# CONCH vs Invoice Maker

The clearest difference is in-app purchases: CONCH at none against Invoice Maker's 2. CONCH also leads on iOS requirement (12.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Invoice Maker sells 2 in-app purchases, starting at $3.99 per 7 days. CONCH asks for nothing beyond the download.

CONCH ships an update fortnightly, Invoice Maker monthly. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | CONCH | Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Size | 36 MB | 40 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [安徽海螺信息技术工程有限责任公司](https://appshunter.io/developer/1112475788) | [DZMITRY DULEBA](https://appshunter.io/developer/1847684802) |

## What reviewers say

### CONCH

[App page](https://appshunter.io/ios/app/conch-kt/id6740479708)

**Features:** macOS Compatibility

**In-app purchases:** none


### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-invio/id6761552306)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium weekly | $3.99 | per 7 days |
| Premium yearly | $34.99 | per year |


## Frequently asked questions

### Is CONCH free?

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

### Is Invoice Maker free?

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

### Do CONCH or Invoice Maker have ads?

Neither CONCH nor Invoice Maker shows ads.

### Which is updated more often, CONCH or Invoice Maker?

CONCH ships an update fortnightly, and Invoice Maker monthly. Most recently, CONCH was updated on October 1, 2026 and Invoice Maker on September 29, 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.*