Comparison

Tether vs Nexgen Diagnostic

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

Head to head
About

Tether

Features
Read full description

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.

About

Nexgen Diagnostic

Features
Read full description

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

Tether4 screens
Nexgen Diagnostic4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 5 level
Tether versus Nexgen Diagnostic: the parameters behind the verdict, then further details
ParameterTetherNexgen Diagnostic
PriceFreeFree
Update frequency—Every 2 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.4 — better15.5
Further details — not scored
Size31 MB68 MB
Age rating4+4+
DeveloperLucien KerssensJukkarin Nopparujjanathada

In-app purchases

None

Tether

No in-app purchases

None

Nexgen Diagnostic

No in-app purchases

Questions

Is Tether free?
Tether is free to download, with no in-app purchases.
Is Nexgen Diagnostic free?
Nexgen Diagnostic is free to download, with no in-app purchases.
Do Tether or Nexgen Diagnostic have ads?
Neither Tether nor Nexgen Diagnostic shows ads.

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