iSHORT vs DeDuplicate
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iSHORT
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iSHORT is an iPad application designed to collect habitability observations (including text, photos, video, and audio recordings) from research study participants. Observations can be retrieved using an optional sync server, or directly through iTunes/iPad File sharing. See the "About iSHORT" page (from the gear icon on the New Observation screen) for more information on configuring and using iSHORT. This app was developed by NASA Johnson Space Center's Human Research Program - Human Factors and Behavioral Performance Element.
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.
- 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
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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!
Screenshots
Verdict
The clearest difference is price: iSHORT at Free against DeDuplicate's $7.99. iSHORT also leads on in-app purchases (none vs 2) and iOS requirement (9.0 vs 15.0). DeDuplicate's advantage is device support (4 vs 1). On ads 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
iSHORT is free to download; DeDuplicate costs $7.99 up front. DeDuplicate sells 2 one-off in-app purchases. iSHORT asks for nothing beyond the download.
| Parameter | iSHORT | DeDuplicate |
|---|---|---|
| Price | Free — better | $7.99 |
| Rating | — | 4.5 (129 ratings) — better |
| Positive reviews | — | 48.0% of reviews |
| Number of ratings | — | 129 — better |
| Update frequency | — | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 10 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | NASA | Paolo Pugliese |
In-app purchases
iSHORT
No in-app purchases
DeDuplicate
- Buy me a coffee$0.99
- No Ads - Lifetime$7.99









