Comparison

Rostra vs Delphi

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

Head to head
About

Rostra

Discover timeless wisdom through a curated feed of humanity's greatest quotes. Explore ideas from philosophers, scientists, and leaders, and collect those that resonate with you. Follow influential figures and search for specific thoughts to enrich your mind.

Highlights
  • Curated quote feed
  • Follow influential figures
  • Collect favorite quotes
  • Search for quotes and figures
  • Spans diverse philosophies and thinkers
Features
Read full description

The war for your attention is real. Every scroll fills your mind with someone's ideas — why not the best ones? Rostra is a feed of humanity's greatest quotes. Ideas that have survived centuries of scrutiny. Scroll Marcus Aurelius, Emerson, Einstein, Churchill, and hundreds more — the way you already scroll, with thoughts that last. What you can do: • Curated feed — For You or Following tabs • Follow figures who speak to you • Collect quotes that stop you cold • Search any figure or quote The collection spans Stoic philosophy, Greek and Eastern thought, American Transcendentalism, science, poetry, statecraft, and more. Fill your mind with great ideas, not mediocre ones.

About

Delphi

This app provides a synchronized reading and listening experience for classic literature. As the audio plays, the text is highlighted, and you can tap any sentence to resume narration from that exact point. Enjoy offline access to a curated library of timeless works.

Highlights
  • Synchronized text and audio narration
  • Tap to play sentence feature
  • Offline reading and listening
  • Automatic resume functionality
  • Bookmark saving
  • Background playback
Features
Read full description

Delphi is a reader for the great books — with narration that stays in sync with the text. As the audio plays, the current sentence is highlighted and the page scrolls with it. Tap any sentence to hear it from exactly that point. Close the app mid-chapter and Delphi brings you back to the same spot, ready to continue. THE LIBRARY • Thucydides — History of the Peloponnesian War • Augustine — Confessions • Plato — Dialogues (Apology, Phaedo, Symposium, Republic and more) • Goethe — Faust • Aristotle — Nicomachean Ethics and Politics • The Bible (KJV) — Old Testament • Hamilton, Madison, Jay — The Federalist Papers • Machiavelli — The Prince • Dostoevsky — Crime and Punishment MADE FOR LISTENING • Word-for-word sync: the sentence being read is always highlighted • Tap to play: touch any line to jump the narration there • Background playback with full lock screen and Control Center controls • Skip back and forward 15 seconds, scrub anywhere MADE FOR READING • The complete text of every work is built in — no connection needed to read • Download any work's audio once and listen fully offline • Bookmarks for every book: save a passage, jump back to it anytime • Automatic resume: pick up exactly where you stopped, even after restarting No account. No subscription. No ads. Just the classics, read to you.

Screenshots

Rostra2 screens
Delphi1 screens

Verdict

The call

The clearest difference is update cadence: Rostra at every 2 days against Delphi's every 4 days. On price, rating, ratings volume and ads 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Rostra against 5.0 for Delphi. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Rostra ships an update every 2 days, Delphi every 4 days. Both last shipped on October 31, 2026.

Scorecard1 real difference · 8 level
Rostra versus Delphi: the parameters behind the verdict, then further details
ParameterRostraDelphi
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 2 days — betterEvery 4 days
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size48 MB18 MB
Age rating4+4+
DeveloperDawn PatrolChenyu Li

Customer experience

Rostra

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Delphi

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Rostra

No in-app purchases

None

Delphi

No in-app purchases

Questions

Is Rostra free?
Rostra is free to download, with no in-app purchases.
Is Delphi free?
Delphi is free to download, with no in-app purchases.
Which has better reviews, Rostra or Delphi?
Rostra and Delphi are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Rostra or Delphi have ads?
Neither Rostra nor Delphi shows ads.
Which is updated more often, Rostra or Delphi?
Rostra ships an update every 2 days, and Delphi every 4 days. Most recently, Rostra was updated on October 31, 2026 and Delphi on October 31, 2026.

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