Comparison

Document Scanner vs GTG Device Manager

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

Head to head
About

Document Scanner

This app transforms your mobile device into a powerful scanner. It can digitize documents, extract text using OCR, convert files to various formats, and even restore old photos. Manage and share your scanned files with ease.

Highlights
  • Scan documents, receipts, and books
  • Extract text from images and PDFs (OCR)
  • Convert documents to PDF, JPG, TXT, DOCX
  • Restore and colorize old photos
  • Convert images directly to Excel spreadsheets
  • Recognize handwriting to text
  • File management with folders and sharing
Features
Read full description

Document Scanner is a mobile phone scanner that integrates document scan, recognizes text automatically (OCR), PDF converter, handwriting to text, old photo restoration and ID Card & passport Scan. Download this scanner app for free to instantly scan, save, and share any document in PDF, JPG or TXT formats. ------Feature Highlights------ Document Scanner •scan anything you need, receipts, contracts, paper notes, fax papers, books •store your scans as multipage PDF or JPG files Image to text(OCR) •Extract text from pictures or pdf documents, convert pictures to text, and convert image to excel •Support docx, txt, word, pdf, xlsx and other document formats to export. PDF converter •convert document files (doc, docx, ppt, pptx) to/from PDF. •Supported file formats: pdf, jpg, doc, docx, txt, xls, xlsm, xlsx, csv, ppt, pptm, pptx Photo Restoration •Using the artificial intelligence technology, you can restore old photos, blur photos, restore old photos, color black and white photos, and color black and white photos. Image to excel •Directly convert pictures to Excel , you can make and edit spreadsheet easily •Save or export to xls/xlsx format Handwriting to text •Accurately recognize handwriting to text •Support docx, txt, word, pdf, xlsx and other document formats to export. Files manager •Share files for commenting or viewing in WhatsApp, iMessage, Microsoft Teams. •Manage files with folders, drag & drop to reorder, and enjoy other document editing features. Subscription Instructions: Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Privacy Policy: http://www.palmmob.cn/yinsi/saomiaoyinsiiosen.html User Agreement: http://www.palmmob.cn/yinsi/saomiaoyonghuxieyiiosen.html

About

GTG Device Manager

Features
Read full description

SENKO GTG Device Manager App. SI-Series and SP-Series detectors was developed to prevent unfortunate accidents caused by gas explosions in hazardous places such as plants, gas storages, and factories. When installed in hazardous area, Toxic gas detector SI-Series will regularly and continuously detect the gas leakage and display the data with FND and to supply 4-20mA standard output.

Screenshots

Document Scanner4 screens
GTG Device Manager4 screens

Verdict

The call

The clearest difference is in-app purchases: GTG Device Manager at none against Document Scanner's 6. Document Scanner's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.4). On price, update cadence and 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Document Scanner sells 6 in-app purchases, starting at $4.99 per month. GTG Device Manager asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

Scorecard3 real differences · 7 level
Document Scanner versus GTG Device Manager: the parameters behind the verdict, then further details
ParameterDocument ScannerGTG Device Manager
PriceFreeFree
Rating5.0 (7 ratings) — better—
Positive reviews95.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11.0 — better16.4
Further details — not scored
Size51 MB11 MB
Age rating4+17+
Developerpalmmobsenko inc.,

In-app purchases

6 purchases

Document Scanner

Subscriptions6
  • scanner Premium Monthly$4.991 Month
  • scanner Premium quarterly$9.993 Months
  • Scanner Premium quarterly$9.996 Months
Show 3 more
  • scanner Premium Yearly3 Days trial$14.991 Year
  • scanner Premium Yearly$14.991 Year
  • Scanner Premium Yearly$29.991 Year
None

GTG Device Manager

No in-app purchases

Questions

Is Document Scanner free?
Document Scanner is free to download, with in-app purchases available.
Is GTG Device Manager free?
GTG Device Manager is free to download, with no in-app purchases.
Do Document Scanner or GTG Device Manager have ads?
Neither Document Scanner nor GTG Device Manager shows ads.
Which is updated more often, Document Scanner or GTG Device Manager?
Document Scanner ships an update every 2 months, and GTG Device Manager every 2 months. Most recently, Document Scanner was updated on October 14, 2026 and GTG Device Manager on October 19, 2026.

Other comparisons