R2 Touch vs Troop Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
R2 Touch
This app serves as a remote control for R2-D2 replica robots equipped with specific receiver boards. It allows users to control various droid functions like dome panels, holoprojectors, sounds, and lighting. Users can upload their own sound files for playback and customize button commands.
- Control dome panels, holoprojectors, sounds, and lighting
- Upload custom sound files
- Programmable ASCII string commands
- WiFi and serial output options
- Customizable buttons
- R2-D2 inspired interface
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This is a remote control app for members of the R2 Builders Club. Apart from looking pretty, and playing sounds (if you upload them to the application), it doesn't do anything unless you are building an R2-D2 replica robot and have MarcDuino receiver boards (as described in www.marcduino.com and on my build log on Astromech.net). If you do, lucky you, it will allow you to control the dome panels, holoprojectors, sounds and dome lighting of your Droid in all sorts of interesting ways. You can see a demo of how it works with my R2 here: http://www.youtube.com/watch?v=AUod3LRQ1DI The app can run all the way down to iOS 8 on an iPhone 4S. The app doesn't include any sounds by default. If you want sounds to play directly from the app or through Bluetooth, you must upload your own sounds files to the App using iTunes. The sound files are typically the exact same you'd use in your remote sound system of the robot such as my MP3Trigger setup (described on www.marcduino.com). Commands, in the form of programmable short ASCII strings, are sent via the internal WiFi iPhone radio to a remote WiFly receiver. Alternately, the app also generates a 9600 baud serial output stream on the earphone audio port. This way you can send serial command to an external XBee transmitter radio for a more reliable link. You'll need a small level adapter board to use the audio serial capability, also on www.curiousmarc.com. Since you can customize most buttons and commands, you could also use this as a generic remote control app to send any short serial string via WiFi (to a WiFly radio fore example) or serial link (through an XBee). And with a spiffy R2-D2 inspired interface to boot!
Troop Tracker
Connect with your troop through a dedicated platform. Easily view your registered troops, engage in quick chats with members, and share photos of activities. The app offers real-time updates and a user-friendly interface for an organized and engaging troop experience.
- View and manage troops
- Quick chat with members
- Share troop activity photos
- Real-time updates and notifications
- User-friendly interface
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Troop Tracker: Connect with Your Troop Like Never Before! Join the ultimate platform for all your troop activities. With Troop Tracker, you can easily view the troops you're signed up for, quickly chat with other troopers, and share pictures with your community—all in one place! Key Features: View Troops: Instantly access and manage all the troops you're a part of. Keep track of upcoming events, meetings, and activities with ease. Quick Chat: Stay connected with your fellow troopers through our seamless chat feature. Plan outings, share updates, and keep the camaraderie alive. Share Moments: Capture and share your best moments with other troopers. Upload and view pictures from troop activities, creating a gallery of memories. User-Friendly Interface: Navigate through the app effortlessly with our intuitive and clean design. Real-Time Updates: Get instant notifications on troop updates, messages, and shared photos, so you're always in the loop. Troop Tracker is designed to make your troop experience more organized, engaging, and enjoyable.
Screenshots
Verdict
The clearest difference is price: Troop Tracker at Free against R2 Touch's $5.99. Troop Tracker also leads on update cadence (every 2 months vs every 10 months) and rating (5.0 vs 4.8). R2 Touch's advantage is ratings volume (9 vs 1) and iOS requirement (8.0 vs 15.6). On 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
Troop Tracker is free to download; R2 Touch costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Troop Tracker holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: R2 Touch has 9 ratings behind it against 1, so its average is the more settled of the two.
R2 Touch ships an update every 10 months, Troop Tracker every 2 months. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.
| Parameter | R2 Touch | Troop Tracker |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 4.8 (9 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 9 — better | 1 |
| Update frequency | Every 10 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 4 MB | 18 MB |
| Age rating | 4+ | 17+ |
| Developer | Neil Hutchison | Drennan Software LLC |
Customer experience
R2 Touch
Troop Tracker
In-app purchases
R2 Touch
No in-app purchases
Troop Tracker
No in-app purchases









