# Invoice and Estimates to PDF vs Simple Activity Tracker

The clearest difference is in-app purchases: Simple Activity Tracker at none against Invoice and Estimates to PDF's 2. Simple Activity Tracker also leads on ads (none vs shown) and update cadence (every 5 days vs monthly). Invoice and Estimates to PDF's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.6). On price there is nothing between them.

Both are free to download. Invoice and Estimates to PDF sells 2 in-app purchases, starting at $3.99 per month. Simple Activity Tracker asks for nothing beyond the download.

Invoice and Estimates to PDF ships an update monthly, Simple Activity Tracker every 5 days. The most recent releases landed on October 27, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Invoice and Estimates to PDF | Simple Activity Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (21 ratings)](https://appshunter.io/ios/app/invoice-and-estimates-to-pdf/id6443624707/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 4 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mateus Rocha Baviera](https://appshunter.io/developer/1619612975) | [Heriberto Roque Flores Bray](https://appshunter.io/developer/960891482) |

## What reviewers say

### Invoice and Estimates to PDF

[App page](https://appshunter.io/ios/app/invoice-and-estimates-to-pdf/id6443624707)

Easily create and share professional receipts and sales quotes for your clients. Utilize ready-to-use templates, manage customers and products, and add your company logo to digital documents.

**Highlights:** Receipt creator, Sales quote creator, Save receipts and quotes, Customer management, Product management, Company logo on documents, Share receipts and quotes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $3.99 | per month |
| Annual Plan | $29.99 | per year |


### Simple Activity Tracker

[App page](https://appshunter.io/ios/app/simple-activity-tracker/id6736479327)

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

**In-app purchases:** none


## Frequently asked questions

### Is Invoice and Estimates to PDF free?

Invoice and Estimates to PDF is free to download, with in-app purchases available.

### Is Simple Activity Tracker free?

Simple Activity Tracker is free to download, with no in-app purchases.

### Do Invoice and Estimates to PDF or Simple Activity Tracker have ads?

Invoice and Estimates to PDF shows ads; Simple Activity Tracker does not.

### Which is updated more often, Invoice and Estimates to PDF or Simple Activity Tracker?

Invoice and Estimates to PDF ships an update monthly, and Simple Activity Tracker every 5 days. Most recently, Invoice and Estimates to PDF was updated on October 27, 2026 and Simple Activity Tracker on October 11, 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.*