# Plnnr AI vs SecondBrain

The clearest difference is monetization model: SecondBrain at free with in-app purchases against Plnnr AI's subscription. SecondBrain also leads on rating (5.0 vs 4.8) and review sentiment (100% vs 89%). Plnnr AI's advantage is ads (none vs shown) and ratings volume (81 vs 6). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Plnnr AI sells 10 in-app purchases, starting at $7.99 per month and SecondBrain sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

SecondBrain holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Plnnr AI has 81 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 89% of Plnnr AI's written reviews are positive against 100% of SecondBrain's.

Plnnr AI ships an update every 5 days, SecondBrain every 3 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Plnnr AI | SecondBrain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (81 ratings)](https://appshunter.io/ios/app/plnnr-ai-daily-planner/id6740782723/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/secondbrain-ai-memory/id6762130376/reviews)** |
| Number of ratings | **81** | 6 |
| Positive reviews | 88.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 161 MB | 73 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [California Air, LLC](https://appshunter.io/developer/1791635724) | [Federico Cesarini](https://appshunter.io/developer/1888767256) |

## What reviewers say

### Plnnr AI

[App page](https://appshunter.io/ios/app/plnnr-ai-daily-planner/id6740782723)

This app uses AI to create a realistic daily schedule from your calendar and to-do list. It automatically replans your day when changes occur, offering suggestions for your approval. It helps you manage your time effectively and ensures you know when your day is too full.

**Highlights:** AI-powered daily planning, Automatic replanning of schedule, Calendar and to-do list integration, Task prioritization and time management, Daily morning and evening briefs, Routine and habit building

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited (1 Month) | $7.99 | per month |
| Unlimited (1 Year) | $24.99 | per year |
| Unlimited (1 Year) | $29.99 | per year |
| Plnnr AI Yearly | $49.99 | per year |
| Unlimited (1 Year) | $49.99 | per year |
| Unlimited 1 Year - 3 Days Trial | $49.99 | per year |
| Unlimited 1 Year - 7Days Trial | $49.99 | per year |
| Unlimited (1 Year) | $59.99 | per year |
| Unlimited (1 Year) | $59.99 | per year |
| Unlimited (1 Year) | $59.99 | per year |


### SecondBrain

[App page](https://appshunter.io/ios/app/secondbrain-ai-memory/id6762130376)

This app automatically transcribes, titles, and files your spoken thoughts, creating a self-organizing note system. It can convert voice notes into calendar events, provide daily summaries, and allow you to chat with your saved information.

**Highlights:** Automatic transcription and titling, AI-powered self-organizing notes, Voice to calendar event creation, Daily morning briefing summaries, Chat with your notes for answers, 3D brain graph visualization, Full-text search, Cross-app sharing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SecondBrain Pro | $8.99 | per month |
| SecondBrain Pro Yearly | $34.99 | per year |
| SecondBrain Pro Yearly | $44.99 | per year |


## Frequently asked questions

### Is Plnnr AI free?

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

### Is SecondBrain free?

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

### Which has better reviews, Plnnr AI or SecondBrain?

SecondBrain is rated higher. Plnnr AI averages 4.8 out of 5 from 81 ratings, while SecondBrain averages 5.0 from 6 ratings.

### Do Plnnr AI or SecondBrain have ads?

SecondBrain shows ads; Plnnr AI does not.

### Which is updated more often, Plnnr AI or SecondBrain?

Plnnr AI ships an update every 5 days, and SecondBrain every 3 days. Most recently, Plnnr AI was updated on November 4, 2026 and SecondBrain 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.*