Tether vs Nexgen Diagnostic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tether
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Tether makes it effortless to send photos, videos, documents, and any other files across all your devices. No cables, no complicated workflows, and no more emailing yourself files. Just sign in, link your devices, and transfer instantly with a private, encrypted, peer-to-peer connection. Whether you’re moving files between your phone and laptop or sharing media across different platforms, Tether keeps everything fast, simple, and secure. • Cross-platform by design Works seamlessly across iOS, Android, macOS, Windows, and Linux devices. • True peer-to-peer transfers Tether helps your devices connect to each other, but every file is sent directly between them. Your files never touch our or any other third party server. • End-to-end encrypted Every transfer is protected with strong encryption, so only your devices can access your files. • Original quality, no limits Send any number of files, any size, always without compression. • Your devices, connected anywhere Signed-in devices on your account can send and receive files whether they’re on the same network or across the world. Built for privacy. Built for speed. Built for you. Tether keeps your files between your devices only, ensuring you’re always in control. Whether you’re transferring work documents, photos, or anything else, Tether makes secure cross-platform sharing easier than ever.
Nexgen Diagnostic
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Check your phone's true condition in minutes with NEX GEN Trade-In. A complete hardware diagnostic suite that tests every component and gives your device an overall condition score — perfect before selling, trading in, or buying a used phone. ■35+ guided tests • Display: dead pixels, color, multi-touch, burn-in, brightness • Performance: CPU / GPU / NPU benchmarks, RAM & storage checks • Front & rear cameras, flashlight, microphone, speakers, earphones • Volume buttons, power button, mute switch, vibration, fingerprint/face • Sensors: compass, gyroscope, accelerometer, proximity • Connectivity: Wi-Fi, real speed test, Bluetooth, GPS, SIM • Charging port, wireless charging, battery health, thermal ■Simple & fast Step-by-step flow with on-screen guidance — done in just 3–5 minutes. ■Clear results Get an overall condition score with a pass/fail breakdown, plus a QR code so a NEX GEN branch can instantly receive your device for trade-in. Know what your phone is really worth before you sell or trade.
Screenshots
Verdict
The clearest difference is iOS requirement: Tether at 13.4 against Nexgen Diagnostic's 15.5. On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Tether | Nexgen Diagnostic |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.4 — better | 15.5 |
| Further details — not scored | ||
| Size | 31 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | Lucien Kerssens | Jukkarin Nopparujjanathada |
In-app purchases
Tether
No in-app purchases
Nexgen Diagnostic
No in-app purchases
Questions
Is Tether free?
Is Nexgen Diagnostic free?
Do Tether or Nexgen Diagnostic have ads?
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