# Japer AI vs RKji

The clearest difference is in-app purchases: RKji at none against Japer AI's 10. RKji also leads on ads (none vs shown) and update cadence (every 5 days vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Japer AI sells 10 in-app purchases, starting at $6.99 per 7 days. RKji asks for nothing beyond the download.

Japer AI ships an update every 2 weeks, RKji every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Japer AI | RKji |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (570 ratings)](https://appshunter.io/ios/app/japer-ai-writbot/id1671151816/reviews)** | — |
| Number of ratings | **570** | — |
| Positive reviews | 72.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 2 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Subhan Dastgeer](https://appshunter.io/developer/1722914219) | [Krishna Keerty](https://appshunter.io/developer/6806040253) |

## What reviewers say

### Japer AI

[App page](https://appshunter.io/ios/app/japer-ai-writbot/id1671151816)

This AI-powered writing assistant helps generate various content types, from essays and emails to marketing copy. It offers tools to rewrite, expand, or summarize text, brainstorm ideas, and provides over 70 templates for different writing needs. An integrated AI chat assists with refining content and answering writing-related questions.

**Highlights:** AI content generation, Email and essay writing, Marketing copy creation, Text rewriting and summarization, Idea brainstorming, Over 70 writing templates, AI chat assistant

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $6.99 | per 7 days |
| Weekly Pro | $6.99 | per 7 days |
| WritBot Premium Access | $7.99 | per month |
| WritBot Premium Access | $9.99 | per month |
| WritBot Premium Access | $11.99 | per month |
| Yearly Plan (Discounted) | $29.99 | per year |
| WritBot Premium | $39.99 | per year |
| WritBot Yearly Access | $39.99 | per year |
| WritBot Premium Access | $40.00 | per year |
| WritBot Premium Access | $59.99 | per year |


### RKji

[App page](https://appshunter.io/ios/app/rkji/id6806040251)

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

**In-app purchases:** none


## Frequently asked questions

### Is Japer AI free?

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

### Is RKji free?

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

### Do Japer AI or RKji have ads?

Japer AI shows ads; RKji does not.

### Which is updated more often, Japer AI or RKji?

Japer AI ships an update every 2 weeks, and RKji every 5 days. Most recently, Japer AI was updated on November 3, 2026 and RKji on October 31, 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.*