Comparison

Local Scale Factor vs Unzip

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

Head to head
About

Local Scale Factor

This tool calculates local scale factors and Cartesian coordinates from WGS84 GPS positions. It supports numerous local grid transformations and can convert between local postcodes and geodetic positions. It also offers map navigation to selected coordinates.

Highlights
  • Local scale factor calculation
  • Cartesian coordinate conversion
  • WGS84 GPS position input
  • Local grid transformations
  • Postcode to geodetic position conversion
  • Map navigation
Features
Read full description

For professional surveyors and geodesists who need to know the local scale factor and Cartesian coordinates based on WGS84 GPS positions Hundreds of local grid transformations built in. A full list of available transformations can be found at https://www.nrgsurveys.co.uk/wp-content/uploads/transformations.txt Converts latitude and longitude using local ellipsoid parameters and Helmert 7 step transformations As a bonus it converts local postcodes to geodetic positions and vice versa Open Maps navigation to the selected coordinates (If available)

About

Unzip

Features
Read full description

Easily manage and extract compressed files on your iPhone or iPad with our app. Whether you’re dealing with zip, rar, 7z, or other archive formats, this app makes file decompression fast, simple, and secure. Key Features: - One-Tap Extraction Quickly open and extract ZIP, RAR, 7Z, TAR, GZ, BZ2, ISO, and more formats. - Archive Management View, rename, delete, and organize your extracted files within the app. - Create Archives Compress multiple files or folders into a new ZIP archive and share it easily. - File Preview Instantly preview documents, images, audio, video, and more without leaving the app. - File Security Open password-protected ZIP and RAR files securely. - Offline Access Use the app without an internet connection β€” your files remain fully accessible. Perfect For: - Professionals handling large file packages - Students downloading course materials - Anyone who needs fast access to compressed files on mobile The app also includes paid subscriptions, which can be canceled at any time. Privacy Policy: https://doc-hosting.flycricket.io/zip-rar-extractor-privacy-policy/6cd4e892-9c0b-496b-8ec3-d486cfa957d9/privacy Terms of use: https://doc-hosting.flycricket.io/zip-rar-extractor-terms-of-use/18b04ad0-ebb6-4078-8bde-169f611b583a/terms

Screenshots

Local Scale Factor4 screens
Unzip4 screens

Verdict

The call

The clearest difference is in-app purchases: Local Scale Factor at none against Unzip's 3. Local Scale Factor also leads on device support (3 vs 1) and iOS requirement (10.3 vs 17.0). Unzip's advantage is update cadence (every 4 days vs every 2 months). On price and ads there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Unzip sells 3 in-app purchases, starting at $4.99 per 7 days. Local Scale Factor asks for nothing beyond the download.

UpkeepUpdate frequency

Local Scale Factor ships an update every 2 months, Unzip every 4 days. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

Scorecard4 real differences Β· 4 level
Local Scale Factor versus Unzip: the parameters behind the verdict, then further details
ParameterLocal Scale FactorUnzip
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 2 monthsEvery 4 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
MonetizationFreeβ€”
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS10.3 β€” better17.0
Further details β€” not scored
Size65 MB56 MB
Age rating4+4+
DeveloperNRG Surveys LtdHype LLC

In-app purchases

None

Local Scale Factor

No in-app purchases

3 purchases

Unzip

Subscriptions3
  • Zip & Rar PRO (weekly)3 Days trial$4.997 Days
  • Zip & Rar PRO (monthly)3 Days trial$12.991 Month
  • Zip & Rar PRO (yearly)$49.991 Year

Questions

Is Local Scale Factor free?
Local Scale Factor is free to download, with no in-app purchases.
Is Unzip free?
Unzip is free to download, with in-app purchases available.
Do Local Scale Factor or Unzip have ads?
Neither Local Scale Factor nor Unzip shows ads.
Which is updated more often, Local Scale Factor or Unzip?
Local Scale Factor ships an update every 2 months, and Unzip every 4 days. Most recently, Local Scale Factor was updated on October 19, 2026 and Unzip on October 25, 2026.

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