Comparison

Scan Documents to PDF l by TSP vs MailTrace

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

Head to head
About

Scan Documents to PDF l by TSP

Transform your device into a powerful portable scanner. Easily capture, save, and share documents as PDFs, images, or text. Organize and sync your files with cloud storage, and protect them with passwords.

Highlights
  • Scan documents to PDF, Image, or TXT
  • Cloud sync with iCloud
  • OCR text extraction
  • Password protection
  • Digital signatures
  • Watermarking
  • Auto edge detection
Features
Read full description

Get a scanner in your pocket with Camera Scanner for free. Instantly scan, save and share any document in PDF, Image or TXT formats. Store all your documents and sync them with iCloud or export them to your favourite cloud storage. This is the right app for students and small businesses. Scan anything you need including contracts, receipts, paper notes, books and store your scans as individual files or multi-page PDFs. Our main features include: Auto scan detecting edges with option to tweak the selection Save your scans as images and PDFs Organise your folders and sync your files with iCloud Password-protect your files Edit and annotate your scans, and add Filters to add your desired effects You can add a watermark to your files Conveniently sign your scans, images and PDFs on the go OCR to extract texts from documents ----- Terms and Conditions: https://www.thesaltypistachio.com/document-scanner-terms-and-conditions Privacy Policy: http://thesaltypistachio.com/document-scanner-privacy-policy Do you have any questions or suggestions? Please send them to documentscanner@thesaltypistachio.com

About

MailTrace

Capture photos and screenshots, then add timestamp watermarks locally. Automatically generate email drafts with trace IDs and checksums for easy record-keeping and sharing.

Highlights
  • Timestamp watermarks on photos
  • Select images from library
  • Import via Share Extension
  • Custom watermark identity
  • Trace IDs and checksums in email
  • On-device processing
Features
Read full description

MailTrace is a lightweight on-device photo timestamping and email record tool for keeping personal process records, field notes, screenshots, and work-related image archives. You can take a photo, choose images from your library, or import screenshots and photos through the iOS share sheet. MailTrace adds timestamp watermarks locally on your device and prepares an email draft with a trace ID, attachment checksum information, and optional notes, making it easier to send records to your own mailbox or selected recipients for later review. Key features: • Add timestamp watermarks after taking a photo • Select images from your library and prepare trace emails • Import screenshots or photos through the Share Extension • Customize a short watermark identity, such as a project, field team, or role • Include trace IDs and SHA-256 attachment checksums in the email body • Fall back to the system share sheet when system Mail is unavailable • Process photos entirely on device without uploading them to any server Use cases: • Field or worksite records • Overtime process notes • Chat screenshot archiving • Project, inspection, delivery, or quality-control records • Personal image records organized by email and timestamp Privacy: MailTrace does not require an account, does not include advertising or tracking SDKs, and does not upload photos. Recipient emails and watermark settings are stored only on your device. Email delivery is handled by the iOS system Mail capability and depends on the Mail app, network status, and your email provider. Important note: MailTrace is intended for personal process records and later review. Watermarks, trace IDs, checksums, and email archives may serve as supporting material or reference, but they do not replace notarization, forensic examination, or electronic evidence preservation services, and they do not guarantee acceptance by any authority. For labor disputes, contract issues, or rights protection, keep the original records and consult a qualified professional.

Screenshots

Scan Documents to PDF l by TSP4 screens
MailTrace4 screens

Verdict

The call

The clearest difference is in-app purchases: MailTrace at none against Scan Documents to PDF l by TSP's 4. MailTrace also leads on rating (5.0 vs 4.6). Scan Documents to PDF l by TSP's advantage is ratings volume (258 vs 1) and update cadence (monthly vs every 2 months). On price, ads 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. Scan Documents to PDF l by TSP sells 3 in-app purchases, starting at $3.99 per month. MailTrace asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MailTrace holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Scan Documents to PDF l by TSP has 258 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Scan Documents to PDF l by TSP ships an update monthly, MailTrace every 2 months. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
Scan Documents to PDF l by TSP versus MailTrace: the parameters behind the verdict, then further details
ParameterScan Documents to PDF l by TSPMailTrace
PriceFreeFree
Rating4.6 (258 ratings)5.0 (1 ratings) — better
Positive reviews37.5% of reviews—
Number of ratings258 — better1
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size29 MB1 MB
Age rating4+4+
DeveloperThe Salty Pistachio玉东 娄

In-app purchases

3 purchases

Scan Documents to PDF l by TSP

Subscriptions3
  • Monthly Subscription7 Days trial2 variants$3.991 Month
  • Quarterly Subscription7 Days trial$9.993 Months
  • Annual Subscription7 Days trial$19.991 Year
None

MailTrace

No in-app purchases

Questions

Is Scan Documents to PDF l by TSP free?
Scan Documents to PDF l by TSP is free to download, with in-app purchases available.
Is MailTrace free?
MailTrace is free to download, with no in-app purchases.
Which has better reviews, Scan Documents to PDF l by TSP or MailTrace?
MailTrace is rated higher. Scan Documents to PDF l by TSP averages 4.6 out of 5 from 258 ratings, while MailTrace averages 5.0 from 1 ratings.
Do Scan Documents to PDF l by TSP or MailTrace have ads?
Neither Scan Documents to PDF l by TSP nor MailTrace shows ads.
Which is updated more often, Scan Documents to PDF l by TSP or MailTrace?
Scan Documents to PDF l by TSP ships an update monthly, and MailTrace every 2 months. Most recently, Scan Documents to PDF l by TSP was updated on November 7, 2026 and MailTrace on November 5, 2026.

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