Comparison

DoserX vs QR Codes

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

Head to head
About

DoserX

Features
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The DoserX application is designed to control and configure Aqua-Trend's SAMUDRA series multifunctional aquarium dispensers. The application works with the five-channel DoserX dispenser, and the three-channel DoserXs dispenser. DoserX is the sum of experience gained over 15 years by the first Polish manufacturer of aquarium dispensing equipment. The knowledge we gained, and the feedback from our customers, allowed us to build an aquarium dispenser that will meet the expectations of even the most demanding aquarists. This application will allow you to take advantage of all the functions that DoserX offers and will also help you in the daily care of your aquarium. Below you will find a description of some of the functions DoserX offers - Control operation of five (or three) precision peristaltic pumps: Schedule-based operation, manual switching of peristaltic pumps, rapid release of programmed doses, release of control doses. - Scheduler: An elaborate diagram with which you can easily program the dose release of each of the five ( or three) pumps. Thoughtful options for copying and transferring settings make it take just a few minutes to program the operation of all pumps. - Calibration: With the peristaltic pumps' calibration feature, you'll be sure that each released dose will contain the exact volume of liquid you programmed. - Calculation of consumption of pumping hoses and peristaltic heads. - Monitoring of fluid consumption: A function thanks to which you will always know when to refill the bottles with dispensed fluids. - Magnetic stirrer: Thanks to the operation of the magnetic stirrer you will be sure that suspensions and liquids containing solid particles (such as foods) will be dosed into the aquarium in the right way. - Temperature measurement: The temperature measured by the device is presented in the form of an easy-to-read graph containing historical measurements. - Temperature alarm: With DoserX, you will never miss a harmful rise, or drop in temperature. - Automatic refill with overrun alarm and operating time limit: A function that maintains a constant, safe level of water in the aquarium, in case of problems an appropriate acoustic alarm will sound and the topper will be turned off. - Aquarium maintenance logbook: With an extensive logbook, you will easily archive all activities, measurements and events in your aquarium. All entered data is presented in an easy-to-read graph that shows what changes have occurred in your aquarium over time. The application uses the BLE (Bluetooth Low Energy) communication standard in its operation.

About

QR Codes

Easily create, manage, and share custom QR codes from various data types. Enjoy live previews, full color customization, and seamless syncing across Apple devices. This utility is completely free to use.

Highlights
  • Instant QR code creation
  • Customizable QR code appearance
  • Support for URLs, contacts, and WiFi
  • Live preview of codes
  • Cross-device iCloud syncing
  • Free to use
Features
Read full description

QR Codes is a simple app that lets you instantly create, manage, and share custom QR codes. Generate codes from URLs, contact cards, and WiFi credentials—with live preview and full color customization. Plus, your QR codes are saved and synced seamlessly across all your Apple devices via iCloud, including iPhone, iPad, and Mac. And the best part? QR Codes is completely free, now and always.

Screenshots

DoserX4 screens
QR Codes4 screens

Verdict

The call

The clearest difference is update cadence: QR Codes at every 3 days against DoserX's every 3 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DoserX ships an update every 3 months, QR Codes every 3 days. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.

Scorecard1 real difference · 8 level
DoserX versus QR Codes: the parameters behind the verdict, then further details
ParameterDoserXQR Codes
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better17.0
Further details — not scored
Size58 MB3 MB
Age rating4+4+
DeveloperAqua-TrendDasmer Singh

In-app purchases

None

DoserX

No in-app purchases

None

QR Codes

No in-app purchases

Questions

Is DoserX free?
DoserX is free to download, with no in-app purchases.
Is QR Codes free?
QR Codes is free to download, with no in-app purchases.
Do DoserX or QR Codes have ads?
Neither DoserX nor QR Codes shows ads.
Which is updated more often, DoserX or QR Codes?
DoserX ships an update every 3 months, and QR Codes every 3 days. Most recently, DoserX was updated on October 9, 2026 and QR Codes on September 30, 2026.

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