Comparison

Catalyst Database vs Invoice Maker, Estimates Easy

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

Head to head
About

Catalyst Database

Features
Read full description

We purchase and recycle ceramic and metal catalytic converters as well as diesel particulate filters (DPF). More info: http://www.catalystrecycling.pl/pl_pl/ The app will allow you to know the best prices of the catalytic converters or precious metals. Remember, you should write to Catalyst Recycling Michal Gorny to get your account to use in this app.

About

Invoice Maker, Estimates Easy

Create and send professional invoices, estimates, and receipts on the go. This app helps small business owners, freelancers, and contractors manage their billing with customizable templates and easy tracking.

Highlights
  • Create and send invoices, estimates, and receipts
  • Convert estimates to invoices with one click
  • Customize documents with quantity, rate, and price
  • Add billing conditions, discounts, and taxes
  • Create custom templates for quick additions
  • Track income with reports
  • Set company logo and signature
Features
Read full description

Invoice Maker it is free app for create and send professional invoicing & bills & PDF invoice templates & estimates & receipts & quotes & purchase orders & proforma invoices and more to your customers. Invoicing app is the perfect business tool for small business owners, contractors, consultants and freelancers needing a simple on-the-go mobile invoice application. Create, send, email, print and track professional invoices and estimates & quotes & billbook on your phone. Invoice Maker Features: • Create Estimates, send to your clients, and then easily convert them to invoices (one click) • Customize everything you need while creating (quantity, rate, price етс) • Add billing conditions (today, tomorrow, 14 days, 30 days or any date) • Create templates for quick addition (item, price, contact, shipping, tax etc.) • Add discount, tax on item or total. • Add notes • Add images for your document • Choose any currency • Set your logo, information, sign document for your company • Choose your PDF design from templates • Track your income in Reports tab • Support any payment method (PayPal, debit and credit cards, checks and cash) • Send created invoice with email, messenger, etc. And many other features. - SUBSCRIPTION INFO - Offers auto-renewal subscription options: - 1 month ( auto-renewal ) - 1 week ( auto-renewal ) - 1 year ( auto-renewal ) *Payment will be charged to iTunes Account at confirmation of purchase. *Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. *Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. *Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. *Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Terms of Use and Privacy Policy: https://docs.google.com/document/d/1EA-mFkur9EUW9cRGi4bND1Kmint15APnCZvoxxXk0Q0/edit?usp=sharing Thanks for reading

Screenshots

Catalyst Database3 screens
Invoice Maker, Estimates Easy4 screens

Verdict

The call

The clearest difference is in-app purchases: Catalyst Database at none against Invoice Maker, Estimates Easy's 4. Catalyst Database also leads on iOS requirement (12.0 vs 15.6). On price, update cadence, ads 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. Invoice Maker, Estimates Easy sells 4 in-app purchases, starting at $7.99 per 7 days. Catalyst Database asks for nothing beyond the download.

UpkeepUpdate frequency

Catalyst Database ships an update every 4 months, Invoice Maker, Estimates Easy every 2 months. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
Catalyst Database versus Invoice Maker, Estimates Easy: the parameters behind the verdict, then further details
ParameterCatalyst DatabaseInvoice Maker, Estimates Easy
PriceFreeFree
Rating—4.1 (43 ratings) — better
Positive reviews—33.3% of reviews
Number of ratings—43 — better
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size22 MB48 MB
Age rating4+4+
DeveloperSoftwareStudio Sp. z o.o.Evgeniy Bujanivskiy

In-app purchases

None

Catalyst Database

No in-app purchases

4 purchases

Invoice Maker, Estimates Easy

Subscriptions4
  • Full access$7.997 Days
  • Full Access3 Days trial$7.997 Days
  • Full access$15.991 Month
Show 1 more
  • Full access$29.991 Year

Questions

Is Catalyst Database free?
Catalyst Database is free to download, with no in-app purchases.
Is Invoice Maker, Estimates Easy free?
Invoice Maker, Estimates Easy is free to download, with in-app purchases available.
Do Catalyst Database or Invoice Maker, Estimates Easy have ads?
Neither Catalyst Database nor Invoice Maker, Estimates Easy shows ads.
Which is updated more often, Catalyst Database or Invoice Maker, Estimates Easy?
Catalyst Database ships an update every 4 months, and Invoice Maker, Estimates Easy every 2 months. Most recently, Catalyst Database was updated on October 15, 2026 and Invoice Maker, Estimates Easy on October 8, 2026.

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