# Trinity vs MindInbox

The clearest difference is in-app purchases: Trinity at none against MindInbox's 2. Trinity also leads on update cadence (every 9 days vs monthly). MindInbox's advantage is iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. MindInbox sells 2 in-app purchases, starting at $3.99 per month. Trinity asks for nothing beyond the download.

Trinity ships an update every 9 days, MindInbox monthly. The most recent releases landed on September 13, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | Trinity | MindInbox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Size | 74 MB | 65 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ho ming Lau](https://appshunter.io/developer/1829678631) | [星宇 赵](https://appshunter.io/developer/1804927050) |

## What reviewers say

### Trinity

[App page](https://appshunter.io/ios/app/trinity/id6756862652)

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

**In-app purchases:** none


### MindInbox

[App page](https://appshunter.io/ios/app/mindinbox-ai-idea-inbox/id6761399366)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MindInbox pro monthly | $3.99 | per month |
| MindInbox pro yearly | $24.99 | per year |


## Frequently asked questions

### Is Trinity free?

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

### Is MindInbox free?

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

### Do Trinity or MindInbox have ads?

Neither Trinity nor MindInbox shows ads.

### Which is updated more often, Trinity or MindInbox?

Trinity ships an update every 9 days, and MindInbox monthly. Most recently, Trinity was updated on September 13, 2026 and MindInbox on July 5, 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.*