# One Ping: Sonar Logic Puzzle — Daily submarine deduction

> Daily submarine deduction (iPhone/iPad app by Jaroslaw Karas.)

- Source: https://appshunter.io/ios/app/one-ping-sonar-logic-puzzle/id6789894764 (this page in markdown: same URL + `.md`)
- Developer: [Jaroslaw Karas](https://appshunter.io/developer/1873177164)
- Category: Games, Board, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 23 MB
- Languages: American English, Polish
- Released: 2026-07-21
- Data updated: 2026-07-26
- User reviews in markdown: https://appshunter.io/ios/app/one-ping-sonar-logic-puzzle/id6789894764/reviews.md

## What is One Ping?

You are the sonar operator. Somewhere under the grid, silent contacts are hiding.

Every digit on the board is a hydrophone: it reports the exact distance to the NEAREST contact — counted in cells, no diagonals. Cross-reference the readings, rule out impossible waters, and place your fixes. When every sensor confirms, fire the solution and watch the torpedoes run.

ONE PING A DAY
A single daily patrol, the same board for everyone. Keep your streak alive and see how deep your run takes you — and how you rank against every other operator who dived today.

PATROL I — THE CAMPAIGN
150 hand-verified missions across three depth zones: the Shallows, the Trench and the Abyss. Two to five contacts per board, a rhythm that keeps you guessing, and every tenth mission a FLAGSHIP hunt on a big 8×8 grid — five bearings, one implosion you will not forget. One purchase, no ads, yours forever.

PURE DEDUCTION
Every board has exactly one solution and never needs guessing. Fewer moves, better rank: a clean fix with no wasted marks is the mark of a true operator.

Dive. Listen. Deduce. One ping only.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| PATROL I | $4.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-07-21

No release notes.

## More apps by Jaroslaw Karas

- [MeshCoreScanner](https://appshunter.io/ios/app/meshcorescanner/id6761951768)
- [Idle Stories](https://appshunter.io/ios/app/idle-stories/id6782443680)

All apps by Jaroslaw Karas: https://appshunter.io/developer/1873177164

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*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 2026-07-26.*