# Flip Organizer vs Invoice & Estimates maker

The clearest difference is in-app purchases: Flip Organizer at none against Invoice & Estimates maker's 2. Flip Organizer also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.6). Invoice & Estimates maker's advantage is update cadence (every 8 days vs monthly). On price and ads there is nothing between them.

Both are free to download. Invoice & Estimates maker sells 2 in-app purchases, starting at $5.99 per month. Flip Organizer asks for nothing beyond the download.

Flip Organizer ships an update monthly, Invoice & Estimates maker every 8 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Flip Organizer | Invoice & Estimates maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 8 days** |
| Size | 54 MB | 25 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [GOLOCO COMPANY LIMITED](https://appshunter.io/developer/1555914504) | [Redvanta Software Ltd](https://appshunter.io/developer/6794076039) |

## What reviewers say

### Flip Organizer

[App page](https://appshunter.io/ios/app/flip-organizer/id6473123342)

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

**In-app purchases:** none


### Invoice & Estimates maker

[App page](https://appshunter.io/ios/app/invoice-and-estimates-maker/id6794076037)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zindow Pro | $5.99 | per month |
| Zindow Pro | $50.99 | per year |


## Frequently asked questions

### Is Flip Organizer free?

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

### Is Invoice & Estimates maker free?

Invoice & Estimates maker is free to download, with in-app purchases available.

### Do Flip Organizer or Invoice & Estimates maker have ads?

Neither Flip Organizer nor Invoice & Estimates maker shows ads.

### Which is updated more often, Flip Organizer or Invoice & Estimates maker?

Flip Organizer ships an update monthly, and Invoice & Estimates maker every 8 days. Most recently, Flip Organizer was updated on October 27, 2026 and Invoice & Estimates maker on October 25, 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.*