Comparison

Predjama Castle vs TP Line

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

Head to head
About

Predjama Castle

Explore the history and legends of the world's largest cave castle. Discover the story of Erazem of Predjama, learn about the castle's former owners, and see its opulent rooms. Includes information on the adjacent cave, which is home to bats.

Highlights
  • World's largest cave castle history
  • Legends of Erazem of Predjama
  • Detailed castle room descriptions
  • Information on the Cave under Predjama Castle
  • Details on former owners and inhabitants
  • Seasonal cave access information
Features
Read full description

Take a walk through the world’s biggest cave castle. Romantic appeal of Predjama Castle is emphasized by the idyllic River Lokva, which disappears into the underground world deep down below the castle. The undoubtedly most famous of all castle inhabitants was the knight Erazem of Predjama, who rebelled against the imperial autocracy in the 15th century. Nowadays Erazem is the main protagonist of numerous legends, which on the one hand glorify him as a passionate, handsome, noble knight, while on the other hand he is described as a bandit ans a robber baron, who eventually breathed his last while in the toilet. The castle is only accessible from one side, however the legend has it that the robber baron Erazem was getting his food and drinks supply through a secret passage leading from the old castle onto the surface. During this time, the emperor's army was besieging his castle in vain and it took a trick played on Erazem by his opponents and a corrupt servant for Erazem to fall. Visitors learn about the history of the castle and its former owners in the front tower. In other parts of the castle the equipment includes a selection original items, as well as replicas and models. The room with the most opulent equipment is the knight’s room; the castle life in the late Gothic period is presented to visitors in the dining room. The Renaissance hall on the third floor is where hunting trophies of the last castle owner, the Windischgrätz Prince, are exhibited. From June to September it is also possible to visit the picturesque Cave under Predjama Castle. Owing to its position and favourable temperatures it is inhabited by interesting dwellers – a colony of bats, which is why it is not possible to get inside the cave during the bats’ winter hibernation period.

About

TP Line

Book tickets for fast passenger ferries connecting coastal towns and islands along the Croatian Adriatic coast. Plan your trips easily and secure your spot on modern vessels without waiting in lines.

Highlights
  • Passenger transportation services
  • Connects coastal towns and islands
  • In-app ticket purchasing
  • Trip planning assistance
  • Modern and fast vessels
Features
Read full description

Fast and reliable transportation services in the Croatian part of the Adriatic. Download our free app and secure your spot onboard our vessels. TP Line offers passenger transportation in modern and fast vessels. We connect coastal towns with destinations on the islands and with each other. Search through the destinations we sail to and pick the one you like the most. With our app, the Adriatic shore has never been more accessible. Buy one or more tickets in-app and secure your place on our fast and comfortable ships without waiting in lines. Don't forget to check out other features included into our app which will make you trip planning much easier.

Screenshots

Predjama Castle4 screens
TP Line4 screens

Verdict

The call

The clearest difference is review sentiment: Predjama Castle at 75% against TP Line's 0%. Predjama Castle also leads on iOS requirement (12.0 vs 15.1). TP Line's advantage is update cadence (every 5 weeks vs every 3 months). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Predjama Castle ships an update every 3 months, TP Line every 5 weeks. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Predjama Castle versus TP Line: the parameters behind the verdict, then further details
ParameterPredjama CastleTP Line
PriceFreeFree
Rating—1.0 (2 ratings) — better
Positive reviews75.0% of reviews — better0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 3 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size40 MB50 MB
Age rating4+4+
DeveloperOPHRYS SystèmesTP Line d.o.o.

Customer experience

Predjama Castle

Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

TP Line

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Predjama Castle

No in-app purchases

None

TP Line

No in-app purchases

Questions

Is Predjama Castle free?
Predjama Castle is free to download, with no in-app purchases.
Is TP Line free?
TP Line is free to download, with no in-app purchases.
Do Predjama Castle or TP Line have ads?
Neither Predjama Castle nor TP Line shows ads.
Which is updated more often, Predjama Castle or TP Line?
Predjama Castle ships an update every 3 months, and TP Line every 5 weeks. Most recently, Predjama Castle was updated on October 14, 2026 and TP Line on October 24, 2026.

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