# 71ONE vs ktak

The clearest difference is in-app purchases: 71ONE at none against ktak's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ktak sells 2 in-app purchases, starting at $4.99 per month. 71ONE asks for nothing beyond the download.

71ONE ships an update weekly, ktak every 5 days. The most recent releases landed on October 29, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | 71ONE | ktak |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 67 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Oksana Bereza](https://appshunter.io/developer/6805865773) | [Raf Tadevosyan](https://appshunter.io/developer/1873905022) |

## What reviewers say

### 71ONE

[App page](https://appshunter.io/ios/app/71one/id6805865771)

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

**In-app purchases:** none


### ktak

[App page](https://appshunter.io/ios/app/ktak-simple-invoice-maker/id6814668070)

Create professional invoices and quotes in minutes. Track payments, send reminders, and manage client details. Offers customizable templates and multiple currency support.

**Highlights:** Create invoices and quotes quickly, Track payments and overdue invoices, Customizable invoice templates, Support for multiple currencies and taxes, Generate PDF invoices in 11 languages, Client management, Backup to Files

**Features:** iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ktak Monthly | $4.99 | per month |
| ktak Annual | $29.99 | per year |


## Frequently asked questions

### Is 71ONE free?

71ONE is free to download, with no in-app purchases.

### Is ktak free?

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

### Do 71ONE or ktak have ads?

Neither 71ONE nor ktak shows ads.

### Which is updated more often, 71ONE or ktak?

71ONE ships an update weekly, and ktak every 5 days. Most recently, 71ONE was updated on October 29, 2026 and ktak on November 10, 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.*