# AngelTech vs # Simple Invoice

The clearest difference is in-app purchases: AngelTech at none against # Simple Invoice's 2. # Simple Invoice's advantage is update cadence (every 8 days vs every 3 weeks) and iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. # Simple Invoice sells 2 in-app purchases, starting at $1.99 per month. AngelTech asks for nothing beyond the download.

AngelTech ships an update every 3 weeks, # Simple Invoice every 8 days. The most recent releases landed on September 27, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | AngelTech | # Simple Invoice |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Free | — |
| Size | 145 MB | 48 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Angel Business Communications Limited](https://appshunter.io/developer/514339688) | [YUKI TANAIKE](https://appshunter.io/developer/478558546) |

## What reviewers say

### AngelTech

[App page](https://appshunter.io/ios/app/angeltech/id1587483320)

This event companion app helps attendees navigate conferences and trade shows. View schedules, bookmark sessions, connect with speakers and other participants, and manage your event access. It provides essential tools for a seamless event experience.

**Highlights:** View event agenda, Bookmark favorite talks and receive notifications, Browse sponsor and speaker lists, Chat with other attendees, Network by scanning badges, View attendee list, Access QR code for badge printing

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

**In-app purchases:** none


### # Simple Invoice

[App page](https://appshunter.io/ios/app/simple-invoice/id6761528129)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Pro (Monthly) | $1.99 | per month |
| Invoice Pro (Annual) | $18.00 | per year |


## Frequently asked questions

### Is AngelTech free?

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

### Is # Simple Invoice free?

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

### Do AngelTech or # Simple Invoice have ads?

Neither AngelTech nor # Simple Invoice shows ads.

### Which is updated more often, AngelTech or # Simple Invoice?

AngelTech ships an update every 3 weeks, and # Simple Invoice every 8 days. Most recently, AngelTech was updated on September 27, 2026 and # Simple Invoice on October 7, 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.*