Comparison

TrainKeeper vs SYXO

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

Head to head
About

TrainKeeper

Features
Read full description

TrainKeeper is the easiest way to identify and log trains in the real world. Just point your iPhone at a train number: the app reads the UIC / NVR code using on-device intelligence, breaks it into vehicle type, country, series, ordinal number and check digit — and helps you understand what you’re looking at: locomotive type, operator, and more. Whether you’re a railfan, a spotter, or you simply like knowing “what train is this?”, TrainKeeper gives you instant answers and a private logbook of everything you’ve seen. Scan and recognize • Scan a UIC / vehicle number directly with the camera • Works with photos too • Automatic parsing of vehicle type, country code, series, ordinal and check digit • Check-digit validation to verify if a number is correct • Smart OCR variants to improve recognition even on difficult photos Identify the train • Learn the operator and country of registration • Recognize the class or model (e.g. Siemens Vectron, ICE 4, Talent 2, …) • Understand the type of vehicle (locomotive, EMU, high-speed unit, maintenance vehicle, etc.) Save your sightings • Keep every sighting with photo, date and location • Automatically extracts GPS data from your photos when available • Build your personal train library with detailed entries • View and search past sightings in a clean, fast list Know the context • See the exact location on a map • NEW: TrainKeeper now detects the nearest railway line or route and adds it to your entry • Remember special catches, rare routes and travel moments Fix and confirm details • If OCR misses something, adjust every field easily before saving • Helpful guidance when parts of the number are incomplete or invalid • Manual entry supported for handwritten or hard-to-read codes Share your sightings • Share beautiful information cards with photo, train data and location • Optional 9:16 “story format” — perfect for Instagram stories • Optional app logo and timestamp Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SYXO

Enhance your personal safety by identifying potential hidden cameras and tracking devices in your surroundings. This tool helps you stay aware of your environment, detect unfamiliar electronic signals, and monitor for suspicious tracking patterns.

Highlights
  • Camera Risk Scanner
  • Nearby Device Scanner
  • Tracker Signal Finder
  • Smart Follow Alerts
  • Electronic Signal Scanner
  • Magnetic Signal Scanner
Features
Read full description

See what might be hidden. Identify potential cameras and trackers nearby. Whether you are traveling solo for work, staying in an hotels, or walking home alone at night, SYXO is your personal privacy awareness tool. It helps you better understand your surroundings and stay alert to potential hidden risks. 「 Camera Risk Scanner」 Stay aware in hotels, bathrooms, or changing rooms. Use your camera to highlight unusual reflections or lens-like objects that may indicate hidden cameras. Designed to support your awareness, not to guarantee detection. 「 Nearby Device Scanner」 Be mindful of your environment. View nearby electronic signals and unfamiliar devices around you. Results are based on signal strength and available data, and may vary depending on surroundings. 「 Tracker Signal Finder」 Protect your belongings and personal space. Detect unknown Bluetooth or tracking signals nearby, helping you recognize devices that may not belong to you. 「 Smart Follow Alerts」 Stay alert to unusual patterns. Observe repeated or persistent signals over time that may suggest tracking behavior. Use this feature as an additional awareness tool during your daily routine. 「 Electronic Signal Scanner」 Explore beyond what you can see. Monitor changes in magnetic fields that may be associated with electronic devices nearby. This feature provides environmental insights and should be used for reference only. 「 Electronic Signal Scanner」 Go beyond the surface. Use our magnetic signal scanner to locate concealed electronics behind walls or furniture. Our precision locator finds what the naked eye misses, giving you ultimate peace of mind. 
Auto-Renewal Description If you choose to purchase a VIP membership, the fee will be charged to your iTunes account. The subscription will automatically renew and charge the appropriate fee 24 hours before the end of the subscription period. After purchase, you can turn off auto-renewal at any time from your iTunes Store settings. Subscription Service and Monthly Plan: * Twelve-month membership: $24.99 「 Related Agreements 」 * Service Agreement: https://docs.google.com/document/d/1MTUgEuhqMX2LoQHejIcti3uoqApnraAyrh1hnLbhpOo * Privacy Policy: https://docs.google.com/document/d/1jyDv7-E0gVroDecMyvJrYA9tfgTwda9GgWBtSupPrdU 「 Business Cooperation Contact 」 kuangqiyingmail@163.com

Screenshots

TrainKeeper4 screens
SYXO4 screens

Verdict

The call

The clearest difference is update cadence: SYXO at every 5 days against TrainKeeper's every 3 weeks. SYXO also leads on iOS requirement (17.6 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. TrainKeeper sells 2 in-app purchases, starting at $1.99 per month and SYXO sells 1 in-app purchase, starting at $34.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

TrainKeeper ships an update every 3 weeks, SYXO every 5 days. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
TrainKeeper versus SYXO: the parameters behind the verdict, then further details
ParameterTrainKeeperSYXO
PriceFreeFree
Rating—4.8 (6 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—6 — better
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone
Requires iOS26.017.6 — better
Further details — not scored
Size60 MB50 MB
Age rating4+4+
DeveloperClemens Oberschmied其英 匡

In-app purchases

2 purchases

TrainKeeper

Subscriptions2
  • TrainKeeper Plus - Monatlich$1.991 Month
  • TrainKeeper Plus - Jährlich$12.991 Year
1 purchases

SYXO

Subscriptions1
  • Annual Subscription$34.991 Year

Questions

Is TrainKeeper free?
TrainKeeper is free to download, with in-app purchases available.
Is SYXO free?
SYXO is free to download, with in-app purchases available.
Do TrainKeeper or SYXO have ads?
Neither TrainKeeper nor SYXO shows ads.
Which is updated more often, TrainKeeper or SYXO?
TrainKeeper ships an update every 3 weeks, and SYXO every 5 days. Most recently, TrainKeeper was updated on October 3, 2026 and SYXO on October 16, 2026.

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