Service Tech Work Orders Plus vs Invoice Maker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Service Tech Work Orders Plus
Manage field service operations with this comprehensive app. Schedule appointments, create professional invoices and estimates, track client information, and analyze financial data. All your business management tools in one place, offline.
- Client-focused scheduling
- Professional invoicing and estimates
- Contact management with direct communication
- Inventory and labor tracking
- Profit & Loss analysis
- Offline data storage
- Customizable document formats
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Service Tech is a complete management app for all types of professional in Field service providers. It maintains a client focused schedule of your appointments. Integrated with your client contact info you can quickly create invoices and track your important accounts. Reasonable One-Time Price There are no monthly or annual fees to use your app. Powerful invoicing function is included to create, email and print all types of sales and service invoices. Invoice entry you can visualize the completed invoice as you go. The invoice entry view all of your transactions can be tailored to the unique needs of your business. There is extensive profit & loss analysis. This comprehensive business app provides complete financial information including inventory control and Profit & Loss Info. All information is maintained on your device and there is no need for connectivity or outside servers as is common with many of the more sophisticated business apps. Highlights: Project Pro Create cost plus type estimates and invoices with multiple levels and phases. Use Craftsman and your items with included descriptions and costs. Scheduler - The calendar on steroids. Select client names from your contacts and add the service information to the appointment. Create reminders, complete and invoice the transaction, view contact management info and send confirmations. All right from the appointment. View multiple calendars, set alerts, search history. Contact Management - Store notes, images and track other communications with your clients and have the in app ability to call, text, email or map without leaving your app. Labor, Parts & Supplies are maintained in the app with detailed multi-line descriptions, costs, price and units of measure & on hand quantities. These can be added on-the-fly or maintained from your stored items. Invoices are automatically created from your Estimates and support multiple payment methods. Maintain PAID and OPEN status of your invoices. Multiple sales tax rates. Your logo, detailed terms and conditions and other messages are automatically displayed. Estimates - In App Purchase required. Create detailed and professional looking estimates at the client site that may be immediately emailed or printed. Track the status of each Estimate from Draft to Email to Approved. Document Manager Document Design & Delivery- Change document formats, images, fonts, colors, and field names. Use your local language and terms. Batch deliver Printed & Email docs. Signature Capture of approved Estimates with an update of Status. Invoices and Estimates may be copied for editing and reuse with other clients. Financial Information - Is instantly available for any client, job or timeframe with just a few taps. Information may be viewed on screen or downloaded for further analysis with any spreadsheet. Help and Support - Context sensitive help shows by topic as well as how to movies. Email, text and phone support provides to help with any questions or issues. In-App Purchases Cloud Sync Automatically synchronize your information utilizing iCloud technology. For up to five devices this In App will keep your business info inSync and available on all your devices! Messages & Reminders Create Appointment Reminders automatically from your schedule using text or email. Profits and Reports Profits provides a complete financial system that tracks all sales, purchases and expenses. Includes ALL formatted PDF Reports that can be printed. + Spreadsheet Download Download your financial info and backup your info. Craftsman Cost Books This is the #1 info source for Construction Labor & Materials Cost Information. With over 15,000 labor and material items the info contained in these saves time required for creating project estimates and eliminates costly pricing errors. Recurring Service Repetitive Services entry and automatic weekly, semiweekly or monthly release for maintenance and other service providers.
Invoice Maker
Create and export professional invoices in PDF and Word formats directly from your iPhone or iPad. This app offers industry-specific templates, saved profiles for quick data entry, and offline functionality. It's designed for small businesses and freelancers to manage billing efficiently without recurring fees.
- Professional PDF & Word export
- Industry-tailored invoice designs
- Saved profiles and templates
- Automatic overdue invoice tracking
- Offline functionality
- Spanish UI support
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Create and export professional PDF & Word invoices on your iPhone or iPad. Stored locally, with no sign-in required, and with a lifetime purchase option. HIGHLIGHTS: - Six industry-tailored invoice designs. Similar professional layouts, with certain customizations made for each industry - Saved profiles/templates to allow you to write once and load info into each new invoice instantly - Export to PDF and Word (DOCX), with an "Export All" option for backup purposes. - Works fully offline: Your invoices are not saved in a far off server. - Multiple ways to enter invoice info, all intuitive. - Automatic tracking detecting when an invoice is overdue and auto-filled reminder message. - Spanish UI Support: If you prefer to work in Spanish and have English speaking clients, this is the app for you. PRICING: CLEAR AND FAIR • Free forever: 2 clean PDFs + 3 watermarked PDFs every month • 7 day free trial: Try out all features for 7 days • Monthly: $1.49/month • Annual: $5.99/year • Lifetime: $9.99. One-time, all features, no renewals Pro unlocks unlimited watermark-free PDFs, .docx exports and export all feature. Pricing may increase as we add features. SIX TEMPLATES, BUILT FOR REAL INDUSTRIES Pick the one that fits your work — all six share a similar professional design and field layouts, so you can switch templates on an existing invoice without losing any data: • General Business • Construction & Contractors • Tradespeople (electricians, plumbers, mobile mechanics) • Consultants • Creative Freelancers • Digital & Web Developers POWERFUL UNDER THE HOOD • Auto-saving drafts; never lose work • Live totals as you type: subtotal, line discounts, tax, grand total • Per-line pricing: fixed price, unit-based, hourly, or commission-based • Optional company logo embedded in every PDF and DOCX export • View all overdue invoices in one place Multiple ways to get paid • Tax IDs for both your business and your customer: EIN, VAT, or a custom label • Saved profiles for company info, customer info, payment method, and services — reuse on the next invoice in a single tap • Quick stats on the home screen: open invoices, outstanding total, drafts, paid count • Search and sort every list (Drafts, Outstanding, Paid) by date, name, or invoice number • Built for every screen — phones, tablets, portrait, or landscape • English and Spanish app UI (invoice documents always export in English so your clients receive consistent output) PRIVACY-FIRST DESIGN Your invoices stay on your device. No required sign-in, no cloud sync, no analytics tracking. Works fully offline. PERFECT FOR Freelancers, contractors, tradespeople, mobile mechanics, consultants, coaches, designers, web developers, side-hustlers, and small business owners who want to bill a client and get paid — without an accountant, a monthly fee, or a cloud account. QUESTIONS/SUGGESTIONS/FEATURE REQUESTS? Email zentechdeveloper@zenithtechnologyenterprises.com. Every message is read by a real person and we are happy to help. Please also let us know what other features you’d be interested in seeing! Check out our "Roadmap" link below for what we're currently working on. We would also greatly appreciate it if you could write us a review if you are finding the app useful. Privacy Policy: https://invoice.zenithtechnologyenterprises.com/privacy Terms of Use: https://invoice.zenithtechnologyenterprises.com/terms Roadmap: https://invoice.zenithtechnologyenterprises.com/roadmap
Screenshots
Verdict
The clearest difference is price: Invoice Maker at Free against Service Tech Work Orders Plus's $7.99. Invoice Maker also leads on rating (5.0 vs 4.2) and review sentiment (100% vs 82%). Service Tech Work Orders Plus's advantage is ratings volume (13 vs 1) and iOS requirement (13.0 vs 15.0). On 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
Invoice Maker is free to download; Service Tech Work Orders Plus costs $7.99 up front. Service Tech Work Orders Plus sells 10 one-off in-app purchases and Invoice Maker sells 3 in-app purchases, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.
Invoice Maker holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Service Tech Work Orders Plus has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 82% of Service Tech Work Orders Plus's written reviews are positive against 100% of Invoice Maker's.
Service Tech Work Orders Plus ships an update every 3 months, Invoice Maker every 5 weeks. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.
| Parameter | Service Tech Work Orders Plus | Invoice Maker |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | 4.2 (13 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 81.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 13 — better | 1 |
| Update frequency | Every 3 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 124 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | JZ Mobile LLC | Zenith Technology Enterprises LLC |
Customer experience
Service Tech Work Orders Plus
Invoice Maker
In-app purchases
Service Tech Work Orders Plus
- Messages & Reminders$3.99
- Estimates Bids & Quotes 2$3.99
- Scheduler$3.99
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- Auto Service Calls$4.99
- Cloud Sync Secure Data Sharing$6.99
- Profits Expenses & PDF Reports$6.99
- All Productivity In-Apps$9.99
- Monthly Statements$14.99
- Craftsman NCE Cost Book$14.99
- Mac User Full License$19.99
Invoice Maker
- Pro_Monthly7 Days trial$1.491 Month
- Pro_Annual7 Days trial$5.991 Year
- Pro_Lifetime$9.99
Questions
Is Service Tech Work Orders Plus free?
Is Invoice Maker free?
Which has better reviews, Service Tech Work Orders Plus or Invoice Maker?
Do Service Tech Work Orders Plus or Invoice Maker have ads?
Which is updated more often, Service Tech Work Orders Plus or Invoice Maker?
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