Comparison

Tri vs The Document Converter

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

Head to head
About

Tri

This utility app provides the formula and value for calculating triangle properties. It's designed for quick access to mathematical formulas related to triangles.

Highlights
  • Triangle formula display
  • Value calculation
  • Quick access utility
  • Mathematical formulas
Features
Read full description

App to display a formula and value of a triangle.

About

The Document Converter

Effortlessly transform files into various document and image formats like PDF, DOCX, and JPG. Simply select your input, choose the desired output, and convert in seconds. Save, share, or open your converted files directly in other applications.

Highlights
  • Convert to PDF, DOCX, JPG, TXT, and more
  • Supports dozens of input formats
  • Save, share, or open converted files
  • In-app file browser
  • AirDrop support
  • Cloud and local conversion options
Features
Read full description

Easily convert your files to nearly any document format! 1. Select your input file 2. Choose your output format ( DOCX, PDF, JPG, TXT etc. ) 3. Convert! It will only take a few seconds. 4. Save your file, or open it in Office, Drive, Dropbox, etc! Here are the output formats you can choose from: DOC, DOCX, HTML, ODT, PDF, RTF, TXT, JPG, PNG, JPEG, PNG You can convert from dozens of input formats, here are some of the most popular formats we support converting from: • Documents: ABW, DJVY, DOC, DOCM, DOCX, DOT, DOTX, HTML, HWP, LWP, MD, ODT, PAGES, PDF, RST, RTF, SDW, TEXT, TXT, WPD, WPS, ZABW and more! • Ebooks: AZW, AZW3, AZW4, CBC, CBR, CBZ, CHM, EPUB, FB2, HTM, HTMLZ, LIT, LRF, MOBI, PDB, PML, PRC, RB, SNB, TCR, TXTZ and more! • Images: HEIC, JPG, JPEG, PNG, ICO, SVG, EPS, BMP, GIF, NEF, TIFF and more! • Spreadsheets: CSV, XLS, XLSX and more! • Presentations: PPT, PPTX, KEY, PDF and more! Save, Share or Open your converted files in your favorite apps immediately. Browse your previously converted files with our in-app file browser. You can even AirDrop your files right to your Mac or another device. Conversions usually take less than 15 seconds! Conversion is done on a secure cloud server, which makes conversion easier, faster and much more battery-friendly. You must have an internet connection to use this app. Files are immediately deleted from the server after conversion. While the files are immediately deleted after conversion or cancellation, you should be aware that by using this app, you agree that your files will be sent over to internet from the app to the conversion server. We've also recently added support for local conversions for many popular conversion types. These conversions don't require a server, and are usually done almost instantly! We are continuing to add support for more local conversions with each update. This app includes an optional auto-renewable subscription (Premium Pass): Premium Pass beings with a free trial period, then an auto-renewable monthly subscription when trial ends. Payment will be charged to your Apple account at confirmation of purchase and will automatically renew (at the duration/price selected) unless auto-renew is turned off at least 24 hrs before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your Apple Account Settings after purchase. Any unused portion of the free initial period will be forfeited when you purchase a subscription. Privacy Policy: https://float.support/the-document-converter/privacy Terms of Use: https://float.support/the-document-converter/terms

Screenshots

Tri4 screens
The Document Converter4 screens

Verdict

The call

The clearest difference is review sentiment: Tri at 100% against The Document Converter's 36%. Tri also leads on in-app purchases (none vs 5) and rating (5.0 vs 4.7). The Document Converter's advantage is ads (none vs shown) and ratings volume (5.9K vs 1). On price, 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

Both are free to download. The Document Converter sells 5 in-app purchases, starting at $2.99 per month. Tri asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Tri holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: The Document Converter has 5.9K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Tri's written reviews are positive against 36% of The Document Converter's.

UpkeepUpdate frequency

Tri ships an update every 12 months, The Document Converter every 5 months. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

Scorecard7 real differences · 3 level
Tri versus The Document Converter: the parameters behind the verdict, then further details
ParameterTriThe Document Converter
PriceFreeFree
Rating5.0 (1 ratings) — better4.7 (5.9K ratings)
Positive reviews100.0% of reviews — better36.2% of reviews
Number of ratings15.9K — better
Update frequencyEvery 12 monthsEvery 5 months — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFreemium
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.6
Further details — not scored
Size4 MB44 MB
Age rating4+4+
DeveloperThirdware.jpFloat Tech, LLC

Customer experience

Tri

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

The Document Converter

All ratings5,936 ratings
Positive92.3%
Neutral2.0%
Negative5.8%
Written reviews293 reviews
Positive36.2%
Neutral3.1%
Negative60.8%

Bugs and requests

Tri

Not enough reviews yet to summarise bugs or requests.

The Document Converter

Reported bugs

3 issues
  • Conversion process gets stuck or fails
  • Corrupted output files
  • Compatibility issues with newer iOS versions

Requested features

4 requests
  • Add support for more file formats
  • Improve file management and organization
  • Provide offline conversion capabilities
  • Introduce a more transparent pricing model

In-app purchases

None

Tri

No in-app purchases

5 purchases

The Document Converter

Subscriptions2
  • Premium Pass3 Days trial$2.991 Month
  • Premium Pass7 Days trial$3.491 Month
One-time3
  • Lifetime Pass$8.99
  • Lifetime Pass$19.99
  • Lifetime Pass Promo$29.99

Questions

Is Tri free?
Tri is free to download, with no in-app purchases.
Is The Document Converter free?
The Document Converter is free to download, with in-app purchases available.
Which has better reviews, Tri or The Document Converter?
Tri is rated higher. Tri averages 5.0 out of 5 from 1 ratings, while The Document Converter averages 4.7 from 5.9K ratings.
Do Tri or The Document Converter have ads?
Tri shows ads; The Document Converter does not.
Which is updated more often, Tri or The Document Converter?
Tri ships an update every 12 months, and The Document Converter every 5 months. Most recently, Tri was updated on October 3, 2026 and The Document Converter on October 12, 2026.

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