Estimates App vs Invoice Maker by SPK
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Estimates App
This business tool helps you create professional estimates, invoices, and receipts quickly. It offers custom branding, virtual signatures, payment gateway integration, and detailed reporting to streamline your workflow and win more jobs.
- Custom branding with company logo
- Intuitive estimate and invoice builder
- Virtual signature pad for e-signatures
- In-built payment gateway for requests
- Convert estimates to invoices and receipts
- Print, export, or email documents in PDF
- Customer and job management
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Estimate App is a Powerful tool that allows you to quickly build estimates, invoices and Receipts on your iOS devices Features: - Custom Branding - Use your company logo. - Intuitive and Easy to use Builder that let's you save time by building professional Estimates & Invoices in minutes. - Includes a Virtual Signature Pad to allow your customers e-sign estimates on the spot or remotely helping you to speed up approvals and allow you to win more jobs. - Get automatic notifications when your estimates have been signed. - Request payments for your invoices via inbuilt Payment Gateway - Create a Menu of all your Service items and set rates for each and easily apply them when creating quotes to save time. - Convert Estimates to Invoices and Invoices to Receipts. - Duplicate Estimates, Invoices & Receipts - Instantly Print, Export or Email in PDF format. - Customizable templates with unlimited theme colors - Add Tax, Discounts, Shipping & handling & Amounts already paid info to your Invoices - Multi-Currency Support - Add Unlimited users - Add attachments (Images and Files) to your estimates and invoices - Customer & Job management options. - Generate Reports for a given date range - Archive your Estimates, Invoices & Receipts for future reference - Track year to year sales from the Dashboard - Share your documents via email & text
Invoice Maker by SPK
Create and send professional PDF invoices and estimates quickly and easily. This ad-free, watermark-free app is ideal for small business owners, consultants, and freelancers on the go. Customize templates, track clients, and manage your billing efficiently.
- Create unlimited invoices and estimates
- No ads or watermarks
- Customizable invoice fields
- Client list management
- Multiple sharing options (email, WhatsApp, text)
- Convert estimates to invoices
- Company logo and signature upload
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Invoice Maker+ is the #1 invoice app available today! It is an award-winning business utility app with NO ADS and NO WATERMARKS. It is the ideal on-the-go mobile solution for small business owners, consultants, contractors, and freelancers in all industries! Our easy-to-use generator allows you to create and send professional PDF invoices and estimates to your customers within seconds. Create invoices and estimates wherever you are! You can send an invoice while in the office, home, car, and even while you are still with your customer! Share via email, WhatsApp, text, print, and more! Our professionally designed template is sophisticated, clean, modern, and attractive, and the customization features allow you to add as much level of detail as you’d like! --- Features: * Create and Share UNLIMITED invoices and estimates with NO ADS and NO WATERMARKS * Select your region preference to customize your currency and date format * Preview via PDF while the invoice or estimate is being created * Customize invoice fields including billing date, due date, item name, item description, quantity, rate, item discount, shipping, tax, overall discount, etc. * Create, track, and store your client list * Deliver via customized email, whatsapp, text, messenger, print, and more * Track and organize your invoices and estimates using our filters and labels (“Outstanding”, “Paid”, “Open”, and “Closed”) * Upload a company logo to personalize your invoices and estimates * Include personal signature * Add payment details (bank transfer, check payable, paypal email) * Convert estimates to invoice with the press of a button * Duplicate an existing invoice or estimate with the press of a button (major time-saver for recurring customers!) * Mark an invoice or estimate as “Draft” if still a work in progress * Store and organize your invoices in one place so filing taxes is quick and easy * Automatically add names to your client list from your phone contacts * Add any additional notes you wish, such as payment terms, company policy, a “Thank You” note, etc. --- Privacy Policy: https://www.iubenda.com/privacy-policy/17124454 Terms and Conditions: https://www.iubenda.com/terms-and-conditions/17124454
Screenshots
Verdict
The clearest difference is review sentiment: Invoice Maker by SPK at 73% against Estimates App's 33%. Invoice Maker by SPK also leads on rating (4.8 vs 4.3) and update cadence (weekly vs every 4 months). Estimates App's advantage is in-app purchases (none vs 9). On price, ads, device support and iOS requirement 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
Both are free to download. Invoice Maker by SPK sells 9 in-app purchases, starting at $4.99 per month. Estimates App asks for nothing beyond the download.
Invoice Maker by SPK holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Invoice Maker by SPK has 911 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 33% of Estimates App's written reviews are positive against 73% of Invoice Maker by SPK's.
Estimates App ships an update every 4 months, Invoice Maker by SPK weekly. Both last shipped on October 24, 2026.
| Parameter | Estimates App | Invoice Maker by SPK |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (4 ratings) | 4.8 (911 ratings) — better |
| Positive reviews | 33.3% of reviews | 73.3% of reviews — better |
| Number of ratings | 4 | 911 — better |
| Update frequency | Every 4 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 9 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | IWT SOFTWARE LABS LLC | SPK Studios LLC |
Customer experience
Estimates App
Invoice Maker by SPK
Bugs and requests
Estimates App
Not enough reviews yet to summarise bugs or requests.
Invoice Maker by SPK
Reported bugs
2 issues- Invoices not updating correctly
- Inability to unsubscribe from paid features
Requested features
3 requests- Ability to sync data across devices
- Increased character limit for item descriptions
- Improved customer support
In-app purchases
Estimates App
No in-app purchases
Invoice Maker by SPK
- My Invoice Generator3 Days trial$4.991 Month
- The Invoice Maker3 Days trial$7.991 Month
- Invoice Maker App3 Days trial$9.991 Month
Show 6 moreShow fewer
- Invoice Maker Pro3 Days trial$9.991 Month
- Smart Invoice Maker3 Days trial$39.991 Year
- Quick Invoice Maker3 Days trial$59.991 Year
- Invoice Maker Professional3 Days trial$69.991 Year
- App Invoice Maker3 Days trial$89.991 Year
- Invoice Maker Plus3 Days trial$89.991 Year
Questions
Is Estimates App free?
Is Invoice Maker by SPK free?
Which has better reviews, Estimates App or Invoice Maker by SPK?
Do Estimates App or Invoice Maker by SPK have ads?
Which is updated more often, Estimates App or Invoice Maker by SPK?
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