
52
BU Score
Solid
Z21 mobile
✍️ BU Analytics Review
“
Z21 mobile is an Android app from Roco | Fleischmann | Z21 in the Entertainment category, currently rated 3.6★ across 1,484 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.
Our BU Score puts it at 52 — Solid (established niche player). For a Entertainment app, that means established niche player.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 3 of 3 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Low install base (1,484 ratings)METRIC | +$1,500 | |
| Mature app (13y old)METRIC | +$1,500 | |
| Ad-supported / freemiumMETRIC | +$600 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v2.6.9🔄 updated 8y ago📂 Entertainment💰 Free💎 IAP $12.80 - $13.23 per item🚀 Launched 2012 (13y old)
📝 About this app
Use this app to connect to a Z21 Digital Center.
With this app you can manage locomotive libraries, locomotives and locomotive functions, program digital components and of course control all locomotives with DCC- or Motorola-decoder, as easy and convenient as is only possible with touch-technology.
The digital switchboard Z21 connects your model train unit and your digital locomotives with your Android device via WLAN. This way you can control the operation on your train layout easily and conveniently from your mobile device.
Model train control was never this easy and convenient: With one swipe of your hand you can scroll to your model of choice in the locomotive library. A slight touch on the headlight symbol and the front and backlights go on. A second touch, this time on the speaker symbol, and the locomotive makes a sound. Drag your finger over the speed indicator and the train accelerates.
The further highlights of the Z21-Mobile-App
- Control your entire layout with an intuitive, graphic interface and have easy access to the entire scope of functions of your digital locomotives.
- Manage your entire locomotive-library in just one application, including individual locomotive images for an ideal overview.
- Control the digital functions of your locomotives with intuitive function symbols instead of complicated key combinations.
- Download drivers cabs for even more reality
- Create locomotives, wagons, accessory and trains to drive with
- Place turnouts, turnout routes and notes on your track to interact with your railroad
With this app you can manage locomotive libraries, locomotives and locomotive functions, program digital components and of course control all locomotives with DCC- or Motorola-decoder, as easy and convenient as is only possible with touch-technology.
The digital switchboard Z21 connects your model train unit and your digital locomotives with your Android device via WLAN. This way you can control the operation on your train layout easily and conveniently from your mobile device.
Model train control was never this easy and convenient: With one swipe of your hand you can scroll to your model of choice in the locomotive library. A slight touch on the headlight symbol and the front and backlights go on. A second touch, this time on the speaker symbol, and the locomotive makes a sound. Drag your finger over the speed indicator and the train accelerates.
The further highlights of the Z21-Mobile-App
- Control your entire layout with an intuitive, graphic interface and have easy access to the entire scope of functions of your digital locomotives.
- Manage your entire locomotive-library in just one application, including individual locomotive images for an ideal overview.
- Control the digital functions of your locomotives with intuitive function symbols instead of complicated key combinations.
- Download drivers cabs for even more reality
- Create locomotives, wagons, accessory and trains to drive with
- Place turnouts, turnout routes and notes on your track to interact with your railroad
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Z21 mobile
- Developer
- Roco | Fleischmann | Z21
- Bundle ID
- vivid.planet.roco
- App Store URL
- Open in App Store
- Category
- Entertainment
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.z21.eu
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $557/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $12.80 - $13.23 per item
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth1,484 ratings+-1% lifetimeShow 3-year history estimate ▾
Tracked (1 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.




