Comparison

4Shoppers Mystery Shopper vs WorkOpus

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

Head to head
About

4Shoppers Mystery Shopper

Become a mystery shopper and earn money by evaluating services in stores, restaurants, and more. Access over 100,000 daily updated assignments globally. Complete tasks offline and get rewarded for your feedback.

Highlights
  • Mystery shopping assignments
  • Global task availability
  • Earn money on the go
  • Offline questionnaire mode
  • Service improvement feedback
Read full description

Improve the service and earn money! 4Service company offers to try yourself in the role of Mystery Shopper and install the free 4Shoppers mobile application. We have over 100,000 daily updated assignments in 52 countries. Thanks to our application, you can earn money while traveling, playing sports, visiting restaurants and shops, and even combining it with your regular job! We have been working since 2001 - we are the company you can trust! This works simply: - choose a task that is convenient to complete along the way, - receive confirmation from a 4Service employee, - study the instruction and prepare for the visit, - get to the place of inspection, - make a check, - fill out the questionnaire in the 4Shoppers application and send it to us (the application has an offline mode, the questionnaire can be filled out without the Internet), - get a reward for the visit after checking the questionnaire by a 4Service employee and the client. And what's the main - improve the service in your city with 4Service. Start with yourself right now! Join 4Service today and become part of a large team of Mystery Shoppers. Let's make the service the best in the world in general and in your city in particular! BE IN TOUCH If you have questions or suggestions, please write to us at 4shoppers_support@4service-group.com

About

WorkOpus

Features
Read full description

WorkOpus — сучасна платформа для пошуку роботи в Польщі та зручної взаємодії між кандидатами й рекрутерами. У застосунку ви можете: • переглядати актуальні вакансії в різних містах Польщі; • ознайомлюватися з умовами роботи, графіком, оплатою та проживанням; • подавати заявки на вибрані вакансії; • відстежувати статус своїх заявок; • отримувати повідомлення та важливу інформацію від рекрутера; • керувати своїм профілем і персональними даними; • працювати з кандидатами та рекрутинговими процесами, якщо ви маєте роль рекрутера. WorkOpus об’єднує вакансії, заявки, кандидатів і комунікацію в одному зручному застосунку. Доступність окремих функцій залежить від ролі користувача, статусу облікового запису та активних вакансій.

Screenshots

4Shoppers Mystery Shopper3 screens
WorkOpus4 screens

Verdict

The call

The clearest difference is update cadence: WorkOpus at every 3 days against 4Shoppers Mystery Shopper's every 6 weeks. 4Shoppers Mystery Shopper's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 18.0). On price, 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

4Shoppers Mystery Shopper ships an update every 6 weeks, WorkOpus every 3 days. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
4Shoppers Mystery Shopper versus WorkOpus: the parameters behind the verdict, then further details
Parameter4Shoppers Mystery ShopperWorkOpus
PriceFreeFree
Rating2.5 (4 ratings) — better—
Positive reviews6.1% of reviews—
Number of ratings4 — better—
Update frequencyEvery 6 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS9.0 — better18.0
Further details — not scored
Size53 MB27 MB
Age rating4+4+
Developer4ServiceGroupYevhenii Pichkur

In-app purchases

None

4Shoppers Mystery Shopper

No in-app purchases

None

WorkOpus

No in-app purchases

Questions

Is 4Shoppers Mystery Shopper free?
4Shoppers Mystery Shopper is free to download, with no in-app purchases.
Is WorkOpus free?
WorkOpus is free to download, with no in-app purchases.
Do 4Shoppers Mystery Shopper or WorkOpus have ads?
Neither 4Shoppers Mystery Shopper nor WorkOpus shows ads.
Which is updated more often, 4Shoppers Mystery Shopper or WorkOpus?
4Shoppers Mystery Shopper ships an update every 6 weeks, and WorkOpus every 3 days. Most recently, 4Shoppers Mystery Shopper was updated on November 1, 2026 and WorkOpus on November 6, 2026.

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