# Invoice Maker ▸ Estimate App vs FLEX PLUS

The clearest difference is rating: Invoice Maker ▸ Estimate App at 4.8 against FLEX PLUS's 1.0. Invoice Maker ▸ Estimate App also leads on update cadence (weekly vs every 46 months) and ratings volume (37K vs 1). FLEX PLUS's advantage is in-app purchases (none vs 19) and iOS requirement (10.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Invoice Maker ▸ Estimate App sells 19 in-app purchases, starting at $4.99 per 7 days. FLEX PLUS asks for nothing beyond the download.

Invoice Maker ▸ Estimate App holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Invoice Maker ▸ Estimate App has 37K ratings behind it against 1, so its average is the more settled of the two.

Invoice Maker ▸ Estimate App ships an update weekly, FLEX PLUS every 46 months. The most recent releases landed on October 15, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Invoice Maker ▸ Estimate App | FLEX PLUS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (37K ratings)](https://appshunter.io/ios/app/invoice-maker-estimate-app/id1314873764/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/flex-plus/id1492429745/reviews) |
| Number of ratings | **37K** | 1 |
| Positive reviews | 85.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 46 months |
| Monetization | Freemium | **Free** |
| Best chart rank | **#13** | — |
| Size | 257 MB | 11 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GetPaid Inc.](https://appshunter.io/developer/1314873763) | [FLEX-ING HOLDINGS LIMITED](https://appshunter.io/developer/1492341311) |

## What reviewers say

### Invoice Maker ▸ Estimate App

[App page](https://appshunter.io/ios/app/invoice-maker-estimate-app/id1314873764)

**Currently charting:** #13 Top Grossing · Business, #178 Top Free · Business (US App Store)

Create, send, and manage professional invoices and estimates quickly. This app helps freelancers and small businesses track payments, organize client information, and generate reports for bookkeeping. Get paid faster and maintain a professional image with customizable templates.

**Highlights:** Create invoices and estimates quickly, Send via email or messengers, Attach photos to estimates, Use premium invoice templates, Track received payments, Monitor unpaid invoices, Organize client and item lists, Download reports on paid invoices

**Features:** Family Sharing

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week Plus Invoice Maker | $4.99 | per 7 days |
| Week Plus – 1 week | $4.99 | per 7 days |
| Week Plus Tofu | $5.99 | per 7 days |
| Week Plus Tofu | $5.99 | per 7 days |
| Invoice Maker Weekly Unlimited | $5.99 | per 7 days |
| Weekly Plus Tofu | $7.99 | per 7 days |
| Weekly Plus Tofu | $7.99 | per 7 days |
| Invoice Maker Plus | $9.99 | per 7 days |
| Week Plus Tofu | $9.99 | per 7 days |
| Week Plus Tofu | $9.99 | per 7 days |
| Month Plus Invoice Maker | $9.99 | per month |
| Month Plus – 1 Month | $9.99 | per month |
| Month Plus Tofu | $9.99 | per month |
| Month Plus Invoice Maker | $14.99 | per month |
| Month Premium Plan | $17.99 | per month |
| Monthly Unlimited | $17.99 | per month |
| Annual Unlimited | $99.99 | per year |
| Annual Unlimited (with trial) | $99.99 | per year |
| Year Plus Tofu | $99.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 💼 Helps run business efficiently
- 🏆 Professional-looking invoices
- ⚡ Quick invoice creation
- 🕰 Time-saving

**What reviewers complain about**

- 🐛 Frequent crashes and freezes
- 🔒 Lack of customer support
- 💰 Expensive subscription
- 🔍 Difficult to find features
- 🤔 Confusing interface

**Reported bugs**

- Invoices not sending properly
- Invoices disappearing
- Incorrect currency display
- Exporting issues

**Requested features**

- Add custom logo option
- Inventory management system
- Refund/payment cancellation feature
- Search function for clients
- Duplicate invoice option


### FLEX PLUS

[App page](https://appshunter.io/ios/app/flex-plus/id1492429745)

This platform provides a convenient way to order from local stores and receive deliveries at your preferred location. It offers a user-friendly interface, loyalty points for discounts, and real-time order tracking. Explore a wide range of categories and enjoy personalized recommendations.

**Highlights:** Order from favorite stores, Delivery to preferred location, User-friendly registration, Promotions and loyalty points, Real-time order tracking, Wide range of product categories

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Invoice Maker ▸ Estimate App free?

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

### Is FLEX PLUS free?

FLEX PLUS is free to download, with no in-app purchases.

### Which has better reviews, Invoice Maker ▸ Estimate App or FLEX PLUS?

Invoice Maker ▸ Estimate App is rated higher. Invoice Maker ▸ Estimate App averages 4.8 out of 5 from 37K ratings, while FLEX PLUS averages 1.0 from 1 ratings.

### Do Invoice Maker ▸ Estimate App or FLEX PLUS have ads?

Neither Invoice Maker ▸ Estimate App nor FLEX PLUS shows ads.

### Which is updated more often, Invoice Maker ▸ Estimate App or FLEX PLUS?

Invoice Maker ▸ Estimate App ships an update weekly, and FLEX PLUS every 46 months. Most recently, Invoice Maker ▸ Estimate App was updated on October 15, 2026 and FLEX PLUS on September 23, 2026.

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