Comparison

DP vs CO2 Filter Calc

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

Head to head
About

DP

This tool helps users configure and select DP pumps for their specific applications. It provides detailed product information, including technical specifications, hydraulic curves, and dimensions, based on your selection criteria.

Highlights
  • Intuitive product configuration
  • Selection via hydraulic data (Q, H)
  • Replacement product comparison
  • Direct pump type selection
  • Technical specification sheets
  • Hydraulic curves
  • Dimensions and drawings
Read full description

DP Select is the official product selection tool of DP pumps. This selection tool assists you with an intuitive product configuration for your application. Detailed product information is provided as result of your selection. Set-up product selection • Selecting via hydraulic data Q, H • Selecting a replacement product via Compare • Direct product selection via Pump type Provided product information • Technical specification sheet • Hydraulic curves • Dimensions / drawings • Motor data

About

CO2 Filter Calc

Features
Read full description

The TOMCO Systems Filter Calculator is an assistant tool for sizing CO2 Polishing Filters. This app will help you understand what size filter will be necessary for your system to ensure you get the best product. As the exclusive U.S. distributor of Sure Purity filters, TOMCO2 Systems is proud to offer Sure Purity's high-quality products that are trusted by some of the biggest names in the industry. Sure Purity manufactures an advanced range of carbon dioxide multi-barrier polishing filters – carbogaurd. These barrier filters offer 12-month maintenance intervals while simultaneously offering the most enhanced protection from Carbonyl Sulphide (COS).

Screenshots

DP4 screens
CO2 Filter Calc3 screens

Verdict

The call

The clearest difference is update cadence: CO2 Filter Calc at weekly against DP's every 16 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

DP ships an update every 16 months, CO2 Filter Calc weekly. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

Scorecard1 real difference · 8 level
DP versus CO2 Filter Calc: the parameters behind the verdict, then further details
ParameterDPCO2 Filter Calc
PriceFreeFree
Rating4.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 16 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better14.0
Further details — not scored
Size15 MB1 MB
Age rating4+4+
DeveloperDP PumpsTOMCO2 Systems Company

In-app purchases

None

DP

No in-app purchases

None

CO2 Filter Calc

No in-app purchases

Questions

Is DP free?
DP is free to download, with no in-app purchases.
Is CO2 Filter Calc free?
CO2 Filter Calc is free to download, with no in-app purchases.
Do DP or CO2 Filter Calc have ads?
Neither DP nor CO2 Filter Calc shows ads.
Which is updated more often, DP or CO2 Filter Calc?
DP ships an update every 16 months, and CO2 Filter Calc weekly. Most recently, DP was updated on October 1, 2026 and CO2 Filter Calc on October 2, 2026.

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