# Invoice Maker ▸ Estimate Maker vs Контур.Диадок

The clearest difference is in-app purchases: Контур.Диадок at none against Invoice Maker ▸ Estimate Maker's 3. Invoice Maker ▸ Estimate Maker's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Invoice Maker ▸ Estimate Maker sells 3 in-app purchases, starting at $6.99 per month. Контур.Диадок asks for nothing beyond the download.

Invoice Maker ▸ Estimate Maker ships an update every 2 weeks, Контур.Диадок fortnightly. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Invoice Maker ▸ Estimate Maker | Контур.Диадок |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 95 MB | 98 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Raj Vadodariya](https://appshunter.io/developer/1891697194) | [SKB Kontur](https://appshunter.io/developer/417000920) |

## What reviewers say

### Invoice Maker ▸ Estimate Maker

[App page](https://appshunter.io/ios/app/invoice-maker-estimate-maker/id6810298471)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $6.99 | per month |
| Pro Yearly | $49.99 | per year |
| Pro Lifetime | $119.99 | one-time |


### Контур.Диадок

[App page](https://appshunter.io/ios/app/id6816990992)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Invoice Maker ▸ Estimate Maker free?

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

### Is Контур.Диадок free?

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

### Do Invoice Maker ▸ Estimate Maker or Контур.Диадок have ads?

Neither Invoice Maker ▸ Estimate Maker nor Контур.Диадок shows ads.

### Which is updated more often, Invoice Maker ▸ Estimate Maker or Контур.Диадок?

Invoice Maker ▸ Estimate Maker ships an update every 2 weeks, and Контур.Диадок fortnightly. Most recently, Invoice Maker ▸ Estimate Maker was updated on October 31, 2026 and Контур.Диадок on October 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.*