Device Tracker vs Sudoku Solver
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Device Tracker
Locate misplaced Bluetooth devices like headphones, smartwatches, and phones. This app uses a smart radar and last seen location features to help you find your items quickly, preventing costly replacements.
- Smart Device Radar
- Last Seen Location Map
- Earbud Finder
- Play Sound Feature
- Supports AirPods, Beats, Bose
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Easily find your lost Bluetooth devices like AirPods, iPhones, Apple Watches, Beats, Bose headphones, Powerbeats Pro, and more. Similar to an AirTag, our app helps you avoid costly replacements by quickly locating misplaced items at home, work, or on the go. Perfect for recovering devices for you or your family. Features: Smart Device Radar: Detect nearby Bluetooth devices and follow the signal strength to pinpoint their location. Last Seen Location: Check where your device was last connected and see it on an interactive map with timestamp details. Earbud Finder: Designed for AirPods, Beats, and Bose headphones to help you quickly locate lost earbuds. Play Sound: Make supported devices emit a sound for quick and easy tracking. Subscription Information: Weekly Subscription: $5.99/week Monthly Subscription: $14.99/month Annual Subscription: $29.99/year Payment is charged to your Apple ID account upon purchase confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Renewal charges occur within 24 hours before the current subscription period concludes. Manage and cancel subscriptions anytime in your App Store account settings. Privacy Policy - https://docs.google.com/document/d/18O3VZqOXndfDoyfBUMABlW88kR1WCOr1BJdVe5_Gjxg/edit?usp=drive_link Terms Of Use - https://docs.google.com/document/d/1MyyAwoZH0MxfyjoK-jL98p8wCW_lDuufeuArHwnfu7k/edit?usp=drive_link
Sudoku Solver
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The only scanner that solves a Samurai. Point your camera at a printed Sudoku and get the solution. Not just the standard 9×9 — Sudoku Solver reads the five-grid Samurai too, the one no other scanner will touch. HOW IT WORKS Hold your phone over the puzzle. It finds the grid, reads the digits, and works out the answer — usually in about a second. Nothing to type in, nothing to line up. IT TELLS YOU HOW, NOT JUST WHAT Every solution names the techniques the puzzle actually needed — naked singles, hidden pairs, X-Wings — so you can see where you were stuck. Want to work through it properly? One tap opens the exact board in Samuraiku and walks you through it step by step. SHARE THE ANSWER Send or print a clean solution card with the original clues in bold, so you can check your own work against it. WHAT IT DOESN'T DO No ads. No subscription. No account. Nothing is uploaded — the camera image never leaves your phone, and it's never saved to your photo library. You pay once. Classic 9×9 and Samurai. Works offline. Made by the people behind Samuraiku.
Screenshots
Verdict
The clearest difference is price: Device Tracker at Free against Sudoku Solver's $3.99. Device Tracker also leads on update cadence (fortnightly vs every 2 months). Sudoku Solver's advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement 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
Device Tracker is free to download; Sudoku Solver costs $3.99 up front. Device Tracker sells 4 in-app purchases, starting at $6.99 per 7 days. Sudoku Solver asks for nothing beyond the download.
Device Tracker ships an update fortnightly, Sudoku Solver every 2 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | Device Tracker | Sudoku Solver |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.1 (45 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 45 — better | — |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17 | 17.0 |
| Further details — not scored | ||
| Size | 28 MB | 2 MB |
| Age rating | 4+ | +4 |
| Developer | Anand Poray | Karl Groethe |
In-app purchases
Device Tracker
- Get Full Access3 Days trial$6.997 Days
- Get Full Access$6.997 Days
- Get Full Access3 Days trial$14.991 Month
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- Get Full Access3 Days trial$29.991 Year
Sudoku Solver
No in-app purchases
Questions
Is Device Tracker free?
Is Sudoku Solver free?
Do Device Tracker or Sudoku Solver have ads?
Which is updated more often, Device Tracker or Sudoku Solver?
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