure, Puzzle - Price: Free with in-app purchases - Age rating: 9+ - Requires: iOS 16.0 · 120 MB - Languages: American English - Released: 2026-07-29 - Data updated: 2026-08-28 - User reviews in markdown: https://appshunter.io/ios/app/signal-merge-protocol/id6764376434/reviews.md ## What is SIGNAL? A distress call. A dead research station. One survivor who won't give up. Deep in space, the station has gone dark — its crew missing, its systems failing. You answer the signal alongside Freya, and the only way to bring the station back to life is to MERGE. Combine items on the grid to craft better ones, restore each module of the station, and power the mystery back online piece by piece. Every merge pushes the story forward. — MERGE TO REVIVE — • Drag and combine items to evolve them through satisfying chains • Repair the station module by module: comms, command, engineering, life support, the power core and more • Unlock deeper sections and discover new item chains as you go — A STORY WORTH UNCOVERING — • A voiced, cinematic sci-fi mystery told across multiple chapters • Piece together what really happened to the crew of the station • Every module you restore reveals another fragment of the truth — BUILT TO RELAX — • Solve at your own pace — no timers on the puzzles • Moody, atmospheric sci-fi art and sound • Play in short bursts or lose yourself for hours — FREE TO PLAY — • Enjoy the full story for free • Optional in-app purchases to speed up your progress — never required to finish Answer the signal. Restore Helix-7. Uncover the truth. ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 10 Cores | $0.99 | one-time | | 60 Cores | $4.99 | one-time | | Starter Pack: 20 Cores | $0.99 | one-time | | 150 Cores | $8.99 | one-time | | Daily Deal: 15 Cores | $0.99 | one-time | | Daily Deal: 22 Cores + Refill | $1.99 | one-time | | Daily Deal: 78 Cores | $4.99 | one-time | ## Version history (last 5 releases) ### 1.0.6 — 2026-08-19 • Fixed an issue where withdrawing an item from Cargo could make it disappear if a duplicate item was vanishing at the same moment • Stability improvements ### 1.0.5 — 2026-08-14 • Fixed a rare bug that could clear your grid items after advancing to a new area — your board now stays intact • Cooldown timers now show hours, minutes, and seconds for clearer wait times • Screen stays awake during cinematics • Fixed quest descriptions running off-screen • Fixed late-game chest drop rates and a missing item in the Flux Shop • Overall balancing and stability improvements ### 1.0.4 — 2026-08-07 What's New in v1.0.4: • Overall game balancing adjustments • Fixed text overflow on quest descriptions • Fixed chest drop rates for late-game chapters • Fixed missing items in the Flux Shop • Screen now stays awake during cinematics ### 1.0.3 — 2026-08-04 This update fixes a timer sync issue, improves overall game balance, and includes various bug fixes. Thanks for playing SIGNAL! ### 1.0.2 — 2026-08-03 Fixes: the optional "watch an ad" rewards now work correctly on iOS, and music & sound no longer cut out after an ad. Thanks for playing SIGNAL! ## More apps by Yung Keet Lee - [Word Adventure - Spell & Learn](https://appshunter.io/ios/app/word-adventure-spell-and-learn/id6761965874) All apps by Yung Keet Lee: https://appshunter.io/developer/1892242673 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*