Comparison

DeDuplicate vs Well Testing Suite

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

Head to head
About

DeDuplicate

This app scans your cloud storage for identical files and allows you to remove duplicates, freeing up valuable space. It efficiently identifies exact duplicates using file hash values without downloading your files, ensuring privacy and speed.

Highlights
  • Scans cloud storage for duplicate files
  • Removes extra copies to free up space
  • Efficient and fast scanning
  • Accurate detection using file hash values
  • Privacy-first, local processing
  • Supports multiple cloud services
Features
Read full description

Google Drive, OneDrive, Dropbox, and other cloud services don’t offer built-in tools to find and remove duplicates. If you store many files in the cloud, it’s easy to lose control and waste space. Automatic mobile backups make this problem even worse. DeDuplicate scans your cloud storage, finds identical files, and lets you remove the extra copies to free up space. How it works: 1) Log into your account. 2) Choose one or more folders (or the entire drive) and start the scan. Scan time depends on the NUMBER of files, not their size. 3) Review the detected duplicates and optionally ignore some of them. 4) Confirm the operation. What makes DeDuplicate different: • Efficient and fast: files are NOT downloaded. DeDuplicate uses metadata provided by cloud services, so it saves bandwidth, requires no extra storage, and scans are very quick (e.g. ~100,000 files in under 10 minutes, depending on network speed). • Accurate detection: only EXACT duplicates are detected using file hash values. File names are ignored; contents must be identical. • Privacy-first: everything runs locally on your device. The app connects directly to cloud providers, with no intermediary servers and no file data collection. • Cross-platform support. DeDuplicate currently supports the following cloud services: (PERSONAL ACCOUNTS - see notes below!) • OneDrive • Dropbox • Google Drive (∗) • MEGA • Box • pCloud • Yandex.Disk IMPORTANT: DeDuplicate is designed and tested primarily with PERSONAL/CONSUMER ACCOUNTS. Business, school, or enterprise accounts may behave differently and are not fully supported yet. Improving support for those account types is planned for a future update! NOTES ABOUT GOOGLE DRIVE: - Due to recent changes in Google’s requirements for third-party apps, DeDuplicate currently does not have a “verified” status. You can still use Google Drive normally, but signing in requires a small workaround, which is explained step by step inside the app! - Google proprietary file types (such as Google Docs, Google Sheets, etc.) are treated specially by Google Drive and are NOT included in DeDuplicate’s scan. WHY DO YOU NEED THIS APP? Until now, the only practical way to remove duplicates from cloud storage was a very time-consuming workaround: downloading everything to your computer, using one of the many “offline” duplicate-file utilities, and then syncing the changes back to the cloud. In the worst-case scenario, this even means re-uploading everything from scratch. That’s hardly a viable option when you have over 500 GB of unorganized cat pictures :) DeDuplicate is actively developed. If you encounter any issues, please take the time to contact us!

About

Well Testing Suite

Features
Read full description

H2Oil Well Testing Suite is a comprehensive engineering calculator app designed for well test supervisors, field engineers, and operations teams working in oil and gas. Every calculation runs entirely on your device - no internet connection, no cloud, no subscriptions. Your data never leaves your phone. CALCULATORS INCLUDED Well Testing - AGA-3 Orifice Gas Metering (Reader-Harris/Gallagher, ISO 5167-2 / API MPMS 14.3.1) - Dual Choke Sizing (Thornhill-Craver / Economides, critical and subcritical) - Choke Flow Rates (gas, oil, multiphase) - Separator Retention Time (two and three-phase) - Bottoms Up Time / kill sheet calculations - Solution GOR (Standing 1947) - Oil and Gas Rate (surface and reservoir) - MCF and Shrinkage Flow Assurance - Well Test Simulator: full flow path from Wellhead to SSV, Choke, Heater, Separator, Flare, Surge Tank and Atmospheric Tank. Live pressure, temperature and velocity at every node. API RP 14E erosional velocity and hydrate risk at each segment. Flare and Radiation - API 521 Flare Radiation Analysis - Interactive 3D Flare Model with touch pan and pinch-to-zoom - Radiation exclusion zones mapped to API 521 Table 5 thresholds - 2D Radiation Contour Map Reservoir Engineering - Decline Curve Analysis: Arps, Duong, Stretched Exponential with P10/P50/P90 EUR Safety - PRV Sizing (API 520 Part I) REPORTING Every calculator exports a professional PDF report including your company logo, client logo, well and field details, engineer name, and full results. Reports save directly to the Files app via the iOS share sheet. PNG and CSV exports also available. DESIGNED FOR FIELD USE - Fully offline - no Wi-Fi or cell signal required on location - Dark theme optimised for outdoor readability - Large touch targets and haptic feedback - All data stored locally with iCloud-eligible backup WHO IS IT FOR Well test supervisors, petroleum engineers, production engineers, drilling engineers, HSE engineers, and operations personnel who need fast, reliable engineering calculations on location without a laptop. Developed by H2Oil Engineering - well testing and engineering services. Contact: software@h2oil.co.uk

Screenshots

DeDuplicate4 screens
Well Testing Suite4 screens

Verdict

The call

The clearest difference is price: Well Testing Suite at Free against DeDuplicate's $7.99. Well Testing Suite also leads on in-app purchases (none vs 2) and update cadence (every 5 days vs every 2 weeks). On ads, 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

Well Testing Suite is free to download; DeDuplicate costs $7.99 up front. DeDuplicate sells 2 one-off in-app purchases. Well Testing Suite asks for nothing beyond the download.

UpkeepUpdate frequency

DeDuplicate ships an update every 2 weeks, Well Testing Suite every 5 days. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

Scorecard3 real differences · 7 level
DeDuplicate versus Well Testing Suite: the parameters behind the verdict, then further details
ParameterDeDuplicateWell Testing Suite
Price$7.99Free — better
Rating4.5 (129 ratings) — better—
Positive reviews48.0% of reviews—
Number of ratings129 — better—
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size26 MB5 MB
Age rating4+4+
DeveloperPaolo PuglieseH2Oil Limited

In-app purchases

2 purchases

DeDuplicate

One-time2
  • Buy me a coffee$0.99
  • No Ads - Lifetime$7.99
None

Well Testing Suite

No in-app purchases

Questions

Is DeDuplicate free?
DeDuplicate costs $7.99, and also offers in-app purchases.
Is Well Testing Suite free?
Well Testing Suite is free to download, with no in-app purchases.
Do DeDuplicate or Well Testing Suite have ads?
Neither DeDuplicate nor Well Testing Suite shows ads.
Which is updated more often, DeDuplicate or Well Testing Suite?
DeDuplicate ships an update every 2 weeks, and Well Testing Suite every 5 days. Most recently, DeDuplicate was updated on October 14, 2026 and Well Testing Suite on October 2, 2026.

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