Comparison

Invoice Maker・Billing App vs TSI iTurbo Client Area

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

Head to head
About

Invoice Maker・Billing App

Create and share professional invoices and estimates quickly from any device. Save time on paperwork, stay organized, and get paid faster with customizable branding and payment options. Focus on your business while this app handles your billing.

Highlights
  • Create invoices and estimates quickly
  • Convert estimates to invoices
  • Save product/service details
  • Calculate taxes and discounts
  • Add payment methods
  • Customizable branding
  • Add signatures and photos
Features
Read full description

Over 5,500 users rated 5* for helping them create and share invoices in just a few seconds, on the go, from any device. Your time is too precious to spend on mundane paperwork. Let us handle that while you focus on what’s really important. FIVE REASONS TO GET STARTED NOW: 1. SAVE TIME Creating a professional invoice or estimate takes you just a few seconds and a couple of taps, as you save all details of your product or service —description, price and more. Convert estimates to invoices with one tap. 2. STAY ORGANIZED Never put off sending an invoice or estimate to your customer - you can easily create and share it before you leave the sight. Enter all the details you need, including tax or discounts - the app will do the math for you. Check simple and convenient reports in one glance to follow up on clients’ payments. 3. GET PAID FASTER Make it easy to get paid. Include your preferred payment methods description directly in your invoice - PayPal, bank account or cash - and enjoy getting paid in time. 4. LOOK PROFESSIONAL Impress your clients with crisp design and customized branding of your documents. Add signature, photos and notes to your invoices and quotes. INFO ABOUT USING THE APP AND REGARDING THE SUBSCRIPTION TERMS OF USE AND SUBSCRIPTION DETAILS You can create 1 free document, either invoice or estimate. After that, you can subscribe to the in-app to continue creating an unlimited number of invoices and estimates with a monthly subscription. You can cancel your subscription at any moment in your iTunes account settings, but refunds will not be provided for any unused portion of the terms. Payment will be charged to your iTunes Account at purchase confirmation. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. ------------ For support, email us support@saldoapps.com Terms of use: https://saldoapps.com/saldo-apps-terms-of-use Privacy policy: https://saldoapps.com/saldo-apps-privacy-policy by S/A Saldo Apps

About

TSI iTurbo Client Area

Features
Read full description

TSI prides itself on being an independent company ensuring the flexibility to offer services for all models of marine turbochargers. Our expert engineering staff are all trained to OEM standards and all our work is covered by a comprehensive 12-month warranty, making the company a cost-effective and reliable alternative to the OEM. TSI works to the highest standards, and each component that enters the workshop undergoes a series of rigorous checks. Trained in-house professionals carry out comprehensive measurements, wear analysis and inspection of components, transmitting the results to owners anywhere in the world. The company can provide new and reconditioned parts on direct sale or on an exchange basis. These include bearings, oil pumps and rotors. Our 24-hour dedicated breakdown team can take responsibility for all aspects of a breakdown from the supply of spare parts to organising logistic support and attendance of engineers worldwide. A door-to-deck service covers the entire supply chain from collection to delivery on board.

Screenshots

Invoice Maker・Billing App4 screens
TSI iTurbo Client Area4 screens

Verdict

The call

The clearest difference is in-app purchases: TSI iTurbo Client Area at none against Invoice Maker・Billing App's 10. TSI iTurbo Client Area also leads on iOS requirement (14 vs 16.0). Invoice Maker・Billing App's advantage is update cadence (every 2 weeks vs every 6 weeks) and chart position (#104 vs unranked). On price, 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・Billing App sells 8 in-app purchases, starting at $7.99 per month. TSI iTurbo Client Area asks for nothing beyond the download.

UpkeepUpdate frequency

Invoice Maker・Billing App ships an update every 2 weeks, TSI iTurbo Client Area every 6 weeks. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 7 level
Invoice Maker・Billing App versus TSI iTurbo Client Area: the parameters behind the verdict, then further details
ParameterInvoice Maker・Billing AppTSI iTurbo Client Area
PriceFreeFree
Rating4.7 (7.3K ratings) — better—
Positive reviews56.1% of reviews—
Number of ratings7.3K — better—
Update frequencyEvery 2 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#104 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.014 — better
Further details — not scored
Size322 MB26 MB
Age rating4+4+
DeveloperSaldo Apps Inc.Creative Technologist Ltd

Bugs and requests

Invoice Maker・Billing App

Reported bugs

5 issues
  • Invoices not sending properly
  • Subscription issues and unexpected charges
  • Data loss after app updates or device changes
  • Compatibility problems with newer iOS versions
  • Invoices showing as drafts unexpectedly

Requested features

5 requests
  • Add late fee feature
  • Improve invoice customization options
  • Integrate with inventory management systems
  • Provide better customer support channels
  • Offer a one-time purchase option

TSI iTurbo Client Area

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Invoice Maker・Billing App

Subscriptions8
  • Monthly Premium Subscription$7.991 Month
  • Saldo Apps Premium3 Days trial$9.997 Days
  • Saldo Apps Premium3 Days trial$11.997 Days
Show 5 more
  • Saldo Apps Premium3 Days trial$14.991 Month
  • Invoice Maker PRO Monthly3 Days trial2 variants$14.991 Month
  • Invoice Maker PRO Monthly2 variants$14.991 Month
  • Monthly subscription$14.991 Month
  • Monthly Premium Subscription$15.991 Month
None

TSI iTurbo Client Area

No in-app purchases

Questions

Is Invoice Maker・Billing App free?
Invoice Maker・Billing App is free to download, with in-app purchases available.
Is TSI iTurbo Client Area free?
TSI iTurbo Client Area is free to download, with no in-app purchases.
Do Invoice Maker・Billing App or TSI iTurbo Client Area have ads?
Neither Invoice Maker・Billing App nor TSI iTurbo Client Area shows ads.
Which is updated more often, Invoice Maker・Billing App or TSI iTurbo Client Area?
Invoice Maker・Billing App ships an update every 2 weeks, and TSI iTurbo Client Area every 6 weeks. Most recently, Invoice Maker・Billing App was updated on November 11, 2026 and TSI iTurbo Client Area on November 3, 2026.

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