Comparison

Thunder & Lightning vs Scannery

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

Head to head
About

Thunder & Lightning

Measure the distance to loud events like thunder, fireworks, or rocket launches by timing the visual and auditory cues. Adjust for temperature for greater accuracy and choose your preferred units. It also functions as a stopwatch, speed-of-sound calculator, and unit converter.

Highlights
  • Distance measurement to sound events
  • Temperature adjustment for accuracy
  • U.S./Imperial and metric units
  • Stopwatch functionality
  • Speed-of-sound calculator
  • Fahrenheit/Celsius converter
Features
Read full description

Thunder & Lightning has (barely) one practical purpose: to measure your distance to a sound source. It works for thunder and lightning, fireworks, rocket launches, or other loud events visible from a (hopefully safe) distance away. Just press the Lightning button when you see the event, and Thunder when you hear it. Modern technology does the rest. To perform this trivial task even more accurately, you can enter the temperature of your surroundings to more precisely calculate the speed of sound. You can also choose between U.S./Imperial and metric measurements depending on your personal unit preferences. Should its intended purpose be insufficiently useful, this application can also be used as a reasonably precise (if redundant) stopwatch, a speed-of-sound calculator, a Fahrenheit/Celsius converter, or as an odometer if you happen to be traveling at precisely the speed of sound. Note: Use of application while operating supersonic aircraft is not recommended or approved.

About

Scannery

Read full description

Scannerry is your all-in-one solution for seamless document management on the go. With a comprehensive suite of features, it empowers you to effortlessly handle all your document needs right from your mobile device. Key Features: 1. Scan Documents: Transform physical documents into digital format with just a few taps. Our advanced scanning technology ensures crystal-clear results every time. Organize, store, and share your scanned documents conveniently as PDFs. 2. Create PDFs from your photos with Extensive Editing: Craft polished PDFs from your images effortlessly. Whether it's capturing receipts, whiteboards, or sketches, Scannerry offers a plethora of editing tools to enhance your documents. 3. Scan Text: Need to extract text from images or documents? Scannerry has you covered. Our OCR (Optical Character Recognition) technology accurately converts scanned text into editable format, making it easy to search, copy, and edit. 4. Print Documents: Seamlessly print your documents directly from your device using compatible printers. Whether it's contracts, reports, or presentations, Scannerry ensures crisp and professional printouts every time. Why Choose Scannerry? Efficiency: Streamline your document workflows and save valuable time. Quality: Enjoy high-quality scans and PDFs with pristine clarity. Versatility: From scanning to editing to printing, Scannerry covers all your document needs. Accessibility: Access and manage your documents anytime, anywhere, right from your smartphone or tablet. Say goodbye to paperwork hassles and hello to efficiency with Scannerry. Download now and experience the ultimate document management convenience!

Screenshots

Thunder & Lightning2 screens
Scannery3 screens

Verdict

The call

The clearest difference is update cadence: Scannery at monthly against Thunder & Lightning's every 128 months. Thunder & Lightning's advantage is iOS requirement (8.0 vs 14.5). 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.

UpkeepUpdate frequency

Thunder & Lightning ships an update every 128 months, Scannery monthly. The most recent releases landed on August 24, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 8 level
Thunder & Lightning versus Scannery: the parameters behind the verdict, then further details
ParameterThunder & LightningScannery
PriceFreeFree
Rating4.9 (7 ratings) — better—
Positive reviews87.3% of reviews—
Number of ratings7 — better—
Update frequencyEvery 128 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS8.0 — better14.5
Further details — not scored
Size2 MB31 MB
Age rating4+4+
DeveloperBryan FiglerMaksim Lebedev

In-app purchases

None

Thunder & Lightning

No in-app purchases

None

Scannery

No in-app purchases

Questions

Is Thunder & Lightning free?
Thunder & Lightning is free to download, with no in-app purchases.
Is Scannery free?
Scannery is free to download, with no in-app purchases.
Do Thunder & Lightning or Scannery have ads?
Neither Thunder & Lightning nor Scannery shows ads.
Which is updated more often, Thunder & Lightning or Scannery?
Thunder & Lightning ships an update every 128 months, and Scannery monthly. Most recently, Thunder & Lightning was updated on August 24, 2026 and Scannery on September 10, 2026.

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