Comparison

PDFly vs Calculation Transformers

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

Head to head
About

PDFly

Features
Read full description

Manage your documents easily with PDFly, create PDFs, and summarize your official documents by scanning them! PDF CREATION • Quickly convert your photos to PDF • Combine multiple pages into a single PDF • Create searchable PDFs (OCR support) • Get high-quality output DOCUMENT SCANNER Scan your ID, driver's license, passport, and e-Government documents and instantly see important information: • Turkish Republic Identity Card - Name, surname, Turkish Republic ID number, date of birth • Driver's License - Class, validity date • Passport - Passport number, validity status • Social Security Service Statement - Total premium days • Student Transcript - Grade point average, ECTS • Population Registration Certificate - Summary of personal information READY-MADE TEMPLATES Create your official documents in minutes: • Petitions (general, permission, complaint) • Employment contracts • Rental agreements • Power of attorney documents • Minutes • Professional documents with signature support EASY SHARING • WhatsApp Quick sharing • WhatsApp Business support • Sending via Telegram • Sharing with all applications USER-FRIENDLY • Dark and light theme support • Turkish interface • Simple and modern design • Fast and fluid experience PDFly is designed to simplify your daily document processing. Whether you are a student, employee, or homeowner - one application for all your document needs! For questions or suggestions: bilgi@senkronix.com

About

Calculation Transformers

This electrical engineering tool simplifies complex transformer calculations for students and professionals. It offers fast, accurate results in an easy-to-understand format, aiding in design, maintenance, and analysis.

Highlights
  • Fast transformer calculations
  • Clear input structure
  • Accurate results
  • Design and troubleshooting aid
  • User-friendly interface
Features
Read full description

Calculation Transformers is a practical electrical engineering tool designed to help calculate important transformer parameters quickly and accurately. It is suitable for students, technicians, and professionals working with transformer design, maintenance, and analysis. The app simplifies complex electrical formulas and provides reliable outputs in an easy-to-understand format. With a clean interface and fast processing, it becomes a handy reference for daily engineering tasks. Key Features: Fast transformer-related calculations Clear and structured inputs Accurate and easy-to-read results Helpful for design and troubleshooting User-friendly interface Calculation Transformers supports efficient planning and understanding of transformer performance, making it a valuable companion for electrical work. in-app purchase included 
 Lifetime to unlock all calculation and remove ads Privacy Policy : https://docs.google.com/document/d/1Dn1gNdDP2AHL7sg-px4rxdLAcoGHlNB8/edit#heading=h.1ionsc3v3xmq Terms and Condition : https://docs.google.com/document/d/1t-LREPKByKaM0UkbIo4o0E1gdAYs21Oe30EfGxenEss/edit?usp=sharing

Screenshots

PDFly4 screens
Calculation Transformers4 screens

Verdict

The call

The clearest difference is update cadence: PDFly at every 2 months against Calculation Transformers's every 5 months. Calculation Transformers's advantage is iOS requirement (13.0 vs 15.5). 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. PDFly sells 2 in-app purchases, starting at $2.99 per month and Calculation Transformers sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PDFly ships an update every 2 months, Calculation Transformers every 5 months. Both last shipped on October 31, 2026.

Scorecard2 real differences · 7 level
PDFly versus Calculation Transformers: the parameters behind the verdict, then further details
ParameterPDFlyCalculation Transformers
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.513.0 — better
Further details — not scored
Size85 MB56 MB
Age rating4+4+
DeveloperSenkronix KurumsalNanjibhai Gorasiya

In-app purchases

2 purchases

PDFly

Subscriptions2
  • PDFly Premium Monthly$2.991 Month
  • PDFly Premium Yearly$14.991 Year
1 purchases

Calculation Transformers

One-time1
  • Lifetime premium$9.99

Questions

Is PDFly free?
PDFly is free to download, with in-app purchases available.
Is Calculation Transformers free?
Calculation Transformers is free to download, with in-app purchases available.
Do PDFly or Calculation Transformers have ads?
Neither PDFly nor Calculation Transformers shows ads.
Which is updated more often, PDFly or Calculation Transformers?
PDFly ships an update every 2 months, and Calculation Transformers every 5 months. Most recently, PDFly was updated on October 31, 2026 and Calculation Transformers on October 31, 2026.

Other comparisons