Comparison

Contact Backup vs Protractor Angle Measure App

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

Head to head
About

Contact Backup

Features
Read full description

Contacts Export is a lightweight and efficient iPhone contact manager supporting multiple export and import formats. Safe & Secure: Fully offline, no internet required. Your data never leaves your device. (Only needs internet connection for App Store purchases.) Features: - Export as VCF, CSV, XLSX, or PDF - Import contacts from VCF and CSV files - Upload via WiFi from your computer browser - Preview before exporting or importing - Share or print via the system menu - Send directly via email - Select specific contacts to process Supported Formats: - VCF (vCard) standard contact format, compatible with all phones - CSV spreadsheet format, editable with Excel and more - XLSX native Excel format with full styling - PDF portable document format, ideal for printing and archiving

About

Protractor Angle Measure App

This tool allows for instant and accurate angle measurements using a digital protractor, camera overlay, and ruler. It supports 180° and 360° measurements, ideal for students, engineers, builders, and DIYers for various projects.

Highlights
  • Accurate digital protractor
  • 180° & 360° measurement
  • Camera overlay for real-time angles
  • Ruler mode for line measurement
  • Angle lock and precision control
  • Simple, distraction-free interface
Features
Read full description

Protractor: Angle Finder is a clean, simple, and accurate tool for measuring angles instantly. Designed for students, engineers, builders, DIY enthusiasts, and anyone who needs fast, reliable measurements. Use the digital protractor, camera overlay, and ruler to measure 180° or 360° angles with precision. Rotate, align, and zoom objects easily for math, carpentry, or design projects. Key Features Accurate digital protractor – measure angles with confidence 180° & 360° measurement – perfect for any project Camera protractor – overlay angles in real time Ruler mode – measure straight lines Angle lock & precision control – avoid mistakes Simple, clean interface – distraction-free design Perfect for school, DIY, construction, or design Whether measuring angles on paper, screens, or objects through your camera, this app makes every measurement fast, accurate, and easy. Who Needs This App? Students learning geometry Engineers and architects DIY enthusiasts and hobbyists Builders and carpenters Designers and illustrators Subscription Details Savory All Access Monthly: $7.99 Yearly: $34.99 Auto-renews unless canceled Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.e-droid.net/privacy.php?ida=3820332&idl=en Download Now Measure angles in seconds with Protractor: Angle Finder – precise, reliable, and simple for every project.

Screenshots

Contact Backup3 screens
Protractor Angle Measure App4 screens

Verdict

The call

The clearest difference is in-app purchases: Contact Backup at none against Protractor Angle Measure App's 2. Contact Backup also leads on ads (none vs shown). Protractor Angle Measure App's advantage is update cadence (every 4 months vs every 40 months) and iOS requirement (13.0 vs 16). On price 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. Protractor Angle Measure App sells 2 in-app purchases, starting at $3.99 per month. Contact Backup asks for nothing beyond the download.

UpkeepUpdate frequency

Contact Backup ships an update every 40 months, Protractor Angle Measure App every 4 months. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

Scorecard4 real differences · 6 level
Contact Backup versus Protractor Angle Measure App: the parameters behind the verdict, then further details
ParameterContact BackupProtractor Angle Measure App
PriceFreeFree
Rating—2.3 (4 ratings) — better
Positive reviews—33.3% of reviews
Number of ratings—4 — better
Update frequencyEvery 40 monthsEvery 4 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1613.0 — better
Further details — not scored
Size1 MB57 MB
Age rating4+4+
DeveloperShanghai Dazhuo Information Technology Co., Ltd.Ebenezer Oteng

In-app purchases

None

Contact Backup

No in-app purchases

2 purchases

Protractor Angle Measure App

Subscriptions1
  • Premium Monthly$3.991 Month
One-time1
  • Lifetime access$9.99

Questions

Is Contact Backup free?
Contact Backup is free to download, with no in-app purchases.
Is Protractor Angle Measure App free?
Protractor Angle Measure App is free to download, with in-app purchases available.
Do Contact Backup or Protractor Angle Measure App have ads?
Protractor Angle Measure App shows ads; Contact Backup does not.
Which is updated more often, Contact Backup or Protractor Angle Measure App?
Contact Backup ships an update every 40 months, and Protractor Angle Measure App every 4 months. Most recently, Contact Backup was updated on November 3, 2026 and Protractor Angle Measure App on November 9, 2026.

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