Comparison

iChecker vs Nellin controllers

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

Head to head
About

iChecker

This app performs comprehensive hardware diagnostics on your iPhone, checking 39 critical components. It provides an overall health grade and detailed test results, helping you identify potential issues before they become costly repairs. Generate shareable reports and monitor your device's health over time with routine checks.

Highlights
  • 39 forensic hardware tests
  • Instant overall health grade
  • Screen and display checks
  • Internal sensor diagnostics
  • Connectivity testing
  • Weekly diagnostic streak reminders
  • Shareable PDF reports
Features
Read full description

Is your iPhone actually healthy — or is a silent failure waiting to cost you? iChecker runs 39 forensic-level diagnostic tests to expose hidden damage, dead pixels, and failing sensors before they become expensive repairs. Whether you're verifying a used iPhone before buying, confirming a screen repair was done correctly, or keeping your daily driver at peak performance — stop guessing. Start knowing. INSTANT DIAGNOSIS Tap once. Get an instant A+ to F overall health grade across every critical hardware system. No technical expertise required — just a clear, honest answer about your device's true condition. 39 FORENSIC HARDWARE TESTS • Screen & Display — multi-touch precision, dead pixel grid scan, brightness uniformity • Internal Sensors — Face ID, gyroscope, accelerometer, magnetometer, proximity sensor • Connectivity — Wi-Fi signal strength, Bluetooth, cellular routing, GPS accuracy • Hardware — front & rear microphones, all camera lenses, physical buttons, speakers DIAGNOSTIC STREAK — PREVENTATIVE CARE iChecker features the first-of-its-kind Weekly Streak system for iOS. Get intelligent reminders to run routine hardware checks. Monitor your iPhone's health over time and catch components showing early signs of failure — before a minor issue becomes a costly breakdown. SHAREABLE PDF REPORTS Generate a beautifully formatted, timestamped PDF proof report summarizing every passed and failed test. Share it instantly as undeniable evidence of your device's condition — essential for anyone buying or selling a used iPhone. WIDGETS & PREMIUM THEMES Monitor your weekly diagnostic streak directly from your home screen with sleek iOS widgets. Customize the full app interface with premium themes: Cyber Teal, Aurora Purple, Neon Indigo, and Classic Blue. All 39 tests run locally on your device. No cloud uploads. No account required. Your diagnostic data never leaves your iPhone. Privacy Policy: https://local-scan-shield.lovable.app Terms of use: https://www.apple.com/legal/internet-services/terms/site.html

About

Nellin controllers

Features
Read full description

Nellin lets you set up and monitor kiln firings from your phone. The app connects to your kiln controller over the local network and keeps the essential firing data on one screen. Track current and target temperature, program stage, and heating progress. Select firing programs, adjust controller settings, and receive alerts when a program finishes or the device needs attention. The app also includes maintenance guidance, reference information, and a library of useful firing profiles. Initial setup uses the controller's access point; afterward, the app discovers the device on your local network. Your phone and controller must be connected to the same local network for control. Available features may depend on the controller model and firmware version.

Screenshots

iChecker4 screens
Nellin controllers4 screens

Verdict

The call

The clearest difference is ads: Nellin controllers at none against iChecker's shown. Nellin controllers also leads on update cadence (daily vs every 11 days). On price, in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

iChecker ships an update every 11 days, Nellin controllers daily. The most recent releases landed on October 1, 2026 and October 12, 2026 respectively.

Scorecard2 real differences · 8 level
iChecker versus Nellin controllers: the parameters behind the verdict, then further details
ParameteriCheckerNellin controllers
PriceFreeFree
Rating5.0 (8 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 11 daysDaily — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone
Requires iOS16.0 — better16.4
Further details — not scored
Size30 MB38 MB
Age rating4+17+
DeveloperJignesh KikaniAleksandr Liashov

In-app purchases

None

iChecker

No in-app purchases

None

Nellin controllers

No in-app purchases

Questions

Is iChecker free?
iChecker is free to download, with no in-app purchases.
Is Nellin controllers free?
Nellin controllers is free to download, with no in-app purchases.
Do iChecker or Nellin controllers have ads?
iChecker shows ads; Nellin controllers does not.
Which is updated more often, iChecker or Nellin controllers?
iChecker ships an update every 11 days, and Nellin controllers daily. Most recently, iChecker was updated on October 1, 2026 and Nellin controllers on October 12, 2026.

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