Power Sonic vs LETS Investigate
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Power Sonic
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.
- Wireless Bluetooth connection
- Track cycle life
- Display State Of Charge (SOC)
- Monitor voltage, current, and temperature
- View battery events
- Independent BMS access
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Power Sonic Battery Smart Connect This app allows you to connect to all of your Power Sonic Lithium Ion batteries. This application is only for Power Sonic batteries. FEATURES * No need for a separate battery monitor⋯save hundreds of dollars! * Wirelessly connect to each battery from your phone. * Access each BMS independently with multiple batteries. * Track Cycle Life on each battery. * Displays State Of Charge (SOC) percentage with circle graphic. * Display voltage, charging or discharging current, and temperature. * Easy to read gauges. * Battery Events displayed in easy to understand text. * Works up to 15 feet away. * Displays each battery signal level. * Uses Bluetooth BLE 4.0 or later CONNECTION * Compatible with iPhones with IOS 11.0 or later * Only one device connects at a time.
LETS Investigate
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.
- Secure media storage
- Encryption
- Timestamping
- Digital signing
- Audit trails
- Remote server storage
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Get your phone out of the chain of custody. If you’re using a work or personal phone for investigative work, it’s a legal liability. LETS Investigate stores and encrypts any photos, video or audio created within the app on secure remote servers. Evidence is timestamped, signed, and audited the moment it’s created on your device so you can be sure that it’s never modified and that you can produce the original file for your cases.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Power Sonic | LETS Investigate |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) | 2.6 (7 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 | 7 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 13 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | Power Sonic Europe Limited | LETS - A Law Enforcement Technologies Corporation |
Customer experience
Power Sonic
LETS Investigate
In-app purchases
Power Sonic
No in-app purchases
LETS Investigate
No in-app purchases
Questions
Is Power Sonic free?
Is LETS Investigate free?
Which has better reviews, Power Sonic or LETS Investigate?
Do Power Sonic or LETS Investigate have ads?
Which is updated more often, Power Sonic or LETS Investigate?
Other comparisons
