SD Tech Messenger vs BioSmart ID
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SD Tech Messenger
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Make and receive text messages using your business phone number! • Use your business phone number to text instead of your personal number • Send and receive text and picture messages to/from any cell phone number in the continental US View your messages on multiple devices: • Use your account on multiple devices with one sign-in • Access your messages from any computer via your browser (Chrome/Firefox/Edge) • Multiple users can access the same number so you or your team can reply to any message Now your customers can communicate with you with the ease and convenience that they have when texting with friends and family. No need to download a separate messaging “app” to contact you - they can simply text your business number and get in touch.
BioSmart ID
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BioSmart ID is a modern and convenient alternative to physical RFID-cards. To start using the application: 1. Turn on Bluetooth. 2. Generate a card and provide a unique number to the Access Control System administrator for registration in the system. 3. Place your iPhone to the BioSmart reader. Characteristics: -The application runs both in the foreground and in the background. No screen unlock is required for identification. -The application is only compatible with readers manufactured by BioSmart and is not suitable for readers from other manufacturers.
Screenshots
Verdict
The clearest difference is update cadence: BioSmart ID at every 7 months against SD Tech Messenger's every 14 months. BioSmart ID also leads on iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and device support 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.
SD Tech Messenger ships an update every 14 months, BioSmart ID every 7 months. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.
| Parameter | SD Tech Messenger | BioSmart ID |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 14 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 51 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Textable | PROSOFT-BIOMETRIKS, OOO |
In-app purchases
SD Tech Messenger
No in-app purchases
BioSmart ID
No in-app purchases








