# PromptFolio vs ObsiKO

The clearest difference is in-app purchases: ObsiKO at none against PromptFolio's 1. ObsiKO also leads on device support (4 vs 2) and iOS requirement (15.1 vs 18.0). PromptFolio's advantage is update cadence (every 2 days vs every 6 days). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. PromptFolio sells 1 one-off in-app purchase. ObsiKO asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for PromptFolio against 5.0 for ObsiKO. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

PromptFolio ships an update every 2 days, ObsiKO every 6 days. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PromptFolio | ObsiKO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/promptfolio/id6752543182/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/obsiko-ai-note-plus-mindmap/id6783405451/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 6 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 77 MB | 77 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Michael Aaron](https://appshunter.io/developer/1839780360) | [Hyojin Kim](https://appshunter.io/developer/6783405453) |

## What reviewers say

### PromptFolio

[App page](https://appshunter.io/ios/app/promptfolio/id6752543182)

Organize and track your AI image generation prompts and their results across various platforms. Save prompts, attach generated images, and compare outputs to build a searchable library of what works best for you. Enhance your prompts with smart suggestions and creative vocabulary.

**Highlights:** Save prompts with OCR extraction, Attach generated images/videos, Track platform, model, and settings, Searchable visual library, Lexicon suggestions for prompt improvement, Creative vocabulary for descriptors, Remix prompts for iteration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Prompts | $0.99 | one-time |


### ObsiKO

[App page](https://appshunter.io/ios/app/obsiko-ai-note-plus-mindmap/id6783405451)

This app integrates writing, knowledge management, and mind mapping with AI assistance. It supports various file formats and offers unique features for Korean language users, including a focus timer and GitHub syncing for secure data management.

**Highlights:** AI-assisted writing and mind mapping, Supports Obsidian vaults (.md, .canvas, .base), Korean dictionary and spell checker, Lock Screen focus timer, GitHub sharing and syncing, Automatic note connection and organization, Infinite mind-map canvas with Apple Pencil support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is PromptFolio free?

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

### Is ObsiKO free?

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

### Which has better reviews, PromptFolio or ObsiKO?

PromptFolio and ObsiKO are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do PromptFolio or ObsiKO have ads?

Neither PromptFolio nor ObsiKO shows ads.

### Which is updated more often, PromptFolio or ObsiKO?

PromptFolio ships an update every 2 days, and ObsiKO every 6 days. Most recently, PromptFolio was updated on October 31, 2026 and ObsiKO 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.*