PDF Diro
by CHINA DAYANG INTERNATIONAL TRADING CO., LIMITED
- Reference
- Free
- Small & simple · 79
- Rating
- 5.0
- 5 ratings · US storefront
- Top 98%among 102 Reference apps
- Last update
- Mar 11, 2026
- Version 1.0.4
- Size
- 46 MB
- Category
- Reference
- Tracked since
- Oct 9, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
With PDF Diro, you get a powerful, user-friendly tool that combines functionality and creativity.
1.Text-to-PDF: Convert any text document into a polished PDF instantly. Perfect for essays, reports, or contracts – keep your work professional and shareable.
2.Image-to-PDF: Turn photos or scanned images into high-quality PDFs. Ideal for archiving receipts, notes, or sketches with just a few taps.
3.Audiobook Feature: Listen to novels come alive. Enjoy your favorite stories anywhere, anytime with our immersive audio experience.
4.Diary Feature: Beyond PDFs, PDF Diro lets you journal your thoughts, ideas, and memories in a digital diary. Organize your life alongside your documents, all in one app.
Simplify your tasks, stay organized, and make every moment count. Download PDF Diro today and experience the future of PDF management!
What’s new
Release notes for the latest version, as written by the developer.
1. Optimize the UI and creation process of the diary.
2. Fixed some of the issues found in the tests.
Rank history
Daily position in the Germany charts. #1 is at the top.
- Best rank
- #54
- Current rank
- #66
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
79/100
Small & simple
- Developer size70% · 25
Developer: 2 apps on the charts
- Audience size100% · 20
Ratings: 5
- App size100% · 10
Size: 46 MB
- Price model10% · 15
Price model: free
- Demand proof100% · 30
Best rank #1, 174 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 1.0.4LatestReleased Mar 11, 2026