Comparison

Signal Lost vs SONAR Deep Dive

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Signal Lost

A narrative survival game where you listen to a radio to make choices. Decipher broadcasts to find allies and uncover the truth behind a global event. Your decisions have lasting consequences.

Highlights
  • Real-time narrative pacing
  • 13 distinct characters
  • Branching narrative choices
  • In-game journal
  • AI-generated live responses
  • Hidden mechanics
Features
Read full description

A narrative radio survival game. Atmospheric. Quiet. The threat is what you do with what you hear. Something happened. The grid is mostly dark. You're alone at Station Kilo. The shortwave still works. Most of the band is static. Occasionally, somewhere between 34.1 and 112.7 MHz, a voice cuts through. Elias, alone on a property northeast. June, holed up south of him, watching his generator light. A government broadcast on 91.1. A radio DJ still talking into the dark. A coordinator offering a slot at a place called Cedar Ridge. Some of them will help you. Some of them are lying. One of them knows what really happened. WHAT IT IS • A real-time narrative game paced like a real radio. Responses can take minutes or hours. The notification will reach you. • 13 distinct characters across 11 frequencies, plus a hidden hijack mechanic on 88.1 if you figure out how it works. • Every choice ripples. Sharing HAVEN coordinates with June pulls Marcus into the world. Helping Elias bleed the fuel line unlocks the path to 88.1. Betraying anyone to the coordinator severs everyone. • A journal that fills itself as you uncover things. • Twenty hidden side stories on the dark frequencies. Type whatever you want to say: your words decide how each one ends, and every playthrough tunes in a different one. • Game Center achievements, and a shareable card when your station finally goes dark. WHAT IT ISN'T • A chat app. You will not reply in real-time. Signals are sparse on purpose. • An action game. Nobody's coming for you. The threat is what you decide to do with what you hear. • A game you can rush. You can play in 5-minute windows over a week. That's the design. ACCESSIBLE BY DESIGN Signal Lost works with VoiceOver. Every screen is labeled, and the tuning dial is an adjustable control you can sweep with a swipe or jump between marked frequencies. The station's text follows your Dynamic Type size. Free. No ads. The whole story is free. If the station keeps you company, there's an optional "Support the Station" tip jar in Settings. Any tip unlocks amber and white phosphor colors as a thank-you. Built by one person. Headphones recommended.

About

SONAR Deep Dive

Features
Read full description

SONAR: Deep Dive is a premium, atmospheric Survival Horror game. Navigate a pitch-black abyss using only echolocation, avoid smart predators that hunt by sound, collect energy orbs, and find the portal to survive.

Screenshots

Signal Lost4 screens
SONAR Deep Dive3 screens

Verdict

The call

The clearest difference is in-app purchases: SONAR Deep Dive at none against Signal Lost's 3. SONAR Deep Dive also leads on update cadence (every 2 days vs every 2 weeks) and iOS requirement (13.0 vs 17.0). Signal Lost's advantage is ads (none vs shown). On price and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Signal Lost sells 3 one-off in-app purchases. SONAR Deep Dive asks for nothing beyond the download.

UpkeepUpdate frequency

Signal Lost ships an update every 2 weeks, SONAR Deep Dive every 2 days. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
Signal Lost versus SONAR Deep Dive: the parameters behind the verdict, then further details
ParameterSignal LostSONAR Deep Dive
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 weeksEvery 2 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size2 MB145 MB
Age rating12+4+
DeveloperThomas Masters博 郑

In-app purchases

3 purchases

Signal Lost

One-time3
  • A Cup of Coffee$0.99
  • A Fresh Battery$2.99
  • A New Antenna$4.99
None

SONAR Deep Dive

No in-app purchases

Questions

Is Signal Lost free?
Signal Lost is free to download, with in-app purchases available.
Is SONAR Deep Dive free?
SONAR Deep Dive is free to download, with no in-app purchases.
Do Signal Lost or SONAR Deep Dive have ads?
SONAR Deep Dive shows ads; Signal Lost does not.
Which is updated more often, Signal Lost or SONAR Deep Dive?
Signal Lost ships an update every 2 weeks, and SONAR Deep Dive every 2 days. Most recently, Signal Lost was updated on November 10, 2026 and SONAR Deep Dive on November 6, 2026.

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