Comparison

iStamp vs PosApp

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

Head to head
About

iStamp

Easily add custom watermarks to multiple photos simultaneously. Protect your images with text, logos, or existing graphics. Save watermark designs as templates for quick application.

Highlights
  • Batch watermarking
  • Add text watermarks
  • Add logo/image watermarks
  • Customizable text (color, font)
  • Adjust watermark properties (scale, opacity, angle)
  • Save watermark templates
Features
Read full description

Quickly and easily add watermarks to all your photos in one shot! Protect and copyright has never been so easy. - Add text, logo, image to photo - Choose any color or font for you text - Adjust scale, opacity, font, color, angle for your watermark - Save your watermarks as template to quickly reuse later Q: I want to use my signature or logo as the visible watermark for my photos. How do I add graphic to use in app? A: To do that you need to make the .png graphics on your computer, email it to yourself, open the email on your iOS device and save to your photo album. In iStamp, to create a graphic watermark and choose the graphic from your photo album to add it as a new watermark.

About

PosApp

Manage your business operations, including sales, inventory, and employee performance, from anywhere. This app provides real-time data and reports to help store owners make informed decisions and maintain continuous operations, even offline.

Highlights
  • Real-time business data access
  • Sales and revenue reporting
  • Inventory management and warnings
  • Employee performance tracking
  • Offline operation support
  • Order and bill management
  • Chain store performance overview
Read full description

PosApp Report allows store owners to manage all business activities, manage employees, reading business reports, inventory report anytime, anywhere on mobile device. - Store owner / Manager can access to real-time data to make instant decision. These are some of our reports: - Branch performance management - Sales report - Revenue by time - Revenue by product / Category - Revenue by employee - Number of customer by time - Inventory report & warning - Financial report - Order & bill report - Report order / Invoice by employee or by time PosApp is the best POS System solution for your F&B business Allow customers to view the online menu, order at the table on the tablet, taking delivery order from mobile devices Chain store management system allows store owner to check all branches’s performance within seconds These are some of the outstanding features of PosApp: All employee activities are reported to manager in real-time Manage employee role easily on mobile phone Full feature management: Order, Inventory management, revenue & expenditure management on mobile phone - Seamless offline: Whether the Internet/Wifi is up or down, PosApp continues to work to keep your store operates continuously. All your data will be synchronized to the Cloud when network returns. Support bill printing & kitchen printing Support all kinds of printer including: Bluetooth printer, USB printer, LAN printer etc.

Screenshots

iStamp4 screens
PosApp3 screens

Verdict

The call

The clearest difference is update cadence: PosApp at every 4 weeks against iStamp's every 5 months. iStamp's advantage is iOS requirement (7.0 vs 11.0). On price, review sentiment, ads and in-app purchases 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

iStamp ships an update every 5 months, PosApp every 4 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard2 real differences · 8 level
iStamp versus PosApp: the parameters behind the verdict, then further details
ParameteriStampPosApp
PriceFreeFree
Rating3.6 (25 ratings) — better—
Positive reviews47.1% of reviews53.8% of reviews — better
Number of ratings25 — better—
Update frequencyEvery 5 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better11.0
Further details — not scored
Size31 MB35 MB
Age rating4+4+
DeveloperTektrify, IncPOSAPP TECHNOLOGY JOINT STOCK COMPANY

Customer experience

iStamp

All ratings24 ratings
Positive62.5%
Neutral4.2%
Negative33.3%
Written reviews140 reviews
Positive47.1%
Neutral10.0%
Negative42.9%

PosApp

Written reviews13 reviews
Positive53.8%
Neutral7.7%
Negative38.5%

In-app purchases

None

iStamp

No in-app purchases

None

PosApp

No in-app purchases

Questions

Is iStamp free?
iStamp is free to download, with no in-app purchases.
Is PosApp free?
PosApp is free to download, with no in-app purchases.
Do iStamp or PosApp have ads?
Neither iStamp nor PosApp shows ads.
Which is updated more often, iStamp or PosApp?
iStamp ships an update every 5 months, and PosApp every 4 weeks. Most recently, iStamp was updated on November 1, 2026 and PosApp on November 2, 2026.

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