# PrompTessor vs Second Brain

The clearest difference is in-app purchases: Second Brain at none against PrompTessor's 10. PrompTessor's advantage is iOS requirement (15.1 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PrompTessor sells 10 one-off in-app purchases. Second Brain asks for nothing beyond the download.

PrompTessor ships an update every 5 weeks, Second Brain monthly. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PrompTessor | Second Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/promptessor-ai-prompt/id6755622823/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free | — |
| Size | 40 MB | 37 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Rizki Murtadha](https://appshunter.io/developer/1632257712) | [Dcode](https://appshunter.io/developer/1868391710) |

## What reviewers say

### PrompTessor

[App page](https://appshunter.io/ios/app/promptessor-ai-prompt/id6755622823)

This tool helps you generate, analyze, and optimize prompts for various AI models. It can also reverse-engineer prompts from different media types and organize them in a personal library for reuse.

**Highlights:** Prompt Generation, Prompt Analysis & Scoring, Prompt Optimization, Reverse Prompting from Media, Prompt Refinement, Prompt Library & Sharing, Model-Agnostic Workflows

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 750 Addon Usage | $5.00 | one-time |
| Pro Monthly | $10.00 | one-time |
| Pro Monthly | $12.00 | one-time |
| Pro+ Monthly | $15.00 | one-time |
| Pro+ Monthly | $18.00 | one-time |
| Max Monthly | $24.00 | one-time |
| Pro Yearly | $100.00 | one-time |
| Pro+ Yearly | $125.99 | one-time |
| Pro+ Yearly | $150.00 | one-time |
| Max Yearly | $200.00 | one-time |


### Second Brain

[App page](https://appshunter.io/ios/app/second-brain-ai-note/id6799343264)

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

**In-app purchases:** none


## Frequently asked questions

### Is PrompTessor free?

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

### Is Second Brain free?

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

### Do PrompTessor or Second Brain have ads?

Neither PrompTessor nor Second Brain shows ads.

### Which is updated more often, PrompTessor or Second Brain?

PrompTessor ships an update every 5 weeks, and Second Brain monthly. Most recently, PrompTessor was updated on November 9, 2026 and Second Brain on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*