Comparison

Megapixels Resolution Calc vs BetterCallGuard

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

Head to head
About

Megapixels Resolution Calc

Features
Read full description

How many pixels in a 12 megapixels image? How does that compare to difference aspect ratio? What is the resolution of Digital Cinema with 21:9 aspect ratio? How many megapixels by giving X width and Y height by image? How about the aspect ratio? The answer is here! This is a megapixel-resolution calculator, a tool to calculate and convert the graphical resolution base on 4 different aspect ratios 4:3 (SD), 16:9 (HD/fHD/4K), 21:9 (cinema) and 1:1. This tool also calculates and convert graphical resolution to megapixels. The output will include 4 different aspect ratios 4:3 (SD), 16:9 (HD/fHD/4K), 21:9 (cinema) and 1:1 if the ratio match one of these. Preview box will give you an impression for resolution input. 21:9, 16:9 and 4:3 is the ratio of x:y or width:height of the image sensor or output image/video format. Older digital cameras/camcorders aspect ratio is usually 4:3 (SD). However newer digital cameras/camcorders aspect ratio is 16:9 (HD/fHD/4K). Video cameras such as camcorders can be either 4:3 (SD) or 16:9 (HD/fHD/4K). Some camcorders (video and digital) can do both 4:3 (SD) and 16:9 (HD/fHD/4K). Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

About

BetterCallGuard

Block unwanted promotional and spam calls efficiently. This app uses smart algorithms to block calls in bulk by number segments without tracking your private data, ensuring your privacy and peace of mind.

Highlights
  • Block promotional/spam calls
  • Bulk blocking by number segments
  • Whitelist specific numbers
  • iCloud synchronization
  • User data and privacy security
Read full description

Tired of unwanted promotional calls? Concerned about other call-blocking apps invading your privacy? “BetterCallGuard” puts an end to endless telemarketing interruptions. With its powerful smart algorithms, it can block promotional calls in bulk without tracking or using any of your private data. Restore peace to your phone and bring calm back to your life. Key Features: • Block promotional/spam calls individually or in bulk by entire number segments. • Whitelist to allow specific numbers to bypass blocking. • iCloud synchronization across multiple devices. • Ensures user data and privacy security, with no storage, tagging, or tracking of any sensitive data—use with confidence.

Screenshots

Megapixels Resolution Calc4 screens
BetterCallGuard4 screens

Verdict

The call

The clearest difference is update cadence: BetterCallGuard at every 6 weeks against Megapixels Resolution Calc's every 38 months. BetterCallGuard also leads on price ($0.99 vs $2.99). On ads, 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

Megapixels Resolution Calc costs $2.99 and BetterCallGuard $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Megapixels Resolution Calc ships an update every 38 months, BetterCallGuard every 6 weeks. Both last shipped on October 9, 2026.

Scorecard2 real differences · 8 level
Megapixels Resolution Calc versus BetterCallGuard: the parameters behind the verdict, then further details
ParameterMegapixels Resolution CalcBetterCallGuard
Price$2.99$0.99 — better
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 38 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13 — better14
Further details — not scored
Size1 MB24 MB
Age rating4+4+
DeveloperHeng Jia LiangQingdao Chuyan Technology Co., Ltd

In-app purchases

None

Megapixels Resolution Calc

No in-app purchases

None

BetterCallGuard

No in-app purchases

Questions

Is Megapixels Resolution Calc free?
Megapixels Resolution Calc costs $2.99, with no in-app purchases.
Is BetterCallGuard free?
BetterCallGuard costs $0.99, with no in-app purchases.
Do Megapixels Resolution Calc or BetterCallGuard have ads?
Neither Megapixels Resolution Calc nor BetterCallGuard shows ads.
Which is updated more often, Megapixels Resolution Calc or BetterCallGuard?
Megapixels Resolution Calc ships an update every 38 months, and BetterCallGuard every 6 weeks. Most recently, Megapixels Resolution Calc was updated on October 9, 2026 and BetterCallGuard on October 9, 2026.

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