Comparison

Tandem by BlindShell vs TASSTA T.Star

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Tandem by BlindShell

Connect with loved ones through text, voice, and video calls. Offers remote control functionality for assistance with a specific phone model, ensuring easy communication and support.

Highlights
  • Text messaging
  • Voice messages
  • Free calls
  • Video calls
  • Remote phone control
Features
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Chat & Voice Messages Send text or voice messages effortlessly to stay in touch with your loved ones, no matter where you are. Calls & Video Calls Make free calls or video calls for support or simply to chat with friends and family. Remote Control Provide real-time help by remotely controlling your loved one’s BlindShell phone (with their permission), making it easy to assist with apps or settings.

About

TASSTA T.Star

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T.Star: Secure, 3GPP-Compliant Mission-Critical Communications The next-generation communication client for organizations and first responders operating in highly regulated, large-scale, and strategic environments. Designed for the maximum security and reliability T.Star delivers real-time communication when every second counts. Fully compliant with 3GPP standards, T.Star ensures seamless voice, emergency, and messaging capabilities, empowering the fastest, most coordinated response in the most critical situations. Powered by TASSTA 3GPP MCX Infrastructure, T.Star Delivers: - Mission Critical Push-to-Talk (MCPTT): Experience ultra-low latency, crystal-clear voice communication. Get instant one-to-one and group connections, every time, compliant with MCPTT standards. - Mission Critical Data (MCData): Securely exchange vital messages and real-time location data. Improve situational awareness, enhance coordination, and ensure your team is always informed, adhering to MCData protocols. Built for Unwavering Performance: T.Star is the ideal communication partner for first responders, public safety agencies, emergency services, critical infrastructure operators, and enterprise teams with highest operational demands. It provides the robust reliability and peak performance required to manage any scenario with confidence. Key Capabilities at Your Fingertips: - Priority Voice Calls: High-priority group calls (with and without floor control) and direct one-to-one voice calls. - Emergency & Alerts: Instant emergency and imminent peril alerts for immediate assistance. - Secure Messaging: Confidential text messaging for fast exchange of important information. - Integrated Tracking: Real-time location tracking and presence updates for complete team oversight. - Optimized for LTE and 5G networks: Built for superior performance, ensuring speed and stability essential for mission-critical operations. Important Note: This application requires a connection to the TASSTA MCX services (https://tassta.com/mcptt-2/) and valid user credentials to function. Stay connected. Stay mission-ready. With T.Star.

Screenshots

Tandem by BlindShell3 screens
TASSTA T.Star4 screens

Verdict

The call

The clearest difference is device support: Tandem by BlindShell at 3 against TASSTA T.Star's 1. Tandem by BlindShell also leads on iOS requirement (13.0 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

Tandem by BlindShell ships an update every 2 months, TASSTA T.Star every 6 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard2 real differences Β· 6 level
Tandem by BlindShell versus TASSTA T.Star: the parameters behind the verdict, then further details
ParameterTandem by BlindShellTASSTA T.Star
PriceFreeFree
Positive reviews0.0% of reviewsβ€”
Update frequencyEvery 2 monthsEvery 6 weeks β€” better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeβ€”
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS13.0 β€” better16.0
Further details β€” not scored
Size56 MB51 MB
Age rating4+4+
DeveloperMatapo a.s.TASSTA GmbH

In-app purchases

None

Tandem by BlindShell

No in-app purchases

None

TASSTA T.Star

No in-app purchases

Questions

Is Tandem by BlindShell free?
Tandem by BlindShell is free to download, with no in-app purchases.
Is TASSTA T.Star free?
TASSTA T.Star is free to download, with no in-app purchases.
Do Tandem by BlindShell or TASSTA T.Star have ads?
Neither Tandem by BlindShell nor TASSTA T.Star shows ads.
Which is updated more often, Tandem by BlindShell or TASSTA T.Star?
Tandem by BlindShell ships an update every 2 months, and TASSTA T.Star every 6 weeks. Most recently, Tandem by BlindShell was updated on October 30, 2026 and TASSTA T.Star on November 5, 2026.

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