# Invoice & Estimate Maker vs OPS Merchant

The clearest difference is in-app purchases: OPS Merchant at none against Invoice & Estimate Maker's 2. Invoice & Estimate Maker's advantage is update cadence (every 3 months vs every 38 months) and chart position (#176 vs unranked). On price, ads and device support there is nothing between them.

Both are free to download. Invoice & Estimate Maker sells 2 in-app purchases, starting at $1.99 per month. OPS Merchant asks for nothing beyond the download.

Invoice & Estimate Maker ships an update every 3 months, OPS Merchant every 38 months. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Invoice & Estimate Maker | OPS Merchant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (12K ratings)](https://appshunter.io/ios/app/invoice-and-estimate-maker/id1271353929/reviews)** | — |
| Number of ratings | **12K** | — |
| Positive reviews | 74.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 38 months |
| Monetization | Subscription | — |
| Best chart rank | **#176** | — |
| Size | 93 MB | 33 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SVG Apps](https://appshunter.io/developer/1154426191) | [Bluu, Inc.](https://appshunter.io/developer/978926661) |

## What reviewers say

### Invoice & Estimate Maker

[App page](https://appshunter.io/ios/app/invoice-and-estimate-maker/id1271353929)

**Currently charting:** #176 Top Grossing · Business (US App Store)

Quickly generate professional invoices and estimates for your clients. Customize templates with your business details, add unlimited customers and services, and track payments on the go. Convert estimates to invoices with a single tap.

**Highlights:** Create invoices and estimates, Customize company details and logo, Unlimited customers, products, and services, Professional invoice themes, Track payments, Email invoices in PDF format, Convert estimates to invoices

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Annual Subscription | $19.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Professional-looking invoices
- 💡 Customizable with company logo
- 🚀 Quick to create estimates and invoices
- 👍 Helpful for small businesses

**What reviewers complain about**

- 🐛 Issues with emailing invoices/estimates
- 🐛 Data sync problems between devices
- 🔒 Lack of customer support responsiveness
- 🔒 Subscription renewal issues
- 🐛 Unexpected app lockouts

**Reported bugs**

- Quantity and price changes not saving correctly
- Inability to edit customer information
- Losing all past estimates/invoices when switching devices

**Requested features**

- Add ability to track material expenses and payroll
- Allow adding multiple phone numbers and emails per client
- Implement a way to back up data
- Provide a phone number for customer support
- Add option to sort/track created sections (e.g., labor, materials)


### OPS Merchant

[App page](https://appshunter.io/ios/app/ops-merchant/id1445445039)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Invoice & Estimate Maker free?

Invoice & Estimate Maker is free to download, with in-app purchases available.

### Is OPS Merchant free?

OPS Merchant is free to download, with no in-app purchases.

### Do Invoice & Estimate Maker or OPS Merchant have ads?

Neither Invoice & Estimate Maker nor OPS Merchant shows ads.

### Which is updated more often, Invoice & Estimate Maker or OPS Merchant?

Invoice & Estimate Maker ships an update every 3 months, and OPS Merchant every 38 months. Most recently, Invoice & Estimate Maker was updated on October 29, 2026 and OPS Merchant on October 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*