# Invoice Simple App vs CollectKindness

The clearest difference is in-app purchases: CollectKindness at none against Invoice Simple App's 3. CollectKindness also leads on ads (none vs shown) and update cadence (every 3 days vs every 4 weeks). On price and device support there is nothing between them.

Both are free to download. Invoice Simple App sells 3 in-app purchases, starting at $5.99 per 7 days. CollectKindness asks for nothing beyond the download.

Invoice Simple App ships an update every 4 weeks, CollectKindness every 3 days. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Invoice Simple App | CollectKindness |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/invoice-simple-app/id6479690982/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 85 MB | 22 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Caprinix LLC](https://appshunter.io/developer/1530884900) | [KNARKZ SOLUTIONS LIMITED](https://appshunter.io/developer/1590810917) |

## What reviewers say

### Invoice Simple App

[App page](https://appshunter.io/ios/app/invoice-simple-app/id6479690982)

Easily create and customize professional invoices, estimates, and receipts. Automatically generate documents from estimates with a single tap. Supports custom templates, company logos, and payment terms for efficient billing.

**Highlights:** Customizable invoice templates, Generate PDF invoices and estimates, Add company logo, Include payment terms, Create receipts, Discount and tax options, Client setup from contacts

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features per week | $5.99 | per 7 days |
| Manage All Invoices Per Year | $49.99 | per year |
| Auto-manage & dispatch invoice | $69.99 | one-time |


### CollectKindness

[App page](https://appshunter.io/ios/app/collectkindness/id6740233821)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Invoice Simple App free?

Invoice Simple App is free to download, with in-app purchases available.

### Is CollectKindness free?

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

### Do Invoice Simple App or CollectKindness have ads?

Invoice Simple App shows ads; CollectKindness does not.

### Which is updated more often, Invoice Simple App or CollectKindness?

Invoice Simple App ships an update every 4 weeks, and CollectKindness every 3 days. Most recently, Invoice Simple App was updated on September 10, 2026 and CollectKindness on September 18, 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.*