# LETS Investigate vs mailin

The clearest difference is in-app purchases: LETS Investigate at none against mailin's 4. LETS Investigate also leads on iOS requirement (12.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. mailin sells 4 in-app purchases, starting at $4.99 per month. LETS Investigate asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | LETS Investigate | mailin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (7 ratings)](https://appshunter.io/ios/app/lets-investigate/id1490479898/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 92 MB | 37 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [LETS - A Law Enforcement Technologies Corporation](https://appshunter.io/developer/990789778) | [Shrabani Sasmal](https://appshunter.io/developer/1817131561) |

## What reviewers say

### LETS Investigate

[App page](https://appshunter.io/ios/app/lets-investigate/id1490479898)

Securely capture and store investigative media like photos, videos, and audio. All evidence is encrypted, timestamped, signed, and audited on remote servers to ensure its integrity and prevent modification for legal cases.

**Highlights:** Secure media storage, Encryption, Timestamping, Digital signing, Audit trails, Remote server storage

**Features:** macOS Compatibility

**In-app purchases:** none


### mailin

[App page](https://appshunter.io/ios/app/mailin/id6767245397)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| mailin personal monthly | $4.99 | per month |
| mailin professional monthly | $9.99 | per month |
| personal yearly 01 | $44.99 | per year |
| mailin professional yearly | $79.99 | per year |


## Frequently asked questions

### Is LETS Investigate free?

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

### Is mailin free?

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

### Do LETS Investigate or mailin have ads?

Neither LETS Investigate nor mailin shows ads.

### Which is updated more often, LETS Investigate or mailin?

LETS Investigate ships an update every 2 months, and mailin every 2 months. Most recently, LETS Investigate was updated on October 24, 2026 and mailin on October 24, 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.*