タップ診断 vs Synapse
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
タップ診断
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Check touch response in seconds
Synapse
Assess the hardware functionality of a device before buying or selling. It performs comprehensive on-device checks for cameras, sensors, connectivity, and more, generating a shareable certificate of its condition. This ensures transparency and confidence in transactions.
- On-device hardware testing
- Comprehensive sensor checks
- Shareable pass/fail certificate
- No account or data sharing
- Quick free check available
- Full diagnostic for purchase
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Buying or selling a used iPhone? Know what works before money changes hands. Synapse helps you test key iPhone hardware — including cameras, speakers, microphones, sensors, buttons, connectivity, and biometrics — then creates a clear pass/fail device report you can share with a buyer, seller, repair shop, or resale listing. QUICK CHECK — FREE Run a basic test in minutes. No purchase required. Tests include: • Display • Touchscreen • Rear camera • Wi-Fi • Bluetooth FULL DIAGNOSTIC Unlock the complete hardware test suite and generate a shareable device report. Full Diagnostic includes: • Front camera and flashlight • Video recording • Microphones and speakers • Proximity sensor • Motion sensors • Screen rotation • Face ID or Touch ID sensor check • Vibration motor • Volume, lock, and mute buttons • GPS / location accuracy • System integrity indicators • Shareable pass/fail report with device details DEVICE CHECKS Purchase Device Checks in the app and save them to your account. Available options: • Single Device Check • 3 Device Checks • 10 Device Checks Sign in with Apple or email to save your purchased Device Checks, view your remaining checks, and use them on this device or another signed-in device. KEY FEATURES • Free Quick Check • Full Diagnostic hardware testing • Shareable pass/fail device report • Device Checks saved to your account • View remaining Device Checks in your Profile • Useful for buying, selling, repairing, or verifying a used iPhone PRIVACY Synapse runs hardware tests on your device. Your account is used to save purchased Device Checks and help you access them across signed-in devices. Permissions may be requested for camera, microphone, location during GPS testing, motion sensors, Bluetooth, Face ID / Touch ID checks, and local network features when needed. Apple, iPhone, Face ID, and Touch ID are trademarks of Apple Inc.
Screenshots
Verdict
The clearest difference is in-app purchases: タップ診断 at none against Synapse's 3. Synapse's advantage is ads (none vs shown). On price, 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
Both are free to download. Synapse sells 3 one-off in-app purchases. タップ診断 asks for nothing beyond the download.
| Parameter | タップ診断 | Synapse |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (10 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 10 — better |
| Update frequency | — | Every 6 days |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | 株式会社MK.musica | Nexus Link LLC |
In-app purchases
タップ診断
No in-app purchases
Synapse
- Full Diagnostic$2.99
- 3 Checks — Best Value$4.99
- 10 Checks — Pro Pack$9.99









