CIELO USAL vs Libros
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CIELO USAL
Access a vast digital library of academic, scientific, and leisure e-books. Manage loans and reservations, read online, or download titles for offline access. Customize your reading experience with adjustable fonts, brightness, and annotation tools.
- Browse library catalog
- Manage loans and reservations
- Read e-books online
- Download books for offline reading
- Customize reading format
- Add notes and highlights
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Para usar esta app debes formar parte de la comunidad universitaria de la Universidad de Salamanca. Desde la app podrás navegar por el catálogo, realizar préstamos y reservas, leer online y descargar libros para leer sin conexión a internet. Tendrás acceso a miles de libros electrónicos académicos, científicos y de ocio. Podrás cambiar a tu gusto el formato de lectura, el tipo y tamaño de la fuente, además de ajustar el brillo, el interlineado, subrayar el texto y realizar notas.
Libros
Access a curated collection of Spanish e-books from the Complutense University of Madrid. This platform allows university members to search, browse, read, digitally borrow, and reserve titles across various fields of knowledge.
- Access to curated Spanish e-books
- Search and browse collection
- Digital borrowing and reservations
- Read and navigate titles
- University community access
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La biblioteca de la Universidad Complutense de Madrid pone a disposición de su comunidad universitaria una colección seleccionada de libros electrónicos en español de las distintas áreas de conocimiento, en la plataforma Letmino. A través de la app, los usuarios de la biblioteca pueden acceder a todos los contenidos seleccionados y trabajar con las diferentes funcionalidades de la plataforma: búsqueda, navegación, lectura, préstamo digital y reserva de títulos.
Screenshots
Verdict
The clearest difference is rating: CIELO USAL at 5.0 against Libros's 3.0. CIELO USAL also leads on ratings volume (3 vs 1). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CIELO USAL holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.
| Parameter | CIELO USAL | Libros |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Fortnightly | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 74 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Universidad de Salamanca | Odilo |
Customer experience
CIELO USAL
Libros
In-app purchases
CIELO USAL
No in-app purchases
Libros
No in-app purchases
Questions
Is CIELO USAL free?
Is Libros free?
Which has better reviews, CIELO USAL or Libros?
Do CIELO USAL or Libros have ads?
Which is updated more often, CIELO USAL or Libros?
Other comparisons
