Comparison

App4Picking vs Stack61

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

Head to head
About

App4Picking

This iPad app simplifies warehouse logistics for wholesalers. It streamlines order picking, inventory counts, and item movements by integrating with existing business software. Its user-friendly interface ensures quick implementation and efficient operations.

Highlights
  • Order picking with barcode scanning
  • Inventory counts on-site
  • Item movement tracking
  • Direct ERP system integration
  • User-friendly interface
  • Quick implementation
Read full description

Are you a wholesaler that is looking for a simple system to pick orders in your warehouse? App4Picking is developed to take your logistics to a higher level. What is App4Picking? App4Picking is an iPad app that handles primary logistics transactions such as order picking, counts, and displacements through a tablet. The simplicity of the app’s functionality ensures that you can flawlessly and quickly pick your orders, perform counts, and move items. The app is quickly implemented and requires virtually no explanation, as it works in a logical way and is very user-friendly. Link to your business software App4Picking uses the existing CMS system of the App4Sales platform. This allows us to directly link this app to many ERP systems. Ask for the possibilities! Order picking On your tablet, you can see the orders that are still “to be delivered” in your ERP software. After selecting the order, you can handle the order lines with a barcode scanner or manually enter the picked numbers. If the last order line has been processed, the order status will change to ready in your ERP software. Movements You can now move items with instant processing in your ERP by scanning with App4Picking. Scan the location and the item at the place you are taking the goods and do the same thing at the place where you put the goods back into storage. These transactions are processed directly in the ERP. You can find an overview of the movements in the CMS. Counts Within your organisation, you regularly count your stock, which takes a lot of time to process on paper. With App4Picking, you have the option to scan locations and record the score within the app on site. You send the counts to the CMS for the final check, and with the push of a button, you can forward it to your ERP. Stocking Incoming products can immediately be processed with App4picking. Assign a location to the incoming product with the app. The products and their location can be found directly in your ERP system.

About

Stack61

Streamline warehouse operations with this mobile inventory management solution. Automate tracking, logging, and searching of materials from your device, with features for QR code tagging, inspections, and live reporting.

Highlights
  • Automated inventory tracking
  • QR code item tagging
  • Material usage logging
  • Mobile inventory search
  • Inspection checklists
  • Live stock reporting
Read full description

Stack61 is an intelligent warehouse and inventory management solution, hosted by Petro IT on a secure cloud and offered as a SaaS subscription. Automate day-to-day inventory operations by accessing material source documentation, tagging, logging, and tracking material usage, and searching for inventory data available on your mobile device; freedom from being logged into an office system.  Make your inventory management mobile and more accessible using Stack61. Easy steps of Stack 61’s Intelligent Inventory Management 1) Log material inventory and optionally also print individual QR codes for each item 2) Issue material receipt, and transfer items from one location to another 3) View Data reports on our web portal Features of Stack61 Inventory Management * Enables user to collect material and attribute information on a mobile application and attach required documentation. * Allows the user to uniquely tag each item or material using a QR code. * Enables inspection using material specific inspection checklists for ensuring completeness. * Leverages company standards and codes to align with company database standards. * Damage/Quarantine inspection process with source documentation. * Track manufacturer to Use movement history on all material. * Provides accurate online stock records of company warehouses and storage yards. * Live reporting provides oversight on material inventory. * Ability to reserve and issue material for projects. Why use Stack 61? * Complete inventory management system customisable according to your materials. * Best iOS inventory management app with intelligent inventory algorithms. * Stack61 is your go-to unique inventory management system for everyday operations. * Provides complete control over your inventory. * Provide customers with excellent service by extracting appropriate documents to backup customer manufacturing documentation immediately, as all records are linked to each material. Use Stack61 to take complete control of your inventory management. Share your experience with Stack61 at info@petroit.com

Screenshots

App4Picking4 screens
Stack614 screens

Verdict

The call

The clearest difference is rating: Stack61 at 3.4 against App4Picking's 1.0. Stack61 also leads on update cadence (every 6 weeks vs every 11 months) and ratings volume (5 vs 1). App4Picking's advantage is iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and monetization model 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.

ReceptionRating · Positive reviews · Number of ratings

Stack61 holds the better App Store score, 3.4 against 1.0. That said, the two scores are not equally well evidenced: Stack61 has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

App4Picking ships an update every 11 months, Stack61 every 6 weeks. The most recent releases landed on June 1, 2026 and June 4, 2026 respectively.

Scorecard4 real differences · 6 level
App4Picking versus Stack61: the parameters behind the verdict, then further details
ParameterApp4PickingStack61
PriceFreeFree
Rating1.0 (1 ratings)3.4 (5 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings15 — better
Update frequencyEvery 11 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size80 MB60 MB
Age rating4+4+
DeveloperOptimizers B.V.Petro IT Ireland Limited

Customer experience

App4Picking

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Stack61

All ratings5 ratings
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

None

App4Picking

No in-app purchases

None

Stack61

No in-app purchases

Questions

Is App4Picking free?
App4Picking is free to download, with no in-app purchases.
Is Stack61 free?
Stack61 is free to download, with no in-app purchases.
Which has better reviews, App4Picking or Stack61?
Stack61 is rated higher. App4Picking averages 1.0 out of 5 from 1 ratings, while Stack61 averages 3.4 from 5 ratings.
Do App4Picking or Stack61 have ads?
Neither App4Picking nor Stack61 shows ads.
Which is updated more often, App4Picking or Stack61?
App4Picking ships an update every 11 months, and Stack61 every 6 weeks. Most recently, App4Picking was updated on June 1, 2026 and Stack61 on June 4, 2026.

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