Comparison

DuctSizer vs TowerScope

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

Head to head
About

DuctSizer

This utility app provides a quick and accurate ductulator for calculating equivalent round and rectangular duct sizes. It supports both Imperial and SI units, offering a simple finger-slide interface for fast computations.

Highlights
  • Quick duct size calculations
  • Accurate results
  • Equivalent round and rectangular sizes
  • IP and SI unit support
  • Finger slide interface
Features
Read full description

The Duct Sizer is a productivity app developed by Nopparat Katkhaw. The app is a simplest and quickest ductulator. Perform quick calculation and accurate results. Use the finger slide for quick calculations. Shows equivalent round and rectangular duct sizes. Compatible with IP and SI units. We would very much like your feedback! Pleas contacts Facebook page: https://www.facebook.com/UP.Energy4You

About

TowerScope

Features
Read full description

TowerScope turns independent cellular observations into a map you can understand. Search cities, addresses and countries worldwide, explore 2G, 3G, 4G and 5G records, and inspect the information behind each result. EXPLORE THE NETWORK โ€ข Browse cellular records on a clear map โ€ข Search worldwide for a place or country โ€ข Filter by radio technology, carrier and point type โ€ข Switch between standard, hybrid and satellite maps โ€ข Inspect Cell ID, MCC/MNC, area code and coordinates โ€ข Review samples, dates, estimated range and quality โ€ข Open coordinates directly in Apple Maps โ€ข Optionally test latency, download, upload and ISP/ASN HONEST DATA, CLEAR LABELS A marker is not automatically a physical tower. It may represent a logical cell, sector, observation or estimated site. Labels, sample counts and dates help you judge each result. Coverage, recency and position quality vary by region. A missing result does not mean that no cell exists there. WORLDWIDE SELF-HOSTED DATA TowerScope retrieves records from its own backend. The worldwide dataset is based on OpenCellID observations. Possible frequency bands are catalog entries for a radio generation, not a promise about the exact band used by a cell. Source and license information is available in the app and privacy policy. ONE PURCHASE Unlock access with one lifetime in-app purchase. There is no recurring fee, advertising or TowerScope account. Purchases can be restored through Apple. The optional connection test transfers up to about 16 MB and describes your current internet connection, not a specific tower. TowerScope is an information tool, not a substitute for professional measurement equipment, carrier planning data or emergency services. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

DuctSizer4 screens
TowerScope4 screens

Verdict

The call

The clearest difference is price: TowerScope at Free against DuctSizer's $4.99. DuctSizer's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 17.0). On update cadence, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

TowerScope is free to download; DuctSizer costs $4.99 up front. TowerScope sells 1 one-off in-app purchase. DuctSizer asks for nothing beyond the download.

UpkeepUpdate frequency

DuctSizer ships an update every 4 days, TowerScope every 6 days. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

Scorecard3 real differences ยท 5 level
DuctSizer versus TowerScope: the parameters behind the verdict, then further details
ParameterDuctSizerTowerScope
Price$4.99Free โ€” better
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 4 days โ€” betterEvery 6 days
AdsNoNo
In-app purchasesNo โ€” betterYes
MonetizationPaidโ€”
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS12.0 โ€” better17.0
Further details โ€” not scored
Size57 MB17 MB
Age rating4+4+
DeveloperMulberrysoftSascha Koziellek

In-app purchases

None

DuctSizer

No in-app purchases

1 purchases

TowerScope

One-time1
  • TowerScope Lifetime$29.99

Questions

Is DuctSizer free?
DuctSizer costs $4.99, with no in-app purchases.
Is TowerScope free?
TowerScope is free to download, with in-app purchases available.
Do DuctSizer or TowerScope have ads?
Neither DuctSizer nor TowerScope shows ads.
Which is updated more often, DuctSizer or TowerScope?
DuctSizer ships an update every 4 days, and TowerScope every 6 days. Most recently, DuctSizer was updated on October 14, 2026 and TowerScope on October 15, 2026.

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