Comparison

PaperCode vs WhiteStar StarDrop

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

Head to head
About

PaperCode

Organize your books and papers by assigning them to custom places and associating them with barcodes or QR codes. Quickly update an item's location by scanning its code. Automatically gather book information from databases by scanning ISBN barcodes.

Highlights
  • Manage items and places
  • Scan barcodes/QR codes
  • OCR for printed text
  • Automatic book information retrieval
  • Customizable place names
  • Quick item location updates
Features
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What you can do with this app: [The app remembers where your books/papers are.] *Manage ITEMS with PLACES where they belong to. -You can manage ITEMS and PLACES related to Barcodes/QR-codes by scanning codes or printed texts(OCR) using your phone's camera. -Only you need is minimum effort to add, update and search PLACES and ITEMS. -You can add and name any PLACES, such as "Bookshelf:A", "Box:B" and "Bed room closet". It is not necessary that PLACES are real physical places. They can be "Borrowed by John Doe", "Papers to copy", "Things to survey" and so on. -Though this app is designed for management of academic books and treatises(papers), you can also add and name any ITEMS. They can be "Golf shoes", "Water bottles for emergency", "Tax payment documents of 2019", "Buy salt", "Reserve restaurant" and so on. [Easier is better.] *Add, move, search, sometimes manage. With this app, you will: -Add(register) PLACES. Add(register) ITEMS and relate them to barcodes/QR-codes. -When you move an ITEM, scan a barcode/QR-code to update its PLACE to belong to. -Search an ITEM's name to find out its PLACE. -You can rename ITEMS and PLACES, update relationship between them and new codes, update their order in the lists at any time. [No automation, no life.] *ITEMS and PLACES cooperate with barcodes/QR-codes. -You can relate ITEMS and PLACES to any barcodes/QR-codes. -Once you created relationships between ITEMS/PLACES and codes, when you move an ITEM from current PLACE to another PLACE, all you have to do is: 1.Scan the code of the new PLACE using the camera, 2.Scan the code of the ITEM. That's it. It won't take more than 3 seconds. -The code will be scanned automatically when your camera focuses it. You don't even need to press the shutter button. -If the books or papers don't have barcodes/QR-codes, add codes to them. (for example, codes printed directly on the papers using handy printers or codes printed on sticker labels.) Any unique digits or characters will work. *Automatically collect information. -Information of books and papers (author, title, publisher, published date) will be collected automatically by searching with keyword(s). -This app accesses CiNii/CiNiiBooks database OpenSearch service on the web to get the information. -If you scan a barcode and the code is an ISBN, this app will collect and fill all necessary information automatically. All you need is to tap "OK" button. -You can search and find books or papers by using keyword(s). Use space for AND search and use slash for OR search. If multiple results hit, you can choose one to add as a new ITEM. -A particular chapter of a book can be added in the same way as a paper. *Relate ITEMS and PLACES to barcodes/QR-codes -Both ITEMS and PLACES can be related to barcode/QR-code. -You can delete or update(relate again) relationships between codes and ITEMS/PLACES. *Script(handwriting) recognition -If you can't use barcodes/QR-codes in some reason, you can try script(handwriting) recognition. It works, but it takes a lot of time and it won't recognize 100% correctly. So I strongly recommend you to use barcodes/QR-codes. [Nothing is more important than safety.] *Backup and export your data. -You can backup your data(ITEMS/PLACES) to a text file (as SQL expressions). -You can export backup file(s) to external storages/apps/services, such as iPhone's documents folder(which syncs with iCloud), Dropbox app, GoogleDrive app and so on. [Search and find at once.] *See all items in the place or search with keyword(s) -You can see all the ITEMS belonging to particular PLACE. -You can search an ITEM by keyword(s). AND/OR search is available. -You can search a PLACE as well. (but only AND search is available.)

About

WhiteStar StarDrop

Features
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WhiteStar's StarDrop is an anywhere-to-anywhere, post-quantum encrypted file transfer system that allows you to send files, pictures, videos and more (of any size of course!) to any StarFiles server. Transfers do not pass through a Cloud, and thus are much faster than other solutions. If your company is already using StarFiles, StarDrop is your mobile solution, fully integrated into the WhiteStar ecosystem. That means quick, fully encrypted file transfers to and from anywhere in the world over the WhiteStar Secure Overlay Network. StarDrop has full end-to-end pure post-quantum cryptography (Category 5) utilizing ML-KEM-1024 and ML-DSA-87 algorithms, alongside SHA-512 and AES-256. This protects your data against not just traditional brute-force attacks, but also secures your data against quantum superposition and factoring. New private keys are generated every time you start a transfers, with unique keys rolled on every packet, making your file transfers incredibly safe, even in hostile environments. Importantly, because WhiteStar StarDrop is not bound by the technical limitations of TCP/IP, and instead uses dynamically scaled packet size over the WhiteStar Network, there is not a 1:1 relationship between keys and content, making it far harder to intercept network frames containing key exchange information, let alone deciphering keying information. This is a marked improvement over older systems that utilize SFTP, AFP, Wireguard and other network security solutions for transferring data remotely. And of course, because it's fully integrated into the WhiteStar ecosystem, you can optionally receive detailed sensor data on data transferred through your organization's WhiteStar Files servers - but importantly, this data ALWAYS stays within your organization's control, is fully private, and is not seen by anyone outside of your company. Plus, StarDrop is integrated into the WhiteStar Dashboard for quick visibility into network traffic (that only your organization can see), email notifications on completion of StarDrops, enterprise-level server access controls and more! StarDrop encryption is automatic, and doesn't require you to worry about encrypting or decrypting your files, making or managing passwords, or teaching clients how to use complex cryptography tools. We do the hard part for you, so you can focus on what you do best and let us handle the heavy lifting of complex state-of-the-art cryptography. Never send secure documents over email again. Use StarDrop instead to easily encrypt and send your sensitive files!

Screenshots

PaperCode4 screens
WhiteStar StarDrop4 screens

Verdict

The call

The clearest difference is update cadence: WhiteStar StarDrop at weekly against PaperCode's every 3 weeks. 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PaperCode ships an update every 3 weeks, WhiteStar StarDrop weekly. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

Scorecard1 real difference · 9 level
PaperCode versus WhiteStar StarDrop: the parameters behind the verdict, then further details
ParameterPaperCodeWhiteStar StarDrop
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.6
Further details — not scored
Size25 MB81 MB
Age rating4+4+
DeveloperYuichiro MomosakiWhitestar Communications

In-app purchases

None

PaperCode

No in-app purchases

None

WhiteStar StarDrop

No in-app purchases

Questions

Is PaperCode free?
PaperCode is free to download, with no in-app purchases.
Is WhiteStar StarDrop free?
WhiteStar StarDrop is free to download, with no in-app purchases.
Do PaperCode or WhiteStar StarDrop have ads?
Neither PaperCode nor WhiteStar StarDrop shows ads.
Which is updated more often, PaperCode or WhiteStar StarDrop?
PaperCode ships an update every 3 weeks, and WhiteStar StarDrop weekly. Most recently, PaperCode was updated on November 12, 2026 and WhiteStar StarDrop on November 8, 2026.

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