Comparison

Ovidius vs NLB Mobile

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

Head to head
About

Ovidius

This app provides access to ancient Chinese philosophical texts, including the I Ching and its commentaries. Explore foundational concepts of cosmology, ethics, and change through classic writings.

Highlights
  • I Ching text
  • Commentaries included
  • Ancient Chinese philosophy
  • Foundational concepts
  • Cosmology and ethics
Features
Read full description

「大哉乾元,萬物資始,乃統天。雲行雨施,品物流形,大明終始,六位時成,時乘六龍以御天。乾道變化,各正性命,保合大和,乃利貞。首出庶物,萬國咸寧。」〈彖傳〉 「天行健,君子以自強不息。」〈象傳〉 「天尊地卑,乾坤定矣。卑高以陳,貴賤位矣。動靜有常,剛柔斷矣。方以類聚,物以羣分,吉凶生矣。在天成象,在地成形,變化見矣。」〈繫辭傳〉 「天地定位,山澤通氣,雷風相薄,水火不相射。八卦相錯,數往者順,知來者逆。是故易逆數也。」〈說卦傳〉 「有天地,然后萬物生焉。盈天地之間者,唯萬物,故受之以屯;屯者盈也,屯者物之始生也。」〈序卦傳〉 「乾剛,坤柔,比樂師憂。臨觀之義,或與或求。屯見而不失其居,蒙雜而著。震,起也,艮,止也。損、益,盛衰之始也。」〈雜卦傳〉 「元者,善之長也;亨者,嘉之會也;利者,義之和也;貞者,事之幹也。君子體仁足以長人,嘉會足以合禮,利物足以和義,貞固足以幹事。君子行此四德者,故曰乾、元、亨、利、貞。」〈文言傳〉

About

NLB Mobile

Access a vast collection of ebooks, audiobooks, magazines, and newspapers. Borrow physical items, take online courses, and manage your library account and family's accounts easily. Discover new digital resources and log in securely with QR Login.

Highlights
  • Read ebooks and audiobooks
  • Access eMagazines and eNewspapers
  • Take online courses
  • Borrow physical library items
  • Manage library accounts
  • QR Login for easy sign-in
Features
Read full description

This application is brought to you by the National Library Board, a Singapore Government Agency. Discover a world of learning with the NLB Mobile app, anywhere, anytime: • Read ebooks and listen to audiobooks • Read current eMagazines and eNewspapers • Access online courses • Borrow physical library items using your mobile device • Discover new digital resources and sign in to our websites easily with QR Login • Manage your library account, and also your family’s accounts

Screenshots

Ovidius4 screens
NLB Mobile4 screens

Verdict

The call

The clearest difference is price: NLB Mobile at Free against Ovidius's $2.99. NLB Mobile also leads on update cadence (monthly vs every 5 months). On ads, in-app purchases, device support and iOS requirement 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

NLB Mobile is free to download; Ovidius costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Ovidius ships an update every 5 months, NLB Mobile monthly. The most recent releases landed on October 5, 2026 and October 17, 2026 respectively.

Scorecard3 real differences · 7 level
Ovidius versus NLB Mobile: the parameters behind the verdict, then further details
ParameterOvidiusNLB Mobile
Price$2.99Free — better
Rating—3.3 (35 ratings) — better
Positive reviews—41.3% of reviews
Number of ratings—35 — better
Update frequencyEvery 5 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size5 MB122 MB
Age rating4+4+
DeveloperYu Tse WuNational Library Board Singapore

In-app purchases

None

Ovidius

No in-app purchases

None

NLB Mobile

No in-app purchases

Questions

Is Ovidius free?
Ovidius costs $2.99, with no in-app purchases.
Is NLB Mobile free?
NLB Mobile is free to download, with no in-app purchases.
Do Ovidius or NLB Mobile have ads?
Neither Ovidius nor NLB Mobile shows ads.
Which is updated more often, Ovidius or NLB Mobile?
Ovidius ships an update every 5 months, and NLB Mobile monthly. Most recently, Ovidius was updated on October 5, 2026 and NLB Mobile on October 17, 2026.

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