Comparison

Clean Is Mandatory Studio vs Invoice App by Invoice Maker

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

Head to head
About

Clean Is Mandatory Studio

This app simplifies appointment booking, allowing users to find and schedule services 24/7. It offers instant booking, appointment reminders, and easy rescheduling options to manage your schedule efficiently.

Highlights
  • 24/7 appointment booking
  • Instant booking with providers
  • Appointment reminders
  • Easy rescheduling and editing
  • Manage appointments on-the-fly
Features
Read full description

Clean Is Mandatory Studio app makes it easy to book your appointments anytime, so that you can get on with your day. When you find a provider you vibe with, you will be able to book instantly, but that's not all.. With Clean Is Mandatory Studio app you can do more, better: - Book 24/7: Clean Is Mandatory Studio app allows you to check for available appointments without having to pick up the phone. Simply find a time that works for you and get on the books. - Get Notified: You're busy, we get it. We'll send you reminders so you never miss an appointment again. - Manage On-the-Fly: Plans change and schedules shift; Clean Is Mandatory Studio app makes it easy to reschedule and edit appointments without the back-and-forth. Scheduling appointments shouldn't feel like a chore.

About

Invoice App by Invoice Maker

Create professional invoices quickly and easily. This app helps freelancers and small businesses generate clear billing documents, track payments, and maintain organized financial records. Streamline your billing process and get paid faster.

Highlights
  • Create professional invoices in minutes
  • Add client, product, and service details
  • Calculate taxes, discounts, and totals
  • Add payment terms and due dates
  • Preview and share invoices as PDFs
  • Organize billing details
Features
Read full description

You work hard for your clients. Getting paid shouldn’t create more work. Invoice Maker helps freelancers, contractors, creators, and small business owners create clear, professional invoices—without wrestling with complicated software or time-consuming templates. CREATE AN INVOICE IN MINUTES 1. Add your business and client details 2. Enter your products, services, rates, and quantities 3. Review your invoice and share it as a professional PDF SIMPLE, PROFESSIONAL BILLING • Create polished invoices wherever you work • Add clients, products, and services quickly • Calculate subtotals, taxes, discounts, and totals • Add payment terms, due dates, and helpful notes • Preview invoices before sending • Save and share invoices as PDFs • Keep your billing details organized for next time BUILT FOR INDEPENDENT WORK Whether you’re completing a client project, making a delivery, finishing a repair, or selling a service, Invoice Maker helps you move from finished work to a finished invoice with less friction. No more rebuilding invoices from scratch. No more scattered billing details. No more losing valuable time to paperwork. LOOK PROFESSIONAL. BILL WITH CONFIDENCE. Give clients a clear record of what they purchased, what they owe, and when payment is due. With a straightforward workflow and clean invoice design, you can stay organized and present your business professionally. Your work is valuable. Make invoicing the easy part. Download Invoice Maker and create your first invoice today. Terms of Use: https://invoicemaker.com/policies/terms-of-use/ Privacy Policy: https://invoicemaker.com/policies/privacy-policy/

Screenshots

Clean Is Mandatory Studio3 screens
Invoice App by Invoice Maker4 screens

Verdict

The call

The clearest difference is in-app purchases: Clean Is Mandatory Studio at none against Invoice App by Invoice Maker's 5. Clean Is Mandatory Studio also leads on ratings volume (7 vs 1) and iOS requirement (12.0 vs 15.0). Invoice App by Invoice Maker's advantage is update cadence (every 11 days vs every 6 months). On price, rating, review sentiment and ads 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 App by Invoice Maker sells 5 in-app purchases, starting at $12.00 per month. Clean Is Mandatory Studio asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Clean Is Mandatory Studio against 5.0 for Invoice App by Invoice Maker. That said, the two scores are not equally well evidenced: Clean Is Mandatory Studio has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Clean Is Mandatory Studio ships an update every 6 months, Invoice App by Invoice Maker every 11 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
Clean Is Mandatory Studio versus Invoice App by Invoice Maker: the parameters behind the verdict, then further details
ParameterClean Is Mandatory StudioInvoice App by Invoice Maker
PriceFreeFree
Rating5.0 (7 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings7 — better1
Update frequencyEvery 6 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size28 MB30 MB
Age rating4+4+
DeveloperRALPH FEVRIERInvoice Maker

Customer experience

Clean Is Mandatory Studio

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Invoice App by Invoice Maker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Clean Is Mandatory Studio

No in-app purchases

5 purchases

Invoice App by Invoice Maker

Subscriptions5
  • Essentials Monthly7 Days trial$12.001 Month
  • Complete Monthly7 Days trial$24.001 Month
  • Essentials Yearly7 Days trial$100.001 Year
Show 2 more
  • Complete Yearly7 Days trial$200.001 Year
  • Complete Yearly – Special Offer3 Months trial$200.001 Year

Questions

Is Clean Is Mandatory Studio free?
Clean Is Mandatory Studio is free to download, with no in-app purchases.
Is Invoice App by Invoice Maker free?
Invoice App by Invoice Maker is free to download, with in-app purchases available.
Which has better reviews, Clean Is Mandatory Studio or Invoice App by Invoice Maker?
Clean Is Mandatory Studio and Invoice App by Invoice Maker are both rated 5.0 out of 5 on the App Store, from 7 and 1 ratings respectively.
Do Clean Is Mandatory Studio or Invoice App by Invoice Maker have ads?
Neither Clean Is Mandatory Studio nor Invoice App by Invoice Maker shows ads.
Which is updated more often, Clean Is Mandatory Studio or Invoice App by Invoice Maker?
Clean Is Mandatory Studio ships an update every 6 months, and Invoice App by Invoice Maker every 11 days. Most recently, Clean Is Mandatory Studio was updated on November 1, 2026 and Invoice App by Invoice Maker on November 5, 2026.

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