# Power Sonic vs LETS Investigate

Power Sonic and LETS Investigate both sit at 2.5 stars, but that hides the real split: 100% of Power Sonic's written reviews are positive against 0% of LETS Investigate's. LETS Investigate's advantage is ratings volume (7 vs 2). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 2.5 for Power Sonic against 2.6 for LETS Investigate. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews are what separate them: 100% of Power Sonic's written reviews are positive against 0% of LETS Investigate's.

Power Sonic ships an update every 3 months, LETS Investigate every 2 months. The most recent releases landed on September 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Power Sonic | LETS Investigate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/power-sonic/id1460233458/reviews) | **[2.6 (7 ratings)](https://appshunter.io/ios/app/lets-investigate/id1490479898/reviews)** |
| Number of ratings | 2 | **7** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 13 MB | 92 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Power Sonic Europe Limited](https://appshunter.io/developer/1460233457) | [LETS - A Law Enforcement Technologies Corporation](https://appshunter.io/developer/990789778) |

## What reviewers say

### Power Sonic

[App page](https://appshunter.io/ios/app/power-sonic/id1460233458)

Monitor your Power Sonic Lithium Ion batteries wirelessly from your phone. Track cycle life, state of charge, voltage, current, and temperature with easy-to-read gauges and event logs. Save money by eliminating the need for separate battery monitors.

**Highlights:** Wireless Bluetooth connection, Track cycle life, Display State Of Charge (SOC), Monitor voltage, current, and temperature, View battery events, Independent BMS access

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Power Sonic free?

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

### Is LETS Investigate free?

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

### Which has better reviews, Power Sonic or LETS Investigate?

LETS Investigate is rated higher. Power Sonic averages 2.5 out of 5 from 2 ratings, while LETS Investigate averages 2.6 from 7 ratings.

### Do Power Sonic or LETS Investigate have ads?

Neither Power Sonic nor LETS Investigate shows ads.

### Which is updated more often, Power Sonic or LETS Investigate?

Power Sonic ships an update every 3 months, and LETS Investigate every 2 months. Most recently, Power Sonic was updated on September 17, 2026 and LETS Investigate 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.*