Comparison

Invoice Generator vs OTS

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

Head to head
About

Invoice Generator

Easily create and share professional invoices from your mobile device. Save customer and item details, track payment statuses, and add your logo. Auto-generates invoice numbers and offers cloud backup.

Highlights
  • Create invoices on the go
  • Auto-generate invoice numbers
  • Add and auto-fill customer details
  • Save items for quick invoicing
  • Mark invoices as paid/unpaid
  • View outstanding payments
  • Add logos to invoices
Features
Read full description

Create invoices and share them with your customers on the go. You can also save items, customer details, and invoices. Mark invoices as paid or unpaid and filter them based on payment status, add logos to invoices, and view outstanding payments. Here's what you can do with our free invoice generator app: CREATE INVOICES ON THE GO Create invoices in minutes at any time and from anywhere with the Zoho Invoice Generator app. AUTO GENERATE INVOICE NUMBER Zoho Invoice Generator automatically generates and assigns an invoice number to your transactions so you don't have to. ADD CUSTOMERS Add names, email ids, and addresses of customers you regularly service, and quickly invoice them. AUTO-FILL CUSTOMER DETAILS Eliminate tedious data entry by scanning customers' business cards and letting Zoho Invoice Generator auto-fill customer details for you. IMPORT CUSTOMER DETAILS FROM CONTACTS Save time by importing all your customers' details directly from mobile contacts. CREATE ITEMS Create and quickly save items that you regularly sell to your customers with Zoho Invoice Generator. SAVE INVOICES ON YOUR MOBILE With Zoho Invoice Generator, you can save invoices to your mobile phone for easy and quick access. SAVE INVOICES ON iCLOUD Never lose an invoice. Zoho Invoice Generator allows you to save your invoices to iCloud as backup. MARK INVOICES AS PAID/UNPAID Mark your invoices based on their status as paid and unpaid and also filter them based on status. VIEW OUTSTANDINGS View and keep a track of outstanding payments with Zoho Invoice Generator.

About

OTS

Features
Read full description

OTS is the AI-powered order, inventory, delivery, and business management platform built for modern SMBs, retailers, and boutique brands. Streamline all incoming orders from WhatsApp, phone calls, in-store sales, and online channels in one intuitive dashboard. Eliminate messy spreadsheets, lost notes, and operational chaos! KEY FEATURES AI-POWERED SMART BUSINESS ASSISTANT - Create orders using natural conversational language (e.g., "Open a new order for John with 2 items"). - Add products, update prices, and adjust stock quantities in seconds via AI. - Request instant operational reports: query daily revenue, pending orders, and low-inventory alerts anytime. - Safe and reliable: built-in confirmation cards ensure you always stay in full control. END-TO-END ORDER MANAGEMENT & LIVE TRACKING - Create, customize, and edit orders in seconds. - Live order lifecycle tracking: In Line, In Process, In Transit, and Completed. - Automatic calculation of taxes, custom discounts, delivery, and service fees. - Send live, branded order tracking links directly to customers via WhatsApp or SMS. SMART MULTI-UNIT INVENTORY TRACKING - Organize catalog with categories, barcodes, and custom item variations. - Flexible multi-unit support: Pieces, Kilograms (KG), Meters, Liters, and Gallons (ideal for fabrics, cables, hardware, food, and wholesale). - Automated stock deduction upon order completion and real-time low-stock alerts. COST PRICE & REAL-TIME PROFIT / LOSS ANALYTICS - Assign purchase/cost prices to each product. - Track net profit and margin on active orders directly from the dashboard. - Monitor gross revenue, financial metrics, and store growth in real-time. CUSTOMER DIRECTORY & BALANCE (LEDGER) TRACKING - Comprehensive customer profiles with saved addresses and contact details. - Instant access to complete customer purchase histories. - Effortlessly track customer debts, payments, and outstanding balances. MAP, COURIER & DISPATCH INTEGRATION - Pin delivery addresses on interactive maps for streamlined route dispatch. - Integrated courier and shipping status notes to prevent delivery delays. - Seamless coordination between dispatchers, couriers, and in-store staff. INVOICES & ORDER SUMMARIES - Generate sleek, professional order receipts and digital invoices. - Export or share summaries in print-ready PDF or digital formats. APPLE ECOSYSTEM & SEAMLESS CLOUD SYNC - Native support across iPhone, iPad, and Mac / Web browsers. - Automatic cloud synchronization keeps your data secure and backed up 24/7. - Multi-user support with custom staff permissions. IDEAL FOR: - Boutique & handmade craft merchants (fashion, jewelry, gifts) - Businesses selling by length, weight, or volume (textiles, cables, hardware, food) - Cafes, restaurants, bakeries, and delivery hubs - Wholesalers and retail distributors - Water, gas, and localized courier delivery services - Social commerce (Instagram, WhatsApp) & online merchants SUBSCRIPTION & IN-APP PURCHASE INFORMATION: Download OTS for free and start streamlining your operations. Upgrade to OTS PRO for unlimited capacity, advanced analytics, and multi-user sync. - Payment will be charged to your Apple ID 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. - You can manage and cancel your subscriptions anytime in your App Store Account Settings after purchase. Privacy Policy: https://ots.efestech.com/privacy-policy Terms of Use (EULA): https://ots.efestech.com/terms-of-service

Screenshots

Invoice Generator4 screens
OTS4 screens

Verdict

The call

The clearest difference is in-app purchases: Invoice Generator at none against OTS's 2. Invoice Generator also leads on device support (4 vs 2) and iOS requirement (14.0 vs 17.0). OTS's advantage is update cadence (every 5 days vs every 2 weeks). On price 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. OTS sells 2 in-app purchases, starting at $5.99 per month. Invoice Generator asks for nothing beyond the download.

UpkeepUpdate frequency

Invoice Generator ships an update every 2 weeks, OTS every 5 days. The most recent releases landed on October 21, 2026 and October 17, 2026 respectively.

Scorecard4 real differences · 6 level
Invoice Generator versus OTS: the parameters behind the verdict, then further details
ParameterInvoice GeneratorOTS
PriceFreeFree
Rating4.9 (18K ratings) — better—
Positive reviews91.4% of reviews—
Number of ratings18K — better—
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS14.0 — better17.0
Further details — not scored
Size22 MB137 MB
Age rating4+4+
DeveloperZoho CorporationEFES TECH

Bugs and requests

Invoice Generator

Reported bugs

4 issues
  • App crashed and won't even open anymore
  • Delayed emails when emailing invoices
  • Login screen freezes
  • Incompatible with older devices

Requested features

8 requests
  • Showing all the paid invoices amount
  • The ability to write in partial payments on an invoice
  • Changes for service-based businesses
  • The ability to save customers details
  • The ability to change the terms field on the invoice
Show 3 more
  • The ability to add extra lines in the address creation tool
  • The ability to attach a copy of a receipt with the invoice
  • The ability to make the amount optional as billing for hours and not amount

OTS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Invoice Generator

No in-app purchases

2 purchases

OTS

Subscriptions2
  • Monthly7 Days trial$5.991 Month
  • Yearly$59.991 Year

Questions

Is Invoice Generator free?
Invoice Generator is free to download, with no in-app purchases.
Is OTS free?
OTS is free to download, with in-app purchases available.
Do Invoice Generator or OTS have ads?
Neither Invoice Generator nor OTS shows ads.
Which is updated more often, Invoice Generator or OTS?
Invoice Generator ships an update every 2 weeks, and OTS every 5 days. Most recently, Invoice Generator was updated on October 21, 2026 and OTS on October 17, 2026.

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