TKController vs SDRFE Spectrum Analyser
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TKController
This utility app simplifies the control of GPS tracker devices by generating SMS messages for commands. It supports various TK-series trackers and similar devices, allowing users to manage features like geo-fencing, shock alerts, and location tracking.
- SMS message generation for tracker commands
- Geo-fencing and stockade area alerts
- Shock and movement detection notifications
- Configurable position update frequency
- Device status monitoring (battery, GPS, GSM)
- Remote engine disable function
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An app to simplify control of the TK-102 compatible and similar GPS Tracker devices. Simplifying the creation of SMS text messages to send to and control your device. The app supports the TK102,TK103,TK104,TK105,TK106 devices and any other trackers that use the same protocols. Additional protocols/devices can be added by request. See the support page for more information. The app supports multiple devices and regularly used stockade settings can be saved, viewed and activated. The app supports the following functions (depending on the device support)... - Stockade or Geo Fence: Define, view and activate stockade areas, sending you an alert should the tracker move outside the defined area. - Shock: Turn the shock sensor on so you will be notified if the unit (or your vehicle) is disturbed. - Move: Notify you if the tracker (or your vehicle) changes position while armed. - Track: Receive regular updates of the tracker or vehicle position, define the frequency of the updates and how many updates. - Status: Monitor the battery life, GPS status, GSM connection status and GPRS status. - Locate: Ask the tracker to report it's current position. - Remote engine/electrical disable. The app uses SMS messages to communicate with the device. Each SMS message is generated and displayed to the user for review before sending.
SDRFE Spectrum Analyser
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Real-time RF spectrum analyser application for SDRFE hardware platforms.
Screenshots
Verdict
The clearest difference is ads: SDRFE Spectrum Analyser at none against TKController's shown. SDRFE Spectrum Analyser also leads on update cadence (every 9 days vs every 11 months). TKController's advantage is iOS requirement (11.0 vs 18.6). On price, 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.
TKController ships an update every 11 months, SDRFE Spectrum Analyser every 9 days. Both last shipped on October 15, 2026.
| Parameter | TKController | SDRFE Spectrum Analyser |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 11 months | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 13 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Dave White | XionLogic Limited |
In-app purchases
TKController
No in-app purchases
SDRFE Spectrum Analyser
No in-app purchases
Questions
Is TKController free?
Is SDRFE Spectrum Analyser free?
Do TKController or SDRFE Spectrum Analyser have ads?
Which is updated more often, TKController or SDRFE Spectrum Analyser?
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